tests: Removed test-progs/pthread

The Pthread source is now found in gem5-resources:
https://gem5.googlesource.com/public/gem5-resources/+/refs/heads/master/src/pthreads

The pre-compiled binaries are pulled from dist.gem5.org.

There is no reason to keep these here. They are therefore being
removed.

Change-Id: Id07dc72c62d19920fb304eea505deaa9ebc5599f
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/33141
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
diff --git a/tests/test-progs/pthread/Makefile.aarch32 b/tests/test-progs/pthread/Makefile.aarch32
deleted file mode 100644
index 1acb097..0000000
--- a/tests/test-progs/pthread/Makefile.aarch32
+++ /dev/null
@@ -1,39 +0,0 @@
-# Copyright (c) 2019 ARM Limited
-# All rights reserved.
-#
-# The license below extends only to copyright in the software and shall
-# not be construed as granting a license to any other intellectual
-# property including but not limited to intellectual property relating
-# to a hardware implementation of the functionality of the software
-# licensed hereunder.  You may use the software subject to the license
-# terms below provided that you ensure that this notice is replicated
-# unmodified and in its entirety in all distributions of the software,
-# modified or unmodified, in source code or in binary form.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met: redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer;
-# redistributions in binary form must reproduce the above copyright
-# notice, this list of conditions and the following disclaimer in the
-# documentation and/or other materials provided with the distribution;
-# neither the name of the copyright holders nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-CROSS_COMPILE = arm-linux-gnueabihf-
-BIN_DIR = bin.aarch32
-
--include Makefile.common
diff --git a/tests/test-progs/pthread/Makefile.aarch64 b/tests/test-progs/pthread/Makefile.aarch64
deleted file mode 100644
index da30820..0000000
--- a/tests/test-progs/pthread/Makefile.aarch64
+++ /dev/null
@@ -1,39 +0,0 @@
-# Copyright (c) 2019 ARM Limited
-# All rights reserved.
-#
-# The license below extends only to copyright in the software and shall
-# not be construed as granting a license to any other intellectual
-# property including but not limited to intellectual property relating
-# to a hardware implementation of the functionality of the software
-# licensed hereunder.  You may use the software subject to the license
-# terms below provided that you ensure that this notice is replicated
-# unmodified and in its entirety in all distributions of the software,
-# modified or unmodified, in source code or in binary form.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met: redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer;
-# redistributions in binary form must reproduce the above copyright
-# notice, this list of conditions and the following disclaimer in the
-# documentation and/or other materials provided with the distribution;
-# neither the name of the copyright holders nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-CROSS_COMPILE = aarch64-linux-gnu-
-BIN_DIR = bin.aarch64
-
--include Makefile.common
diff --git a/tests/test-progs/pthread/Makefile.common b/tests/test-progs/pthread/Makefile.common
deleted file mode 100644
index f5957a9..0000000
--- a/tests/test-progs/pthread/Makefile.common
+++ /dev/null
@@ -1,64 +0,0 @@
-# Copyright (c) 2019 ARM Limited
-# All rights reserved.
-#
-# The license below extends only to copyright in the software and shall
-# not be construed as granting a license to any other intellectual
-# property including but not limited to intellectual property relating
-# to a hardware implementation of the functionality of the software
-# licensed hereunder.  You may use the software subject to the license
-# terms below provided that you ensure that this notice is replicated
-# unmodified and in its entirety in all distributions of the software,
-# modified or unmodified, in source code or in binary form.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met: redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer;
-# redistributions in binary form must reproduce the above copyright
-# notice, this list of conditions and the following disclaimer in the
-# documentation and/or other materials provided with the distribution;
-# neither the name of the copyright holders nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-CC := $(CROSS_COMPILE)$(CC)
-CXX := $(CROSS_COMPILE)$(CXX)
-LD := $(CXX)
-CCFLAGS ?=
-CXXFLAGS ?= -g -O3 -static -std=c++11
-LDFLAGS ?= -pthread
-
-BIN_DIR ?= ./bin
-
-TESTS = test_pthread_create_seq 	\
-	test_pthread_create_para 	\
-	test_pthread_mutex		\
-	test_atomic			\
-	test_pthread_cond		\
-	test_std_thread			\
-	test_std_mutex			\
-	test_std_condition_variable
-
-all: $(addprefix $(BIN_DIR)/,$(TESTS))
-
-$(BIN_DIR)/%: src/%.cpp
-	@mkdir -p $(BIN_DIR)
-	$(CXX) -o $@ $(CCFLAGS) $(CXXFLAGS) $(LDFLAGS) $^
-
-clean:
-	$(RM) $(BIN_DIR)/*
-
-.PHONY: all clean
-
diff --git a/tests/test-progs/pthread/Makefile.riscv b/tests/test-progs/pthread/Makefile.riscv
deleted file mode 100644
index ea486a7..0000000
--- a/tests/test-progs/pthread/Makefile.riscv
+++ /dev/null
@@ -1,39 +0,0 @@
-# Copyright (c) 2019 ARM Limited
-# All rights reserved.
-#
-# The license below extends only to copyright in the software and shall
-# not be construed as granting a license to any other intellectual
-# property including but not limited to intellectual property relating
-# to a hardware implementation of the functionality of the software
-# licensed hereunder.  You may use the software subject to the license
-# terms below provided that you ensure that this notice is replicated
-# unmodified and in its entirety in all distributions of the software,
-# modified or unmodified, in source code or in binary form.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met: redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer;
-# redistributions in binary form must reproduce the above copyright
-# notice, this list of conditions and the following disclaimer in the
-# documentation and/or other materials provided with the distribution;
-# neither the name of the copyright holders nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-CROSS_COMPILE = riscv64-unknown-linux-gnu-
-BIN_DIR = bin.riscv64
-
--include Makefile.common
diff --git a/tests/test-progs/pthread/Makefile.x86 b/tests/test-progs/pthread/Makefile.x86
deleted file mode 100644
index 90013cd..0000000
--- a/tests/test-progs/pthread/Makefile.x86
+++ /dev/null
@@ -1,39 +0,0 @@
-# Copyright (c) 2019 ARM Limited
-# All rights reserved.
-#
-# The license below extends only to copyright in the software and shall
-# not be construed as granting a license to any other intellectual
-# property including but not limited to intellectual property relating
-# to a hardware implementation of the functionality of the software
-# licensed hereunder.  You may use the software subject to the license
-# terms below provided that you ensure that this notice is replicated
-# unmodified and in its entirety in all distributions of the software,
-# modified or unmodified, in source code or in binary form.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met: redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer;
-# redistributions in binary form must reproduce the above copyright
-# notice, this list of conditions and the following disclaimer in the
-# documentation and/or other materials provided with the distribution;
-# neither the name of the copyright holders nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-CROSS_COMPILE =
-BIN_DIR = bin.x86
-
--include Makefile.common
diff --git a/tests/test-progs/pthread/src/test_atomic.cpp b/tests/test-progs/pthread/src/test_atomic.cpp
deleted file mode 100644
index 68c94e4..0000000
--- a/tests/test-progs/pthread/src/test_atomic.cpp
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
-  * Copyright (c) 2018, Cornell University
-  * All rights reserved.
-  *
-  * Redistribution and use in source and binary forms, with or
-  * without modification, are permitted provided that the following
-  * conditions are met:
-  *
-  * Redistributions of source code must retain the above copyright
-  * notice, this list of conditions and the following disclaimer.
-  *
-  * Redistributions in binary form must reproduce the above
-  * copyright notice, this list of conditions and the following
-  * disclaimer in the documentation and/or other materials provided
-  * with the distribution.
-  *
-  * Neither the name of Cornell University nor the names of its
-  * contributors may be used to endorse or promote products derived
-  * from this software without specific prior written permission.
-  *
-  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-  * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
-  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
-  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-  * POSSIBILITY OF SUCH DAMAGE.
-  */
-
-#include <pthread.h>
-
-#include <atomic>
-#include <cstdlib>
-#include <iostream>
-
-//------------------------------------------------------------------------
-// Create n threads, run them in parallel and wait for them in the master
-// thread.
-// Each child thread increments a shared variable m times atomically
-//------------------------------------------------------------------------
-
-#define MAX_N_WORKER_THREADS 10
-
-typedef struct
-{
-    int nsteps;
-    std::atomic<int>* shared_var;
-} ThreadArg;
-
-void* func( void* args )
-{
-    ThreadArg* my_args = ( ThreadArg* ) args;
-
-    int nsteps = my_args->nsteps;
-    std::atomic<int>* shared_var = my_args->shared_var;
-
-    for ( int i = 0; i < nsteps; ++i ) {
-        std::atomic_fetch_add(shared_var, 1);
-    }
-
-    return nullptr;
-}
-
-int main( int argc, const char* argv[] )
-{
-    int n_worker_threads = 0;
-
-    // allocate all threads
-    pthread_t* threads = new pthread_t[MAX_N_WORKER_THREADS];
-
-    // variable shared among all threads
-    std::atomic<int> shared_var(0);
-
-    // number of steps each thread increments the shared_var
-    int nsteps = 1000;
-
-    // set up threads' arguments
-    ThreadArg* t_args = new ThreadArg[MAX_N_WORKER_THREADS];
-
-    int ret = 0;
-    for ( size_t tid = 0; tid < MAX_N_WORKER_THREADS; tid++ ){
-        t_args[tid].nsteps = nsteps;
-        t_args[tid].shared_var = &shared_var;
-
-        // spawn thread
-        ret = pthread_create( threads + tid, nullptr, func, &t_args[tid] );
-
-        if (ret != 0) {
-            break;
-        }
-
-        n_worker_threads++;
-    }
-
-    // sync up all threads
-    for ( int tid = 0; tid < n_worker_threads; ++tid ) {
-        pthread_join( threads[tid], nullptr );
-    }
-
-    // clean up
-    delete[] threads;
-    delete[] t_args;
-
-    // verify
-    if ( shared_var != n_worker_threads * nsteps || n_worker_threads < 1)
-        return EXIT_FAILURE;
-
-    return EXIT_SUCCESS;
-}
diff --git a/tests/test-progs/pthread/src/test_pthread_cond.cpp b/tests/test-progs/pthread/src/test_pthread_cond.cpp
deleted file mode 100644
index 5552f78..0000000
--- a/tests/test-progs/pthread/src/test_pthread_cond.cpp
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
-  * Copyright (c) 2018, Cornell University
-  * All rights reserved.
-  *
-  * Redistribution and use in source and binary forms, with or
-  * without modification, are permitted provided that the following
-  * conditions are met:
-  *
-  * Redistributions of source code must retain the above copyright
-  * notice, this list of conditions and the following disclaimer.
-  *
-  * Redistributions in binary form must reproduce the above
-  * copyright notice, this list of conditions and the following
-  * disclaimer in the documentation and/or other materials provided
-  * with the distribution.
-  *
-  * Neither the name of Cornell University nor the names of its
-  * contributors may be used to endorse or promote products derived
-  * from this software without specific prior written permission.
-  *
-  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-  * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
-  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
-  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-  * POSSIBILITY OF SUCH DAMAGE.
-  *
-  * Author: Moyang Wang
-  */
-
-#include <pthread.h>
-
-#include <cstdlib>
-#include <iostream>
-#include <mutex>
-#include <vector>
-
-//------------------------------------------------------------------------
-// Test pthread_cond
-//------------------------------------------------------------------------
-// The master thread creates N threads, each of which waits on a
-// condition variable of a signal to start. The master thread then set
-// the signal and notifies all other threads to begin.
-
-#define MAX_N_WORKER_THREADS 10
-
-pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
-pthread_cond_t  cv = PTHREAD_COND_INITIALIZER;
-
-bool ready = false;
-
-void* print_id( void* arg_vptr )
-{
-    pthread_mutex_lock( &mutex );
-    long id = (long)arg_vptr;
-
-    while (!ready) {
-        pthread_cond_wait( &cv, &mutex );
-    }
-    // ...
-    std::cout << "thread " << id << '\n';
-
-    pthread_mutex_unlock( &mutex );
-
-    return nullptr;
-}
-
-void go()
-{
-    pthread_mutex_lock( &mutex );
-    ready = true;
-    pthread_cond_broadcast( &cv );
-    pthread_mutex_unlock( &mutex );
-}
-
-int main( int argc, char* argv[] )
-{
-    size_t n_worker_threads = 0;
-
-    std::vector< pthread_t > threads( MAX_N_WORKER_THREADS );
-
-    int ret = 0;
-    for ( size_t i = 0; i < MAX_N_WORKER_THREADS; i++ ){
-        ret = pthread_create( &threads[i], nullptr, print_id, (void*)i );
-        if (ret != 0) {
-            break;
-        }
-        n_worker_threads++;
-    }
-
-    std::cout << n_worker_threads << " threads ready to race...\n";
-
-    go();
-
-    for ( size_t i = 1; i < n_worker_threads; i++ ) {
-        pthread_join( threads[i], nullptr );
-    }
-
-    if (n_worker_threads < 1) {
-        return EXIT_FAILURE;
-    }
-
-    return EXIT_SUCCESS;
-}
diff --git a/tests/test-progs/pthread/src/test_pthread_create_para.cpp b/tests/test-progs/pthread/src/test_pthread_create_para.cpp
deleted file mode 100644
index 1b10c9f..0000000
--- a/tests/test-progs/pthread/src/test_pthread_create_para.cpp
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
-  * Copyright (c) 2018, Cornell University
-  * All rights reserved.
-  *
-  * Redistribution and use in source and binary forms, with or
-  * without modification, are permitted provided that the following
-  * conditions are met:
-  *
-  * Redistributions of source code must retain the above copyright
-  * notice, this list of conditions and the following disclaimer.
-  *
-  * Redistributions in binary form must reproduce the above
-  * copyright notice, this list of conditions and the following
-  * disclaimer in the documentation and/or other materials provided
-  * with the distribution.
-  *
-  * Neither the name of Cornell University nor the names of its
-  * contributors may be used to endorse or promote products derived
-  * from this software without specific prior written permission.
-  *
-  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-  * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
-  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
-  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-  * POSSIBILITY OF SUCH DAMAGE.
-  */
-
-#include <pthread.h>
-
-#include <cstdlib>
-#include <iostream>
-
-//------------------------------------------------------------------------
-// Create n threads, run them in parallel and wait for them in the master
-// thread.
-// Each child thread writes its thread id to an output array
-//------------------------------------------------------------------------
-
-#define MAX_N_WORKER_THREADS 10
-
-typedef struct
-{
-    int tid;
-    int* output;
-} ThreadArg;
-
-void* func( void* args )
-{
-    ThreadArg* my_args = ( ThreadArg* ) args;
-
-    // write tid to this thread's output
-    (*my_args->output) = my_args->tid;
-
-    return nullptr;
-}
-
-int main( int argc, const char* argv[] )
-{
-    int n_worker_threads = 0;
-
-    // allocate all threads
-    pthread_t* threads = new pthread_t[MAX_N_WORKER_THREADS];
-    ThreadArg* t_args = new ThreadArg[MAX_N_WORKER_THREADS];
-
-    // create an output array for all threads
-    int* outputs = new int[MAX_N_WORKER_THREADS];
-    int ret;
-
-    // try to spawn as many worker threads as possible
-    for ( int tid = 0; tid < MAX_N_WORKER_THREADS; ++tid ) {
-
-        // set up thread args
-        t_args[tid].tid = tid;
-        t_args[tid].output = outputs + tid;
-
-        // spawn thread
-        ret = pthread_create( threads + tid, nullptr, func, &t_args[tid] );
-        if (ret != 0) {
-            break;
-        }
-
-        n_worker_threads++;
-    }
-
-    // sync up all threads
-    for ( int tid = 0; tid < n_worker_threads; ++tid ) {
-        pthread_join( threads[tid], nullptr );
-    }
-
-    // verify
-    bool passed = true;
-    for ( int i = 0; i < n_worker_threads; ++i ) {
-        if ( outputs[i] != i ) {
-            passed = false;
-        }
-    }
-
-    // clean up
-    delete[] threads;
-    delete[] t_args;
-    delete[] outputs;
-
-    // failed if outputs are not correct or no worker thread was spawned
-    if (!passed || n_worker_threads < 1)
-        return EXIT_FAILURE;
-
-    return EXIT_SUCCESS;
-}
diff --git a/tests/test-progs/pthread/src/test_pthread_create_seq.cpp b/tests/test-progs/pthread/src/test_pthread_create_seq.cpp
deleted file mode 100644
index 2a5a571..0000000
--- a/tests/test-progs/pthread/src/test_pthread_create_seq.cpp
+++ /dev/null
@@ -1,114 +0,0 @@
-/*
-  * Copyright (c) 2018, Cornell University
-  * All rights reserved.
-  *
-  * Redistribution and use in source and binary forms, with or
-  * without modification, are permitted provided that the following
-  * conditions are met:
-  *
-  * Redistributions of source code must retain the above copyright
-  * notice, this list of conditions and the following disclaimer.
-  *
-  * Redistributions in binary form must reproduce the above
-  * copyright notice, this list of conditions and the following
-  * disclaimer in the documentation and/or other materials provided
-  * with the distribution.
-  *
-  * Neither the name of Cornell University nor the names of its
-  * contributors may be used to endorse or promote products derived
-  * from this software without specific prior written permission.
-  *
-  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-  * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
-  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
-  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-  * POSSIBILITY OF SUCH DAMAGE.
-  */
-
-#include <pthread.h>
-
-#include <cstdlib>
-#include <iostream>
-
-//------------------------------------------------------------------------
-// Create n threads and run them one after another
-// Each child thread writes its thread id to an output array
-//------------------------------------------------------------------------
-
-#define MAX_N_WORKER_THREADS 10
-
-typedef struct
-{
-    int tid;
-    int* output;
-} ThreadArg;
-
-void* func( void* args )
-{
-    ThreadArg* my_args = ( ThreadArg* ) args;
-
-    // write tid to this thread's output
-    (*my_args->output) = my_args->tid;
-
-    return nullptr;
-}
-
-int main( int argc, const char* argv[] )
-{
-    int n_worker_threads = 0;
-
-    // allocate all threads
-    pthread_t* threads = new pthread_t[MAX_N_WORKER_THREADS];
-    ThreadArg* t_args = new ThreadArg[MAX_N_WORKER_THREADS];
-
-    // create an output array for all threads
-    int* outputs = new int[MAX_N_WORKER_THREADS];
-    int ret;
-
-    // try to spawn as many worker threads as possible
-    for ( int tid = 0; tid < MAX_N_WORKER_THREADS; ++tid ) {
-
-        // set up thread args
-        t_args[tid].tid = tid;
-        t_args[tid].output = outputs + tid;
-
-        // spawn thread
-        ret = pthread_create( threads + tid, nullptr, func, &t_args[tid] );
-        if (ret != 0 ) {
-            break;
-        }
-
-        n_worker_threads++;
-
-        // wait for the thread to join before moving on
-        pthread_join( threads[tid], nullptr );
-    }
-
-    // verify
-    bool passed = true;
-    for ( int i = 0; i < n_worker_threads; ++i ) {
-        if ( outputs[i] != i ) {
-            passed = false;
-            break;
-        }
-    }
-
-    // clean up
-    delete[] threads;
-    delete[] t_args;
-    delete[] outputs;
-
-    // failed if outputs are not correct or no worker thread was spawned
-    if (!passed || n_worker_threads < 1)
-        return EXIT_FAILURE;
-
-    return EXIT_SUCCESS;
-}
diff --git a/tests/test-progs/pthread/src/test_pthread_mutex.cpp b/tests/test-progs/pthread/src/test_pthread_mutex.cpp
deleted file mode 100644
index 313539b..0000000
--- a/tests/test-progs/pthread/src/test_pthread_mutex.cpp
+++ /dev/null
@@ -1,131 +0,0 @@
-/*
-  * Copyright (c) 2018, Cornell University
-  * All rights reserved.
-  *
-  * Redistribution and use in source and binary forms, with or
-  * without modification, are permitted provided that the following
-  * conditions are met:
-  *
-  * Redistributions of source code must retain the above copyright
-  * notice, this list of conditions and the following disclaimer.
-  *
-  * Redistributions in binary form must reproduce the above
-  * copyright notice, this list of conditions and the following
-  * disclaimer in the documentation and/or other materials provided
-  * with the distribution.
-  *
-  * Neither the name of Cornell University nor the names of its
-  * contributors may be used to endorse or promote products derived
-  * from this software without specific prior written permission.
-  *
-  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-  * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
-  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
-  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-  * POSSIBILITY OF SUCH DAMAGE.
-  */
-
-#include <pthread.h>
-
-#include <cstdlib>
-#include <iostream>
-
-//------------------------------------------------------------------------
-// Create n threads, run them in parallel and wait for them in the master
-// thread.
-// Each child thread increments a shared variable m times
-//------------------------------------------------------------------------
-
-#define MAX_N_WORKER_THREADS 10
-
-typedef struct
-{
-    int nsteps;
-    int* shared_var;
-    pthread_mutex_t* lock;
-} ThreadArg;
-
-void* func( void* args )
-{
-    ThreadArg* my_args = ( ThreadArg* ) args;
-
-    int nsteps = my_args->nsteps;
-    int* shared_var = my_args->shared_var;
-    pthread_mutex_t* lock = my_args->lock;
-
-    for ( int i = 0; i < nsteps; ++i ) {
-        // acquire the lock
-        pthread_mutex_lock(lock);
-
-        // increment the shared_var
-        (*shared_var)++;
-
-        // release the lock
-        pthread_mutex_unlock(lock);
-    }
-
-    return nullptr;
-}
-
-int main( int argc, const char* argv[] )
-{
-    int n_worker_threads = 0;
-
-    // allocate all threads
-    pthread_t* threads = new pthread_t[MAX_N_WORKER_THREADS];
-    ThreadArg* t_args = new ThreadArg[MAX_N_WORKER_THREADS];
-
-    // variable shared among all threads
-    int shared_var = 0;
-
-    // number of steps each thread increments the shared_var
-    int nsteps = 10000;
-
-    // create a shared lock
-    pthread_mutex_t lock;
-    pthread_mutex_init(&lock, NULL);
-
-    int ret;
-
-    // try to spawn as many worker threads as possible
-    for ( int tid = 0; tid < MAX_N_WORKER_THREADS; ++tid ) {
-        t_args[tid].nsteps = nsteps;
-        t_args[tid].shared_var = &shared_var;
-        t_args[tid].lock = &lock;
-
-        // spawn thread
-        ret = pthread_create( threads + tid, nullptr, func, &t_args[tid] );
-
-        if (ret != 0)
-            break;
-
-        n_worker_threads++;
-    }
-
-    // sync up all threads
-    for ( int tid = 0; tid < n_worker_threads; ++tid ) {
-        pthread_join( threads[tid], nullptr );
-    }
-
-    // verify
-    bool passed = true;
-    if ( shared_var != n_worker_threads * nsteps )
-        passed = false;
-
-    // clean up
-    delete[] threads;
-    delete[] t_args;
-
-    if (!passed || n_worker_threads < 1)
-        return EXIT_FAILURE;
-
-    return EXIT_SUCCESS;
-}
diff --git a/tests/test-progs/pthread/src/test_std_condition_variable.cpp b/tests/test-progs/pthread/src/test_std_condition_variable.cpp
deleted file mode 100644
index b3d162d..0000000
--- a/tests/test-progs/pthread/src/test_std_condition_variable.cpp
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
-  * Copyright (c) 2018, Cornell University
-  * All rights reserved.
-  *
-  * Redistribution and use in source and binary forms, with or
-  * without modification, are permitted provided that the following
-  * conditions are met:
-  *
-  * Redistributions of source code must retain the above copyright
-  * notice, this list of conditions and the following disclaimer.
-  *
-  * Redistributions in binary form must reproduce the above
-  * copyright notice, this list of conditions and the following
-  * disclaimer in the documentation and/or other materials provided
-  * with the distribution.
-  *
-  * Neither the name of Cornell University nor the names of its
-  * contributors may be used to endorse or promote products derived
-  * from this software without specific prior written permission.
-  *
-  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-  * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
-  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
-  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-  * POSSIBILITY OF SUCH DAMAGE.
-  */
-
-#include <condition_variable>
-#include <iostream>
-#include <mutex>
-#include <thread>
-#include <vector>
-
-//------------------------------------------------------------------------
-// Test std::condition_variable
-//------------------------------------------------------------------------
-// The master thread creates N threads, each of which waits on a
-// condition variable of a signal to start. The master thread then set
-// the signal and notifies all other threads to begin.
-
-#define MAX_N_WORKER_THREADS 10
-
-std::mutex mtx;
-std::condition_variable cv;
-bool ready = false;
-
-void print_id( size_t id )
-{
-    std::unique_lock<std::mutex> lck(mtx);
-    while (!ready)
-        cv.wait(lck);
-    // ...
-    std::cout << "thread " << id << '\n';
-}
-
-void go()
-{
-    std::unique_lock<std::mutex> lck(mtx);
-    ready = true;
-    cv.notify_all();
-}
-
-int main( int argc, char* argv[] )
-{
-    size_t n_worker_threads = 0;
-
-    std::vector< std::thread > threads;
-
-    for ( size_t i = 0; i < MAX_N_WORKER_THREADS; i++ ) {
-        try {
-            threads.push_back( std::thread( print_id, i ) );
-        } catch ( const std::system_error& err ) {
-            break;
-        }
-        n_worker_threads++;
-    }
-
-    std::cout << n_worker_threads << " threads ready to race...\n";
-    go();                       // go!
-
-    for (int i = 0; i < n_worker_threads; ++i) {
-        threads[i].join();
-    }
-
-    // if there is no timeout (i.e., threads are all waken up properly, this
-    // test always succeeds)
-    return EXIT_SUCCESS;
-}
diff --git a/tests/test-progs/pthread/src/test_std_mutex.cpp b/tests/test-progs/pthread/src/test_std_mutex.cpp
deleted file mode 100644
index e81f60f..0000000
--- a/tests/test-progs/pthread/src/test_std_mutex.cpp
+++ /dev/null
@@ -1,90 +0,0 @@
-/*
-  * Copyright (c) 2018, Cornell University
-  * All rights reserved.
-  *
-  * Redistribution and use in source and binary forms, with or
-  * without modification, are permitted provided that the following
-  * conditions are met:
-  *
-  * Redistributions of source code must retain the above copyright
-  * notice, this list of conditions and the following disclaimer.
-  *
-  * Redistributions in binary form must reproduce the above
-  * copyright notice, this list of conditions and the following
-  * disclaimer in the documentation and/or other materials provided
-  * with the distribution.
-  *
-  * Neither the name of Cornell University nor the names of its
-  * contributors may be used to endorse or promote products derived
-  * from this software without specific prior written permission.
-  *
-  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-  * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
-  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
-  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-  * POSSIBILITY OF SUCH DAMAGE.
-  */
-
-#include <cstdlib>
-#include <iostream>
-#include <mutex>
-#include <thread>
-#include <vector>
-
-//------------------------------------------------------------------------
-// Create n threads, run them in parallel and wait for them in the master
-// thread.
-// Each child thread increments a shared variable m times
-//------------------------------------------------------------------------
-
-#define MAX_N_WORKER_THREADS 10
-
-int main( int argc, const char* argv[] )
-{
-    int n_worker_threads = 0;
-
-    // allocate all threads
-    std::vector< std::thread > threads;
-
-    // mutex to protect the shared variable
-    std::mutex my_mutex;
-
-    // variable shared among all threads
-    int shared_var = 0;
-
-    // number of steps each thread increments the shared_var
-    int nsteps = 1000;
-
-    for ( int tid = 0; tid < MAX_N_WORKER_THREADS; ++tid ) {
-        try {
-            threads.push_back( std::thread( [&] {
-                        std::lock_guard<std::mutex> guard(my_mutex);
-                        for ( int i = 0; i < nsteps; ++i )
-                            shared_var++;
-                    } ) );
-        } catch ( const std::system_error& err ) {
-            break;
-        }
-        n_worker_threads++;
-    }
-
-    // sync up all threads
-    for (int i = 0; i < n_worker_threads; ++i) {
-        threads[i].join();
-    }
-
-    // verify
-    if ( shared_var != n_worker_threads * nsteps || n_worker_threads < 1) {
-        return EXIT_FAILURE;
-    }
-
-    return EXIT_SUCCESS;
-}
diff --git a/tests/test-progs/pthread/src/test_std_thread.cpp b/tests/test-progs/pthread/src/test_std_thread.cpp
deleted file mode 100644
index 6634d90..0000000
--- a/tests/test-progs/pthread/src/test_std_thread.cpp
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
-  * Copyright (c) 2018, Cornell University
-  * All rights reserved.
-  *
-  * Redistribution and use in source and binary forms, with or
-  * without modification, are permitted provided that the following
-  * conditions are met:
-  *
-  * Redistributions of source code must retain the above copyright
-  * notice, this list of conditions and the following disclaimer.
-  *
-  * Redistributions in binary form must reproduce the above
-  * copyright notice, this list of conditions and the following
-  * disclaimer in the documentation and/or other materials provided
-  * with the distribution.
-  *
-  * Neither the name of Cornell University nor the names of its
-  * contributors may be used to endorse or promote products derived
-  * from this software without specific prior written permission.
-  *
-  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-  * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
-  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
-  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-  * POSSIBILITY OF SUCH DAMAGE.
-  */
-
-#include <cstdlib>
-#include <iostream>
-#include <string>
-#include <thread>
-#include <vector>
-
-//------------------------------------------------------------------------
-// Test std::thread
-//------------------------------------------------------------------------
-// Create n threads, run them in parallel and wait for them in the master
-// thread.
-// Each child thread writes its thread id to an output array
-
-#define MAX_N_WORKER_THREADS 10
-
-int main( int argc, char* argv[] )
-{
-    int n_worker_threads = 0;
-
-    std::vector< std::thread > threads;
-    std::vector<int> outputs( MAX_N_WORKER_THREADS, 0 );
-
-    for ( int tid = 0; tid < MAX_N_WORKER_THREADS; ++tid ) {
-        try {
-            threads.push_back( std::thread( [&] (size_t thread_id ) {
-                        std::cout << "Hello from thread " <<  thread_id
-                                  << std::endl;
-                        outputs[thread_id] = thread_id;
-                    }, tid ) );
-        } catch ( const std::system_error& err ) {
-            break;
-        }
-        n_worker_threads++;
-    }
-
-    std::cout << "Hello from master thread" << std::endl;
-
-    // sync up all threads
-    for (int i = 0; i < n_worker_threads; ++i) {
-        threads[i].join();
-    }
-
-    if (n_worker_threads < 1) {
-        return EXIT_FAILURE;
-    }
-
-    for ( int i = 0; i < n_worker_threads; ++i ) {
-        if ( outputs[i] != i ) {
-            return EXIT_FAILURE;
-        }
-    }
-
-    return EXIT_SUCCESS;
-}