| .TH IM_ISINT 3 "11 April 1990" |
| .SH NAME |
| im_isint, im_isuint, im_isfloat, im_isscalar, im_iscomplex, |
| im_isfile, im_ispartial, im_isvips, im_isMSBfirst, |
| im_fexists, im_amiMSBfirst \- classify image types |
| .SH SYNOPSIS |
| .B #include <vips/vips.h> |
| |
| int im_isMSBfirst( im ) |
| .br |
| IMAGE *im; |
| |
| int im_amiMSBfirst( void ) |
| |
| int im_fexists( const char *filename, ... ) |
| |
| int im_isvips( filename ) |
| .br |
| char *filename; |
| |
| int im_isfile( im ) |
| .br |
| IMAGE *im; |
| |
| int im_ispartial( im ) |
| .br |
| IMAGE *im; |
| |
| int im_isint( im ) |
| .br |
| IMAGE *im; |
| |
| int im_isuint( im ) |
| .br |
| IMAGE *im; |
| |
| int im_isfloat( im ) |
| .br |
| IMAGE *im; |
| |
| int im_isscalar( im ) |
| .br |
| IMAGE *im; |
| |
| int im_iscomplex( im ) |
| .br |
| IMAGE *im; |
| |
| .SH DESCRIPTION |
| im_fexists(3) returns non-zero if the named file exists and is readable. Args |
| as printf(3). |
| |
| im_isvips(3) tests a file for vips-ness. |
| |
| im_isMSBfirst(3) returns true (1) if the file is in most-significant-byte first |
| form. This is the byte order used on the SPARC architecture, and others. It |
| returns false (0)for intel-order images. |
| |
| im_amiMSBfirst(3) returns true (1) if this processor is MSB first. |
| |
| im_isfile(3) returns true if the descriptor corresponds to some disc object, |
| that is, was opened with modes "r", "rw" or "w". |
| |
| im_ispartial(3) returns true if the descriptor is partial, |
| that is, was opened with mode "p". |
| |
| The rest of these functions test im\-\>BandFmt, returning logical truth |
| (non-zero) if BandFmt is one of a number of possibles, and returning zero if |
| it is not. |
| |
| im_isint(3) (is integer type) returns true if im\-\>BandFmt is one of FMTUCHAR, |
| FMTCHAR, FMTUSHORT, FMTSHORT, FMTUINT or FMTINT. |
| |
| im_isuint(3) (is unsigned integer type) returns true if im\-\>BandFmt is one of |
| FMTUCHAR, FMTUSHORT or FMTUINT. |
| |
| im_isfloat(3) (is floating point type) returns true if im\-\>BandFmt is one of |
| FMTFLOAT or FMTDOUBLE. |
| |
| im_isscalar(3) (is scalar type) returns true if im\-\>BandFmt is one of FMTUCHAR, |
| FMTCHAR, FMTUSHORT, FMTSHORT, FMTUINT, FMTINT, FMTFLOAT or FMTDOUBLE. |
| |
| im_iscomplex(3) (is complex type) returns true if im\-\>BandFmt is one of |
| FMTCOMPLEX or FMTDPCOMPLEX. |
| |
| .SH COPYRIGHT |
| National Gallery, 1993 |
| .SH SEE ALSO |
| im_tiff2vips(3), im_jpeg2vips(3) |
| .SH AUTHOR |
| J. Cupitt \- 23/7/93 |
