NAME

       TIFFmemory - memory management-related functions for use with TIFF files

SYNOPSIS

          #include <tiffio.h>

       tdata_t _TIFFmalloc(tsize_t size)

       tdata_t _TIFFrealloc(tdata_t buffer, tsize_t size)

       void _TIFFfree(tdata_t buffer)

       void _TIFFmemset(tdata_t s, int c, tsize_t n)

       void _TIFFmemcpy(tdata_t dest, const tdata_t src, tsize_t n)

       int _TIFFmemcmp(const tdata_t s1, const tdata_ts2, tsize_t n)

       void *_TIFFCheckMalloc(TIFF *tif, tmsize_t nmemb, tmsize_t elem_size, const char *what)

       void *_TIFFCheckRealloc(TIFF *tif, void *buffer, tmsize_t nmemb, tmsize_t elem_size, const
       char *what)

DESCRIPTION

       These routines are provided for writing portable software that uses libtiff; they hide any
       memory-management  related  issues,  such as dealing with segmented architectures found on
       16-bit machines.

       _TIFFmalloc() and _TIFFrealloc() are used to dynamically allocate  and  reallocate  memory
       used  by  libtiff;  such  as memory passed into the I/O routines. Memory allocated through
       these interfaces is released back to the system using the _TIFFfree() routine.

       Memory allocated through one of the above interfaces can be set to  a  known  value  using
       _TIFFmemset(),  copied  to  another  memory  location using _TIFFmemcpy(), or compared for
       equality using _TIFFmemcmp().  These  routines  conform  to  the  equivalent  C  routines:
       memset(), memcpy(), memcmp(), respectively.

       _TIFFCheckMalloc()  and  _TIFFCheckRealloc()  are  checking  for  integer  overflow before
       calling _TIFFmalloc() and _TIFFrealloc(), respectively.

DIAGNOSTICS

       None.

SEE ALSO

       malloc (3), memory (3), libtiff (3tiff)

AUTHOR

       LibTIFF contributors

COPYRIGHT

       1988-2024, LibTIFF contributors