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

       1988-2025, LibTIFF contributors

4.5                                               Sep 24, 2025                                 TIFFMEMORY(3tiff)