TIFFMEMORY(3tiff) LibTIFF TIFFMEMORY(3tiff)

NAME

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

SYNOPSIS

#include <tiffio.h>

void *_TIFFmalloc(tmsize_t size)

void *_TIFFrealloc(void *buffer, tmsize_t size)

void _TIFFfree(void *buffer)

void _TIFFmemset(void *s, int c, tmsize_t n)

void _TIFFmemcpy(void *dest, const void *src, tmsize_t n)

int _TIFFmemcmp(const void *s1, const void *s2, tmsize_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

4.7 March 7, 2026 TIFFMEMORY(3tiff)