TIFFmemory¶
Synopsis¶
#include <tiffio.h>
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tdata_t _TIFFmalloc(tsize_t size)¶
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tdata_t _TIFFrealloc(tdata_t buffer, tsize_t size)¶
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void _TIFFfree(tdata_t buffer)¶
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void _TIFFmemset(tdata_t s, int c, tsize_t n)¶
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void _TIFFmemcpy(tdata_t dest, const tdata_t src, tsize_t n)¶
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int _TIFFmemcmp(const tdata_t s1, const tdata_ts2, tsize_t n)¶
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void *_TIFFCheckMalloc(TIFF *tif, tmsize_t nmemb, tmsize_t elem_size, const char *what)¶
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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.