pdftops/gmem.h

   1 /*
   2  * gmem.h
   3  *
   4  * Memory routines with out-of-memory checking.
   5  *
   6  * Copyright 1996-2003 Glyph & Cog, LLC
   7  */
   8
   9 #ifndef GMEM_H
  10 #define GMEM_H
  11
  12 #include <stdio.h>
  13
  14 #ifdef __cplusplus
  15 extern "C" {
  16 #endif
  17
  18 /*
  19  * Same as malloc, but prints error message and exits if malloc()
  20  * returns NULL.
  21  */
  22 extern void *gmalloc(int size);
  23
  24 /*
  25  * Same as realloc, but prints error message and exits if realloc()
  26  * returns NULL.  If <p> is NULL, calls malloc instead of realloc().
  27  */
  28 extern void *grealloc(void *p, int size);
  29
  30 /*
  31  * These are similar to gmalloc and grealloc, but take an object count
  32  * and size.  The result is similar to allocating nObjs * objSize
  33  * bytes, but there is an additional error check that the total size
  34  * doesn't overflow an int.
  35  */
  36 extern void *gmallocn(int nObjs, int objSize);
  37 extern void *greallocn(void *p, int nObjs, int objSize);
  38
  39 /*
  40  * Same as free, but checks for and ignores NULL pointers.
  41  */
  42 extern void gfree(void *p);
  43
  44 #ifdef DEBUG_MEM
  45 /*
  46  * Report on unfreed memory.
  47  */
  48 extern void gMemReport(FILE *f);
  49 #else
  50 #define gMemReport(f)
  51 #endif
  52
  53 /*
  54  * Allocate memory and copy a string into it.
  55  */
  56 extern char *copyString(char *s);
  57
  58 #ifdef __cplusplus
  59 }
  60 #endif
  61
  62 #endif