60 lines
1.0 KiB
C
60 lines
1.0 KiB
C
#include "postgres.h"
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#include "private.h"
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#define nonzero(n) (((n) == 0) ? 1 : (n))
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char *imalloc(const int n)
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{
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return malloc((size_t) nonzero(n));
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}
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char *icalloc(int nelem, int elsize)
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{
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if (nelem == 0 || elsize == 0)
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nelem = elsize = 1;
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return calloc((size_t) nelem, (size_t) elsize);
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}
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void *irealloc(void *pointer, const int size)
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{
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if (pointer == NULL)
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return imalloc(size);
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return realloc((void *) pointer, (size_t) nonzero(size));
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}
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char *icatalloc(char *old, const char *new)
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{
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register char * result;
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register int oldsize, newsize;
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newsize = (new == NULL) ? 0 : strlen(new);
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if (old == NULL)
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oldsize = 0;
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else if (newsize == 0)
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return old;
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else oldsize = strlen(old);
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if ((result = irealloc(old, oldsize + newsize + 1)) != NULL)
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if (new != NULL)
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(void) strcpy(result + oldsize, new);
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return result;
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}
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char *icpyalloc(const char *string)
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{
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return icatalloc((char *) NULL, string);
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}
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void ifree(char *p)
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{
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if (p != NULL)
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(void) free(p);
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}
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void icfree(char *p)
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{
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if (p != NULL)
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(void) free(p);
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}
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