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Added VCHECK compile time option that fills allocated and freed blocks

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with garbage.
This commit is contained in:
Jack Jansen
1996-09-30 14:42:28 +00:00
parent e86cbc43f2
commit 05cf7e040b
1 changed files with 7 additions and 0 deletions
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7
Mac/mwerks/malloc/malloc.c
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@@ -57,6 +57,7 @@ static char *rcsid = "$Id$";
#define DEBUG2
#define MSTATS
#define RCHECK
#define VCHECK
typedef unsigned char u_char;
typedef unsigned long u_long;
@@ -221,6 +222,9 @@ malloc(nbytes)
op->ov_size = (nbytes + RSLOP - 1) & ~(RSLOP - 1);
op->ov_rmagic = RMAGIC;
*(u_short *)((caddr_t)(op + 1) + op->ov_size) = RMAGIC;
#endif
#ifdef VCHECK
memset((char *)(op+1), 0x41, nbytes);
#endif
return ((char *)(op + 1));
}
@@ -286,6 +290,9 @@ free(cp)
#ifdef RCHECK
ASSERT(op->ov_rmagic == RMAGIC);
ASSERT(*(u_short *)((caddr_t)(op + 1) + op->ov_size) == RMAGIC);
#endif
#ifdef VCHECK
memset(cp, 43, op->ov_size);
#endif
size = op->ov_index;
if ( size == 0xff ) {