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* posix/regex.c (EXTEND_BUFFER): Compute increment once. 

Move all three components of a bounded pointer.
2000-07-07  Greg McGary  <greg@mcgary.org>

	* posix/regex.c (EXTEND_BUFFER): Compute increment once.
	Move all three components of a bounded pointer.
This commit is contained in:
Greg McGary 2000-07-07 07:53:40 +00:00
parent 89a4f6ff1f
commit 8ccd2cb191
2 changed files with 23 additions and 11 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2000-07-07 Greg McGary <greg@mcgary.org>
* posix/regex.c (EXTEND_BUFFER): Compute increment once.
Move all three components of a bounded pointer.
2000-07-07 Ulrich Drepper <drepper@redhat.com>
* locale/programs/locale.c (write_locales): Don't simply add all

17
posix/regex.c
View File

@ -1747,6 +1747,12 @@ static reg_errcode_t compile_range _RE_ARGS ((unsigned int range_start,
reset the pointers that pointed into the old block to point to the
correct places in the new one. If extending the buffer results in it
being larger than MAX_BUF_SIZE, then flag memory exhausted. */
#if __BOUNDED_POINTERS__
# define MOVE_BUFFER_POINTER(P) \
(__ptrlow (P) += incr, __ptrhigh (P) += incr, __ptrvalue (P) += incr)
#else
# define MOVE_BUFFER_POINTER(P) (P) += incr
#endif
#define EXTEND_BUFFER() \
do { \
unsigned char *old_buffer = bufp->buffer; \
@ -1761,14 +1767,15 @@ static reg_errcode_t compile_range _RE_ARGS ((unsigned int range_start,
/* If the buffer moved, move all the pointers into it. */ \
if (old_buffer != bufp->buffer) \
{ \
b = (b - old_buffer) + bufp->buffer; \
begalt = (begalt - old_buffer) + bufp->buffer; \
int incr = bufp->buffer - old_buffer; \
MOVE_BUFFER_POINTER (b); \
MOVE_BUFFER_POINTER (begalt); \
if (fixup_alt_jump) \
fixup_alt_jump = (fixup_alt_jump - old_buffer) + bufp->buffer;\
MOVE_BUFFER_POINTER (fixup_alt_jump); \
if (laststart) \
laststart = (laststart - old_buffer) + bufp->buffer; \
MOVE_BUFFER_POINTER (laststart); \
if (pending_exact) \
pending_exact = (pending_exact - old_buffer) + bufp->buffer; \
MOVE_BUFFER_POINTER (pending_exact); \
} \
} while (0)