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fix compile_rx_or_error

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compile_rx_or_error looks like a constructor, but it can return NULL.
This patch changes it to remove the NULL return, making it work
like any other cleanup constructor.

This is a stylistic patch but I think it is also better for code to
follow the normal conventions.

	* probe.c (collect_probes): Check arguments for NULL before
	calling compile_rx_or_error.
	* utils.c (compile_rx_or_error): Require 'rx' to be non-NULL.
	Remove NULL return.
This commit is contained in:
Tom Tromey
2013-05-30 17:39:34 +00:00
parent 77f9e71302
commit db26349c64
3 changed files with 16 additions and 7 deletions
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7
gdb/utils.c
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@@ -1127,16 +1127,15 @@ get_regcomp_error (int code, regex_t *rx)
}
/* Compile a regexp and throw an exception on error. This returns a
cleanup to free the resulting pattern on success. If RX is NULL,
this does nothing and returns NULL. */
cleanup to free the resulting pattern on success. RX must not be
NULL. */
struct cleanup *
compile_rx_or_error (regex_t *pattern, const char *rx, const char *message)
{
int code;
if (!rx)
return NULL;
gdb_assert (rx != NULL);
code = regcomp (pattern, rx, REG_NOSUB);
if (code != 0)