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Bug 548612 – g_strstr_len() should use memmem when available

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2008-08-28  Bastien Nocera  <hadess@hadess.net>

	Bug 548612 – g_strstr_len() should use memmem when available

	* glib/tests/strfuncs.c (test_strstr):
	* tests/string-test.c (main): Patch by Paolo Borelli
	<pborelli@katamail.com> to move the tests to the right place,
	and add more tests

	* glib/gstrfuncs.c (g_strstr_len): Fix problem with memmem ignoring
	nul-terminators in strings, and using the haystack_len instead


svn path=/trunk/; revision=7409
This commit is contained in:
Bastien Nocera 2008-08-28 12:53:59 +00:00 committed by Bastien Nocera
parent 3feaad58e6
commit f84518e35b
4 changed files with 44 additions and 6 deletions
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12
ChangeLog
View File

@ -1,3 +1,15 @@
2008-08-28 Bastien Nocera <hadess@hadess.net>
Bug 548612 – g_strstr_len() should use memmem when available
* glib/tests/strfuncs.c (test_strstr):
* tests/string-test.c (main): Patch by Paolo Borelli
<pborelli@katamail.com> to move the tests to the right place,
and add more tests
* glib/gstrfuncs.c (g_strstr_len): Fix problem with memmem ignoring
nul-terminators in strings, and using the haystack_len instead
2008-08-28 Bastien Nocera <hadess@hadess.net>
Bug 548612 – g_strstr_len() should use memmem when available

5
glib/gstrfuncs.c
View File

@ -2603,7 +2603,10 @@ g_strstr_len (const gchar *haystack,
else
{
#ifdef HAVE_MEMMEM
return memmem (haystack, haystack_len, needle, strlen (needle));
size_t len;
len = MIN(haystack_len, strlen (haystack));
return memmem (haystack, len, needle, strlen (needle));
#else
const gchar *p = haystack;
gsize needle_len = strlen (needle);

28
glib/tests/strfuncs.c
View File

@ -556,10 +556,19 @@ test_strstr (void)
res = g_strstr_len (haystack, 6, "FooBarFooBarFooBar");
g_assert (res == NULL);
res = g_strstr_len (haystack, 3, "Bar");
g_assert (res == NULL);
res = g_strstr_len (haystack, 6, "");
g_assert (res == haystack);
g_assert_cmpstr (res, ==, "FooBarFooBarFoo");
res = g_strstr_len (haystack, 6, "Bar");
g_assert (res == haystack + 3);
g_assert_cmpstr (res, ==, "BarFooBarFoo");
res = g_strstr_len (haystack, -1, "Bar");
g_assert (res == haystack + 3);
g_assert_cmpstr (res, ==, "BarFooBarFoo");
/* strrstr */
@ -571,8 +580,10 @@ test_strstr (void)
res = g_strrstr (haystack, "");
g_assert (res == haystack);
g_assert_cmpstr (res, ==, "FooBarFooBarFoo");
res = g_strrstr (haystack, "Bar");
g_assert (res == haystack + 9);
g_assert_cmpstr (res, ==, "BarFoo");
/* strrstr_len */
@ -582,9 +593,26 @@ test_strstr (void)
res = g_strrstr_len (haystack, 14, "FooBarFooBarFooBar");
g_assert (res == NULL);
res = g_strrstr_len (haystack, 3, "Bar");
g_assert (res == NULL);
res = g_strrstr_len (haystack, 14, "BarFoo");
g_assert (res == haystack + 3);
g_assert_cmpstr (res, ==, "BarFooBarFoo");
res = g_strrstr_len (haystack, 15, "BarFoo");
g_assert (res == haystack + 9);
g_assert_cmpstr (res, ==, "BarFoo");
res = g_strrstr_len (haystack, -1, "BarFoo");
g_assert (res == haystack + 9);
g_assert_cmpstr (res, ==, "BarFoo");
/* test case for strings with \0 in the middle */
*(haystack + 7) = '\0';
res = g_strstr_len (haystack, 15, "BarFoo");
g_assert (res == NULL);
g_free (haystack);
}

5
tests/string-test.c
View File

@ -307,11 +307,6 @@ main (int argc,
g_assert (strcmp (tmp_string, "b a") == 0);
g_free (tmp_string);
tmp_string = g_strdup (GLIB_TEST_STRING);
g_assert (g_strstr_len (tmp_string, 4, "rado") == NULL);
g_assert (g_strstr_len (tmp_string, -1, "rado") == tmp_string + 5);
g_free (tmp_string);
return 0;
}