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[BZ #2766]
2006-06-14 Jakub Jelinek <jakub@redhat.com> [BZ #2766] * misc/insremque.c (insque): Handle prev == NULL. * misc/Makefile (tests): Add tst-insremque. * misc/tst-insremque.c: New test.
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Ulrich Drepper
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Jun 17, 2006
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,61 @@ | ||
#include <search.h> | ||
#include <stdio.h> | ||
#include <string.h> | ||
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#define CHECK(cond) \ | ||
do \ | ||
if (! (cond)) \ | ||
{ \ | ||
printf ("Condition " #cond " not true on line %d\n", __LINE__); \ | ||
ret = 1; \ | ||
} \ | ||
while (0) | ||
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static int | ||
do_test (void) | ||
{ | ||
struct qelem elements[4]; | ||
int ret = 0; | ||
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/* Linear list. */ | ||
memset (elements, 0xff, sizeof (elements)); | ||
insque (&elements[0], NULL); | ||
remque (&elements[0]); | ||
insque (&elements[0], NULL); | ||
insque (&elements[2], &elements[0]); | ||
insque (&elements[1], &elements[0]); | ||
insque (&elements[3], &elements[2]); | ||
remque (&elements[2]); | ||
insque (&elements[2], &elements[0]); | ||
CHECK (elements[0].q_back == NULL); | ||
CHECK (elements[0].q_forw == &elements[2]); | ||
CHECK (elements[1].q_back == &elements[2]); | ||
CHECK (elements[1].q_forw == &elements[3]); | ||
CHECK (elements[2].q_back == &elements[0]); | ||
CHECK (elements[2].q_forw == &elements[1]); | ||
CHECK (elements[3].q_back == &elements[1]); | ||
CHECK (elements[3].q_forw == NULL); | ||
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/* Circular list. */ | ||
memset (elements, 0xff, sizeof (elements)); | ||
elements[0].q_back = &elements[0]; | ||
elements[0].q_forw = &elements[0]; | ||
insque (&elements[2], &elements[0]); | ||
insque (&elements[1], &elements[0]); | ||
insque (&elements[3], &elements[2]); | ||
remque (&elements[2]); | ||
insque (&elements[2], &elements[0]); | ||
CHECK (elements[0].q_back == &elements[3]); | ||
CHECK (elements[0].q_forw == &elements[2]); | ||
CHECK (elements[1].q_back == &elements[2]); | ||
CHECK (elements[1].q_forw == &elements[3]); | ||
CHECK (elements[2].q_back == &elements[0]); | ||
CHECK (elements[2].q_forw == &elements[1]); | ||
CHECK (elements[3].q_back == &elements[1]); | ||
CHECK (elements[3].q_forw == &elements[0]); | ||
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return ret; | ||
} | ||
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#define TEST_FUNCTION do_test () | ||
#include "../test-skeleton.c" |