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Add tests for memcmp and fix a teeny tiny bug

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This commit is contained in:
jD91mZM2
2018-10-09 16:47:57 +02:00
parent 3f4fbf9084
commit 0469c0c2c6
3 changed files with 37 additions and 18 deletions
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tests/string/mem.c
+35 -17
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@@ -3,22 +3,40 @@
#include <string.h>
int main(int argc, char ** argv) {
printf("# mem #\n");
char arr[100];
memset(arr, 0, 100); // Compiler builtin, should work
arr[50] = 1;
if ((size_t)memchr((void *)arr, 1, 100) - (size_t)arr != 50) {
printf("Incorrect memchr\n");
exit(1);
}
printf("Correct memchr\n");
char arr2[51];
memset(arr2, 0, 51); // Compiler builtin, should work
memccpy((void *)arr2, (void *)arr, 1, 100);
if (arr[50] != 1) {
printf("Incorrect memccpy\n");
exit(1);
}
printf("Correct memccpy\n");
puts("# mem #");
char arr[100];
memset(arr, 0, 100); // Compiler builtin, should work
arr[50] = 1;
if ((size_t)memchr((void *)arr, 1, 100) - (size_t)arr != 50) {
puts("Incorrect memchr");
exit(1);
}
puts("Correct memchr");
char arr2[51];
memset(arr2, 0, 51); // Compiler builtin, should work
memccpy((void *)arr2, (void *)arr, 1, 100);
if (arr[50] != 1) {
puts("Incorrect memccpy");
exit(1);
}
puts("Correct memccpy");
int res;
if ((res = memcmp("hello world", "hello world", 11))) {
printf("Incorrect memcmp (1), expected 0 found %d\n", res);
exit(1);
}
if ((res = memcmp("hello world", "hello worlt", 11)) >= 0) {
printf("Incorrect memcmp (2), expected -, found %d\n", res);
exit(1);
}
if ((res = memcmp("hello world", "hallo world", 5)) <= 0) {
printf("Incorrect memcmp (3), expected +, found %d\n", res);
exit(1);
}
if ((res = memcmp("hello world", "henlo world", 5)) >= 0) {
printf("Incorrect memcmp (4), expected -, found %d\n", res);
exit(1);
}
puts("Correct memcmp");
return 0;
}