frederik
/
libxcb
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Bug #9119: test xcb_popcount

This commit is contained in:
Ian Osgood 2006-11-25 11:00:14 -08:00
parent 05d23a724d
commit e74cdcd02e
1 changed files with 24 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
tests/check_public.c
View File

@ -3,6 +3,7 @@
#include <stdlib.h>
#include "check_suites.h"
#include "xcb.h"
#include "xcbext.h"
/* xcb_parse_display tests {{{ */
@ -179,6 +180,28 @@ END_TEST
/* }}} */
static void popcount_eq(uint32_t bits, int count)
{
fail_unless(xcb_popcount(bits) == count, "unexpected popcount(%08x) != %d", bits, count);
}
START_TEST(popcount)
{
uint32_t mask;
int count;
for (mask = 0xffffffff, count = 32; count >= 0; mask >>= 1, --count) {
popcount_eq(mask, count);
}
for (mask = 0x80000000; mask; mask >>= 1) {
popcount_eq(mask, 1);
}
for (mask = 0x80000000; mask > 1; mask >>= 1) {
popcount_eq(mask | 1, 2);
}
}
END_TEST
Suite *public_suite(void)
{
Suite *s = suite_create("Public API");
@ -189,5 +212,6 @@ Suite *public_suite(void)
suite_add_test(s, parse_display_ipv6, "xcb_parse_display ipv6");
suite_add_test(s, parse_display_decnet, "xcb_parse_display decnet");
suite_add_test(s, parse_display_negative, "xcb_parse_display negative");
suite_add_test(s, popcount, "xcb_popcount");
return s;
}