432 lines
11 KiB
C
432 lines
11 KiB
C
#include "test/jemalloc_test.h"
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#define NBITS_TAB \
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NB( 1) \
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NB( 2) \
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NB( 3) \
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NB( 4) \
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NB( 5) \
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NB( 6) \
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NB( 7) \
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NB( 8) \
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NB( 9) \
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NB(10) \
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NB(11) \
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NB(12) \
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NB(13) \
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NB(14) \
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NB(15) \
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NB(16) \
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NB(17) \
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NB(18) \
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NB(19) \
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NB(20) \
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NB(21) \
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NB(22) \
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NB(23) \
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NB(24) \
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NB(25) \
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NB(26) \
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NB(27) \
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NB(28) \
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NB(29) \
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NB(30) \
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NB(31) \
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NB(32) \
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\
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NB(33) \
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NB(34) \
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NB(35) \
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NB(36) \
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NB(37) \
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NB(38) \
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NB(39) \
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NB(40) \
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NB(41) \
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NB(42) \
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NB(43) \
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NB(44) \
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NB(45) \
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NB(46) \
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NB(47) \
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NB(48) \
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NB(49) \
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NB(50) \
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NB(51) \
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NB(52) \
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NB(53) \
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NB(54) \
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NB(55) \
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NB(56) \
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NB(57) \
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NB(58) \
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NB(59) \
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NB(60) \
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NB(61) \
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NB(62) \
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NB(63) \
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NB(64) \
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NB(65) \
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\
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NB(126) \
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NB(127) \
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NB(128) \
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NB(129) \
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NB(130) \
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\
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NB(254) \
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NB(255) \
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NB(256) \
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NB(257) \
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NB(258) \
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\
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NB(510) \
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NB(511) \
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NB(512) \
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NB(513) \
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NB(514) \
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\
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NB(1024) \
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NB(2048) \
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NB(4096) \
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NB(8192) \
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NB(16384) \
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static void
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test_bitmap_initializer_body(const bitmap_info_t *binfo, size_t nbits) {
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bitmap_info_t binfo_dyn;
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bitmap_info_init(&binfo_dyn, nbits);
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assert_zu_eq(bitmap_size(binfo), bitmap_size(&binfo_dyn),
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"Unexpected difference between static and dynamic initialization, "
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"nbits=%zu", nbits);
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assert_zu_eq(binfo->nbits, binfo_dyn.nbits,
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"Unexpected difference between static and dynamic initialization, "
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"nbits=%zu", nbits);
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#ifdef BITMAP_USE_TREE
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assert_u_eq(binfo->nlevels, binfo_dyn.nlevels,
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"Unexpected difference between static and dynamic initialization, "
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"nbits=%zu", nbits);
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{
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unsigned i;
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for (i = 0; i < binfo->nlevels; i++) {
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assert_zu_eq(binfo->levels[i].group_offset,
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binfo_dyn.levels[i].group_offset,
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"Unexpected difference between static and dynamic "
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"initialization, nbits=%zu, level=%u", nbits, i);
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}
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}
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#else
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assert_zu_eq(binfo->ngroups, binfo_dyn.ngroups,
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"Unexpected difference between static and dynamic initialization");
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#endif
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}
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TEST_BEGIN(test_bitmap_initializer) {
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#define NB(nbits) { \
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if (nbits <= BITMAP_MAXBITS) { \
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bitmap_info_t binfo = \
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BITMAP_INFO_INITIALIZER(nbits); \
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test_bitmap_initializer_body(&binfo, nbits); \
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} \
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}
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NBITS_TAB
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#undef NB
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}
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TEST_END
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static size_t
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test_bitmap_size_body(const bitmap_info_t *binfo, size_t nbits,
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size_t prev_size) {
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size_t size = bitmap_size(binfo);
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assert_zu_ge(size, (nbits >> 3),
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"Bitmap size is smaller than expected");
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assert_zu_ge(size, prev_size, "Bitmap size is smaller than expected");
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return size;
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}
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TEST_BEGIN(test_bitmap_size) {
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size_t nbits, prev_size;
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prev_size = 0;
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for (nbits = 1; nbits <= BITMAP_MAXBITS; nbits++) {
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bitmap_info_t binfo;
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bitmap_info_init(&binfo, nbits);
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prev_size = test_bitmap_size_body(&binfo, nbits, prev_size);
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}
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#define NB(nbits) { \
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bitmap_info_t binfo = BITMAP_INFO_INITIALIZER(nbits); \
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prev_size = test_bitmap_size_body(&binfo, nbits, \
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prev_size); \
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}
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prev_size = 0;
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NBITS_TAB
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#undef NB
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}
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TEST_END
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static void
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test_bitmap_init_body(const bitmap_info_t *binfo, size_t nbits) {
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size_t i;
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bitmap_t *bitmap = (bitmap_t *)malloc(bitmap_size(binfo));
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assert_ptr_not_null(bitmap, "Unexpected malloc() failure");
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bitmap_init(bitmap, binfo, false);
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for (i = 0; i < nbits; i++) {
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assert_false(bitmap_get(bitmap, binfo, i),
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"Bit should be unset");
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}
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bitmap_init(bitmap, binfo, true);
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for (i = 0; i < nbits; i++) {
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assert_true(bitmap_get(bitmap, binfo, i), "Bit should be set");
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}
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free(bitmap);
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}
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TEST_BEGIN(test_bitmap_init) {
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size_t nbits;
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for (nbits = 1; nbits <= BITMAP_MAXBITS; nbits++) {
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bitmap_info_t binfo;
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bitmap_info_init(&binfo, nbits);
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test_bitmap_init_body(&binfo, nbits);
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}
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#define NB(nbits) { \
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bitmap_info_t binfo = BITMAP_INFO_INITIALIZER(nbits); \
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test_bitmap_init_body(&binfo, nbits); \
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}
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NBITS_TAB
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#undef NB
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}
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TEST_END
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static void
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test_bitmap_set_body(const bitmap_info_t *binfo, size_t nbits) {
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size_t i;
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bitmap_t *bitmap = (bitmap_t *)malloc(bitmap_size(binfo));
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assert_ptr_not_null(bitmap, "Unexpected malloc() failure");
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bitmap_init(bitmap, binfo, false);
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for (i = 0; i < nbits; i++) {
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bitmap_set(bitmap, binfo, i);
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}
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assert_true(bitmap_full(bitmap, binfo), "All bits should be set");
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free(bitmap);
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}
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TEST_BEGIN(test_bitmap_set) {
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size_t nbits;
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for (nbits = 1; nbits <= BITMAP_MAXBITS; nbits++) {
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bitmap_info_t binfo;
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bitmap_info_init(&binfo, nbits);
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test_bitmap_set_body(&binfo, nbits);
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}
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#define NB(nbits) { \
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bitmap_info_t binfo = BITMAP_INFO_INITIALIZER(nbits); \
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test_bitmap_set_body(&binfo, nbits); \
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}
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NBITS_TAB
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#undef NB
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}
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TEST_END
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static void
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test_bitmap_unset_body(const bitmap_info_t *binfo, size_t nbits) {
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size_t i;
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bitmap_t *bitmap = (bitmap_t *)malloc(bitmap_size(binfo));
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assert_ptr_not_null(bitmap, "Unexpected malloc() failure");
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bitmap_init(bitmap, binfo, false);
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for (i = 0; i < nbits; i++) {
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bitmap_set(bitmap, binfo, i);
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}
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assert_true(bitmap_full(bitmap, binfo), "All bits should be set");
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for (i = 0; i < nbits; i++) {
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bitmap_unset(bitmap, binfo, i);
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}
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for (i = 0; i < nbits; i++) {
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bitmap_set(bitmap, binfo, i);
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}
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assert_true(bitmap_full(bitmap, binfo), "All bits should be set");
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free(bitmap);
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}
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TEST_BEGIN(test_bitmap_unset) {
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size_t nbits;
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for (nbits = 1; nbits <= BITMAP_MAXBITS; nbits++) {
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bitmap_info_t binfo;
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bitmap_info_init(&binfo, nbits);
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test_bitmap_unset_body(&binfo, nbits);
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}
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#define NB(nbits) { \
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bitmap_info_t binfo = BITMAP_INFO_INITIALIZER(nbits); \
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test_bitmap_unset_body(&binfo, nbits); \
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}
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NBITS_TAB
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#undef NB
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}
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TEST_END
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static void
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test_bitmap_xfu_body(const bitmap_info_t *binfo, size_t nbits) {
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bitmap_t *bitmap = (bitmap_t *)malloc(bitmap_size(binfo));
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assert_ptr_not_null(bitmap, "Unexpected malloc() failure");
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bitmap_init(bitmap, binfo, false);
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/* Iteratively set bits starting at the beginning. */
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for (size_t i = 0; i < nbits; i++) {
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assert_zu_eq(bitmap_ffu(bitmap, binfo, 0), i,
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"First unset bit should be just after previous first unset "
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"bit");
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assert_zu_eq(bitmap_ffu(bitmap, binfo, (i > 0) ? i-1 : i), i,
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"First unset bit should be just after previous first unset "
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"bit");
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assert_zu_eq(bitmap_ffu(bitmap, binfo, i), i,
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"First unset bit should be just after previous first unset "
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"bit");
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assert_zu_eq(bitmap_sfu(bitmap, binfo), i,
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"First unset bit should be just after previous first unset "
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"bit");
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}
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assert_true(bitmap_full(bitmap, binfo), "All bits should be set");
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/*
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* Iteratively unset bits starting at the end, and verify that
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* bitmap_sfu() reaches the unset bits.
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*/
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for (size_t i = nbits - 1; i < nbits; i--) { /* (nbits..0] */
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bitmap_unset(bitmap, binfo, i);
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assert_zu_eq(bitmap_ffu(bitmap, binfo, 0), i,
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"First unset bit should the bit previously unset");
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assert_zu_eq(bitmap_ffu(bitmap, binfo, (i > 0) ? i-1 : i), i,
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"First unset bit should the bit previously unset");
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assert_zu_eq(bitmap_ffu(bitmap, binfo, i), i,
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"First unset bit should the bit previously unset");
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assert_zu_eq(bitmap_sfu(bitmap, binfo), i,
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"First unset bit should the bit previously unset");
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bitmap_unset(bitmap, binfo, i);
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}
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assert_false(bitmap_get(bitmap, binfo, 0), "Bit should be unset");
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/*
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* Iteratively set bits starting at the beginning, and verify that
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* bitmap_sfu() looks past them.
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*/
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for (size_t i = 1; i < nbits; i++) {
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bitmap_set(bitmap, binfo, i - 1);
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assert_zu_eq(bitmap_ffu(bitmap, binfo, 0), i,
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"First unset bit should be just after the bit previously "
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"set");
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assert_zu_eq(bitmap_ffu(bitmap, binfo, (i > 0) ? i-1 : i), i,
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"First unset bit should be just after the bit previously "
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"set");
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assert_zu_eq(bitmap_ffu(bitmap, binfo, i), i,
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"First unset bit should be just after the bit previously "
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"set");
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assert_zu_eq(bitmap_sfu(bitmap, binfo), i,
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"First unset bit should be just after the bit previously "
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"set");
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bitmap_unset(bitmap, binfo, i);
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}
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assert_zu_eq(bitmap_ffu(bitmap, binfo, 0), nbits - 1,
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"First unset bit should be the last bit");
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assert_zu_eq(bitmap_ffu(bitmap, binfo, (nbits > 1) ? nbits-2 : nbits-1),
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nbits - 1, "First unset bit should be the last bit");
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assert_zu_eq(bitmap_ffu(bitmap, binfo, nbits - 1), nbits - 1,
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"First unset bit should be the last bit");
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assert_zu_eq(bitmap_sfu(bitmap, binfo), nbits - 1,
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"First unset bit should be the last bit");
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assert_true(bitmap_full(bitmap, binfo), "All bits should be set");
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/*
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* Bubble a "usu" pattern through the bitmap and verify that
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* bitmap_ffu() finds the correct bit for all five min_bit cases.
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*/
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if (nbits >= 3) {
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for (size_t i = 0; i < nbits-2; i++) {
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bitmap_unset(bitmap, binfo, i);
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bitmap_unset(bitmap, binfo, i+2);
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if (i > 0) {
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assert_zu_eq(bitmap_ffu(bitmap, binfo, i-1), i,
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"Unexpected first unset bit");
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}
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assert_zu_eq(bitmap_ffu(bitmap, binfo, i), i,
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"Unexpected first unset bit");
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assert_zu_eq(bitmap_ffu(bitmap, binfo, i+1), i+2,
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"Unexpected first unset bit");
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assert_zu_eq(bitmap_ffu(bitmap, binfo, i+2), i+2,
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"Unexpected first unset bit");
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if (i + 3 < nbits) {
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assert_zu_eq(bitmap_ffu(bitmap, binfo, i+3),
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nbits, "Unexpected first unset bit");
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}
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assert_zu_eq(bitmap_sfu(bitmap, binfo), i,
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"Unexpected first unset bit");
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assert_zu_eq(bitmap_sfu(bitmap, binfo), i+2,
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"Unexpected first unset bit");
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}
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}
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/*
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* Unset the last bit, bubble another unset bit through the bitmap, and
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* verify that bitmap_ffu() finds the correct bit for all four min_bit
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* cases.
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*/
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if (nbits >= 3) {
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bitmap_unset(bitmap, binfo, nbits-1);
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for (size_t i = 0; i < nbits-1; i++) {
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bitmap_unset(bitmap, binfo, i);
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if (i > 0) {
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assert_zu_eq(bitmap_ffu(bitmap, binfo, i-1), i,
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"Unexpected first unset bit");
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}
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assert_zu_eq(bitmap_ffu(bitmap, binfo, i), i,
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"Unexpected first unset bit");
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assert_zu_eq(bitmap_ffu(bitmap, binfo, i+1), nbits-1,
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"Unexpected first unset bit");
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assert_zu_eq(bitmap_ffu(bitmap, binfo, nbits-1),
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nbits-1, "Unexpected first unset bit");
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assert_zu_eq(bitmap_sfu(bitmap, binfo), i,
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"Unexpected first unset bit");
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}
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assert_zu_eq(bitmap_sfu(bitmap, binfo), nbits-1,
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"Unexpected first unset bit");
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}
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free(bitmap);
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}
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TEST_BEGIN(test_bitmap_xfu) {
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size_t nbits;
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for (nbits = 1; nbits <= BITMAP_MAXBITS; nbits++) {
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bitmap_info_t binfo;
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bitmap_info_init(&binfo, nbits);
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test_bitmap_xfu_body(&binfo, nbits);
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}
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#define NB(nbits) { \
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bitmap_info_t binfo = BITMAP_INFO_INITIALIZER(nbits); \
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test_bitmap_xfu_body(&binfo, nbits); \
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}
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NBITS_TAB
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#undef NB
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}
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TEST_END
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int
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main(void) {
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return test(
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test_bitmap_initializer,
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test_bitmap_size,
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test_bitmap_init,
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test_bitmap_set,
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test_bitmap_unset,
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test_bitmap_xfu);
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}
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