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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 00:55:53 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 00:55:53 +0000 |
commit | 3d0386f27ca66379acf50199e1d1298386eeeeb8 (patch) | |
tree | f87bd4a126b3a843858eb447e8fd5893c3ee3882 /contrib/ccan/ilog/test | |
parent | Initial commit. (diff) | |
download | knot-resolver-3d0386f27ca66379acf50199e1d1298386eeeeb8.tar.xz knot-resolver-3d0386f27ca66379acf50199e1d1298386eeeeb8.zip |
Adding upstream version 3.2.1.upstream/3.2.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'contrib/ccan/ilog/test')
-rw-r--r-- | contrib/ccan/ilog/test/run-out-of-line.c | 65 | ||||
-rw-r--r-- | contrib/ccan/ilog/test/run.c | 60 |
2 files changed, 125 insertions, 0 deletions
diff --git a/contrib/ccan/ilog/test/run-out-of-line.c b/contrib/ccan/ilog/test/run-out-of-line.c new file mode 100644 index 0000000..48205d3 --- /dev/null +++ b/contrib/ccan/ilog/test/run-out-of-line.c @@ -0,0 +1,65 @@ +#include <ccan/ilog/ilog.h> +#include <ccan/ilog/ilog.c> +#include <stdio.h> +#include <ccan/tap/tap.h> + +/*Dead simple (but slow) versions to compare against.*/ + +static int test_ilog32(uint32_t _v){ + int ret; + for(ret=0;_v;ret++)_v>>=1; + return ret; +} + +static int test_ilog64(uint64_t _v){ + int ret; + for(ret=0;_v;ret++)_v>>=1; + return ret; +} + +#define NTRIALS (64) + +int main(int _argc,const char *_argv[]){ + int i; + int j; + int (*il32)(uint32_t) = ilog32; + int (*il64)(uint64_t) = ilog64; + int (*il32_nz)(uint32_t) = ilog32_nz; + int (*il64_nz)(uint64_t) = ilog64_nz; + + /*This is how many tests you plan to run.*/ + plan_tests(33 * NTRIALS * 3 + 65 * NTRIALS * 3); + for(i=0;i<=32;i++){ + uint32_t v; + /*Test each bit in turn (and 0).*/ + v=i?(uint32_t)1U<<(i-1):0; + for(j=0;j<NTRIALS;j++){ + int l; + l=test_ilog32(v); + ok1(STATIC_ILOG_32(v)==l); + ok1(il32(v)==l); + ok1(il32_nz(v) == l || v == 0); + /*Also try a few more pseudo-random values with at most the same number + of bits.*/ + v=(1103515245U*v+12345U)&0xFFFFFFFFU>>((33-i)>>1)>>((32-i)>>1); + } + } + + for(i=0;i<=64;i++){ + uint64_t v; + /*Test each bit in turn (and 0).*/ + v=i?(uint64_t)1U<<(i-1):0; + for(j=0;j<NTRIALS;j++){ + int l; + l=test_ilog64(v); + ok1(STATIC_ILOG_64(v)==l); + ok1(il64(v)==l); + ok1(il64_nz(v) == l || v == 0); + /*Also try a few more pseudo-random values with at most the same number + of bits.*/ + v=(uint64_t)((2862933555777941757ULL*v+3037000493ULL) + &0xFFFFFFFFFFFFFFFFULL>>((65-i)>>1)>>((64-i)>>1)); + } + } + return exit_status(); +} diff --git a/contrib/ccan/ilog/test/run.c b/contrib/ccan/ilog/test/run.c new file mode 100644 index 0000000..bda59f9 --- /dev/null +++ b/contrib/ccan/ilog/test/run.c @@ -0,0 +1,60 @@ +#include <ccan/ilog/ilog.h> +#include <ccan/ilog/ilog.c> +#include <stdio.h> +#include <ccan/tap/tap.h> + +/*Dead simple (but slow) versions to compare against.*/ + +static int test_ilog32(uint32_t _v){ + int ret; + for(ret=0;_v;ret++)_v>>=1; + return ret; +} + +static int test_ilog64(uint64_t _v){ + int ret; + for(ret=0;_v;ret++)_v>>=1; + return ret; +} + +#define NTRIALS (64) + +int main(int _argc,const char *_argv[]){ + int i; + int j; + /*This is how many tests you plan to run.*/ + plan_tests(33 * NTRIALS * 3 + 65 * NTRIALS * 3); + for(i=0;i<=32;i++){ + uint32_t v; + /*Test each bit in turn (and 0).*/ + v=i?(uint32_t)1U<<(i-1):0; + for(j=0;j<NTRIALS;j++){ + int l; + l=test_ilog32(v); + ok1(STATIC_ILOG_32(v)==l); + ok1(ilog32(v)==l); + ok1(ilog32_nz(v) == l || v == 0); + /*Also try a few more pseudo-random values with at most the same number + of bits.*/ + v=(1103515245U*v+12345U)&0xFFFFFFFFU>>((33-i)>>1)>>((32-i)>>1); + } + } + + for(i=0;i<=64;i++){ + uint64_t v; + /*Test each bit in turn (and 0).*/ + v=i?(uint64_t)1U<<(i-1):0; + for(j=0;j<NTRIALS;j++){ + int l; + l=test_ilog64(v); + ok1(STATIC_ILOG_64(v)==l); + ok1(ilog64(v)==l); + ok1(ilog64_nz(v) == l || v == 0); + /*Also try a few more pseudo-random values with at most the same number + of bits.*/ + v=(uint64_t)((2862933555777941757ULL*v+3037000493ULL) + &0xFFFFFFFFFFFFFFFFULL>>((65-i)>>1)>>((64-i)>>1)); + } + } + return exit_status(); +} |