diff options
Diffstat (limited to 'web/server/h2o/libh2o/deps/klib/test/khash_keith2.c')
-rw-r--r-- | web/server/h2o/libh2o/deps/klib/test/khash_keith2.c | 67 |
1 files changed, 0 insertions, 67 deletions
diff --git a/web/server/h2o/libh2o/deps/klib/test/khash_keith2.c b/web/server/h2o/libh2o/deps/klib/test/khash_keith2.c deleted file mode 100644 index b9df9b7c1..000000000 --- a/web/server/h2o/libh2o/deps/klib/test/khash_keith2.c +++ /dev/null @@ -1,67 +0,0 @@ -/* - * This is an optimized version of the following C++ program: - * - * http://keithlea.com/javabench/src/cpp/hash.cpp - * - * Keith in his benchmark (http://keithlea.com/javabench/data) showed that the - * Java implementation is twice as fast as the C++ version. In fact, this is - * only because the C++ implementation is substandard. Most importantly, Keith - * is using "sprintf()" to convert an integer to a string, which is known to be - * extremely inefficient. - */ -#include <stdio.h> -#include "khash.h" -KHASH_MAP_INIT_STR(str, int) - -inline void int2str(int c, int base, char *ret) -{ - const char *tab = "0123456789abcdef"; - if (c == 0) ret[0] = '0', ret[1] = 0; - else { - int l, x, y; - char buf[16]; - for (l = 0, x = c < 0? -c : c; x > 0; x /= base) buf[l++] = tab[x%base]; - if (c < 0) buf[l++] = '-'; - for (x = l - 1, y = 0; x >= 0; --x) ret[y++] = buf[x]; - ret[y] = 0; - } -} - -int main(int argc, char *argv[]) -{ - int i, l, n = 1000, ret; - khash_t(str) *h, *h2; - khint_t k; - h = kh_init(str); - h2 = kh_init(str); - if (argc > 1) n = atoi(argv[1]); - for (i = 0; i < 10000; ++i) { - char buf[32]; - strcpy(buf, "foo_"); - int2str(i, 10, buf+4); - k = kh_put(str, h, strdup(buf), &ret); - kh_val(h, k) = i; - } - for (i = 0; i < n; ++i) { - for (k = kh_begin(h); k != kh_end(h); ++k) { - if (kh_exist(h, k)) { - khint_t k2 = kh_put(str, h2, kh_key(h, k), &ret); - if (ret) { // absent - kh_key(h2, k2) = strdup(kh_key(h, k)); - kh_val(h2, k2) = kh_val(h, k); - } else kh_val(h2, k2) += kh_val(h, k); - } - } - } - k = kh_get(str, h, "foo_1"); printf("%d", kh_val(h, k)); - k = kh_get(str, h, "foo_9999"); printf(" %d", kh_val(h, k)); - k = kh_get(str, h2, "foo_1"); printf(" %d", kh_val(h2, k)); - k = kh_get(str, h2, "foo_9999"); printf(" %d\n", kh_val(h2, k)); - for (k = kh_begin(h); k != kh_end(h); ++k) - if (kh_exist(h, k)) free((char*)kh_key(h, k)); - for (k = kh_begin(h2); k != kh_end(h2); ++k) - if (kh_exist(h2, k)) free((char*)kh_key(h2, k)); - kh_destroy(str, h); - kh_destroy(str, h2); - return 0; -} |