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glibc/benchtests/bench-strtod.c
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/* Measure strtod implementation. | |
Copyright (C) 2013-2016 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
The GNU C Library is free software; you can redistribute it and/or | |
modify it under the terms of the GNU Lesser General Public | |
License as published by the Free Software Foundation; either | |
version 2.1 of the License, or (at your option) any later version. | |
The GNU C Library is distributed in the hope that it will be useful, | |
but WITHOUT ANY WARRANTY; without even the implied warranty of | |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
Lesser General Public License for more details. | |
You should have received a copy of the GNU Lesser General Public | |
License along with the GNU C Library; if not, see | |
<http://www.gnu.org/licenses/>. */ | |
#define TEST_MAIN | |
#define TEST_NAME "strtod" | |
#include <stdio.h> | |
#include <stdlib.h> | |
#include "bench-timing.h" | |
#undef INNER_LOOP_ITERS | |
#define INNER_LOOP_ITERS 65536 | |
static const char *inputs[] = | |
{ | |
"1e308", | |
"100000000e300", | |
"0x1p1023", | |
"0x1000p1011", | |
"0x1p1020", | |
"0x0.00001p1040" "1e-307", | |
"0.000001e-301", | |
"0.0000001e-300", | |
"0.00000001e-299", | |
"1000000e-313", | |
"10000000e-314", | |
"100000000e-315", | |
"0x1p-1021", | |
"0x1000p-1033", | |
"0x10000p-1037", | |
"0x0.001p-1009", | |
"0x0.0001p-1005", | |
"12.345", | |
"12.345e19", | |
"-.1e+9", | |
".125", | |
"1e20", | |
"0e-19", | |
"4\00012", | |
"5.9e-76", | |
"0x1.4p+3", | |
"0xAp0", | |
"0x0Ap0", | |
"0x0A", | |
"0xA0", | |
"0x0.A0p8", | |
"0x0.50p9", | |
"0x0.28p10", | |
"0x0.14p11", | |
"0x0.0A0p12", | |
"0x0.050p13", | |
"0x0.028p14", | |
"0x0.014p15", | |
"0x00.00A0p16", | |
"0x00.0050p17", | |
"0x00.0028p18", | |
"0x00.0014p19", | |
"0x1p-1023", | |
"0x0.8p-1022", | |
"Inf", | |
"-Inf", | |
"+InFiNiTy", | |
"0x80000Ap-23", | |
"1e-324", | |
"0x100000000000008p0", | |
"0x100000000000008.p0", | |
"0x100000000000008.00p0", | |
"0x10000000000000800p0", | |
"0x10000000000000801p0", | |
NULL | |
}; | |
int | |
do_bench (void) | |
{ | |
const size_t iters = INNER_LOOP_ITERS; | |
timing_t res __attribute__ ((unused)); | |
TIMING_INIT (res); | |
for (size_t i = 0; inputs[i] != NULL; ++i) | |
{ | |
char *ep; | |
timing_t start, stop, cur; | |
printf ("Input %-24s:", inputs[i]); | |
TIMING_NOW (start); | |
for (size_t j = 0; j < iters; ++j) | |
strtod (inputs[i], &ep); | |
TIMING_NOW (stop); | |
TIMING_DIFF (cur, start, stop); | |
TIMING_PRINT_MEAN ((double) cur, (double) iters); | |
putchar ('\n'); | |
} | |
return 0; | |
} | |
#define TEST_FUNCTION do_bench () | |
/* On slower platforms this test needs more than the default 2 seconds. */ | |
#define TIMEOUT 10 | |
#include "../test-skeleton.c" |