1  /* Measure strtod implementation.
       2     Copyright (C) 2013-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #define TEST_MAIN
      20  #define TEST_NAME "strtod"
      21  
      22  #include <stdio.h>
      23  #include <stdlib.h>
      24  #include "bench-timing.h"
      25  
      26  #undef INNER_LOOP_ITERS
      27  #define INNER_LOOP_ITERS 131072
      28  
      29  static const char *inputs[] =
      30  {
      31    "1e308",
      32    "100000000e300",
      33    "0x1p1023",
      34    "0x1000p1011",
      35    "0x1p1020",
      36    "0x0.00001p1040" "1e-307",
      37    "0.000001e-301",
      38    "0.0000001e-300",
      39    "0.00000001e-299",
      40    "1000000e-313",
      41    "10000000e-314",
      42    "100000000e-315",
      43    "0x1p-1021",
      44    "0x1000p-1033",
      45    "0x10000p-1037",
      46    "0x0.001p-1009",
      47    "0x0.0001p-1005",
      48    "12.345",
      49    "12.345e19",
      50    "-.1e+9",
      51    ".125",
      52    "1e20",
      53    "0e-19",
      54    "4\00012",
      55    "5.9e-76",
      56    "0x1.4p+3",
      57    "0xAp0",
      58    "0x0Ap0",
      59    "0x0A",
      60    "0xA0",
      61    "0x0.A0p8",
      62    "0x0.50p9",
      63    "0x0.28p10",
      64    "0x0.14p11",
      65    "0x0.0A0p12",
      66    "0x0.050p13",
      67    "0x0.028p14",
      68    "0x0.014p15",
      69    "0x00.00A0p16",
      70    "0x00.0050p17",
      71    "0x00.0028p18",
      72    "0x00.0014p19",
      73    "0x1p-1023",
      74    "0x0.8p-1022",
      75    "Inf",
      76    "-Inf",
      77    "+InFiNiTy",
      78    "0x80000Ap-23",
      79    "1e-324",
      80    "0x100000000000008p0",
      81    "0x100000000000008.p0",
      82    "0x100000000000008.00p0",
      83    "0x10000000000000800p0",
      84    "0x10000000000000801p0",
      85    NULL
      86  };
      87  
      88  int
      89  do_bench (void)
      90  {
      91    const size_t iters = INNER_LOOP_ITERS;
      92  
      93    for (size_t i = 0; inputs[i] != NULL; ++i)
      94      {
      95        char *ep;
      96        timing_t start, stop, cur;
      97  
      98        printf ("Input %-24s:", inputs[i]);
      99        TIMING_NOW (start);
     100        for (size_t j = 0; j < iters; ++j)
     101  	strtod (inputs[i], &ep);
     102        TIMING_NOW (stop);
     103  
     104        TIMING_DIFF (cur, start, stop);
     105        TIMING_PRINT_MEAN ((double) cur, (double) iters);
     106        putchar ('\n');
     107      }
     108  
     109    return 0;
     110  }
     111  
     112  #define TEST_FUNCTION do_bench ()
     113  
     114  #include "../test-skeleton.c"