Hi to all,
Recently I try ./configure && make && make check on the official source of
gsl-1.15.
Surprisingly, make check failed on histogram in histogram/test1d.c line 436.
Same with the test programs linked against cyggsl-0.dll.
I was able to reproduce the problem in a more simple manner test.c included
my output in test .out.txt after gcc -o ./test.exe ./test.c running on a
pentium 4.
my LANG=fr_FR.UTF-8
it seems that the gcc conversion process fulfilled more accurately the promise
to round to nearest that newlib/libc/stdlib/strtod.c
Regards
//
// Programme de test
//
#include <stdio.h>
#include <stdlib.h>
int
main (void)
{
char gg1[] = "1.5113350125944583977e-02";
char gg2[] = "1.0327455919395465977e-01";
char gg3[] = "1.1335012594458437896e-01";
char gg4[] = "1.1586901763224181916e-01";
double hh1 = 1.5113350125944583977e-02;
double hh2 = 1.0327455919395465977e-01;
double hh3 = 1.1335012594458437896e-01;
double hh4 = 1.1586901763224181916e-01;
char * pEnd;
double jj1 = strtod(gg1, &pEnd);
double jj2 = strtod(gg2, &pEnd);
double jj3 = strtod(gg3, &pEnd);
double jj4 = strtod(gg4, &pEnd);
printf ("init char = %s \nstrtod = %.19e \ngcc = %.19e \n\n",
gg1, jj1, hh1);
printf ("init char = %s \nstrtod = %.19e \ngcc = %.19e \n\n",
gg2, jj2, hh2);
printf ("init char = %s \nstrtod = %.19e \ngcc = %.19e \n\n",
gg3, jj3, hh3);
printf ("init char = %s \nstrtod = %.19e \ngcc = %.19e \n\n",
gg4, jj4, hh4);
return 0;
}
init char = 1.5113350125944583977e-02
strtod = 1.5113350125944582242e-02
gcc = 1.5113350125944583977e-02
init char = 1.0327455919395465977e-01
strtod = 1.0327455919395464590e-01
gcc = 1.0327455919395465977e-01
init char = 1.1335012594458437896e-01
strtod = 1.1335012594458436508e-01
gcc = 1.1335012594458437896e-01
init char = 1.1586901763224181916e-01
strtod = 1.1586901763224180528e-01
gcc = 1.1586901763224181916e-01
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