test strtod

1-strtod.c

#include <stdio.h>
#include <stdlib.h>
#include <errno.h>

int main() {
    char n[] = "0.1E-321";
    double x;
    x = strtod(n, 0);
    printf("n = %s\nd = %0.330f\nerrno = %d\n", n, x, errno);
}

2-result.md

gcc version 4.7.1 (tdm-1) on XP

$ ./a.exe
n = 0.1E-321
d = 0.00000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
0000000000000000
errno = 34

gcc version 4.7.1 (rubenvb-4.7.1) on XP

$ ./a.exe
n = 0.1E-321
d = 0.00000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
0000000098813129
errno = 34

VC 2010 on XP

Microsoft(R) 32-bit C/C++ Optimizing Compiler Version 16.00.40219.01 for 80x86

$ strtod.exe
n = 0.1E-321
d = 0.00000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
0000000098813129
errno = 0

gcc version 4.1.2 20080704 (Red Hat 4.1.2-44) on Linux

$ ./a.out
n = 0.1E-321
d = 0.00000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
0000000098813129
errno = 0

odd, here's what I get using a couple of our 32bit DevKit's:

gcc 4.6.2 (mingw-32-4.6.2) on Win7 32 bit

n = 0.1E-321
d = 0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000098813129
errno = 0

gcc 4.7.1 (tdm-32-4.7.1) on Win7 32bit

n = 0.1E-321
d = 0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000098813129
errno = 0