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On 22/03/2014 18.54, Roberto Ierusalimschy wrote:
It passed in "my Windows" (Windows 7-32, VS 2010).  This can be a bug in
libc. Can you test it in C code?

/* untested */
#include <stdio.h>

int main (void) {
   double d = -0.0;
   printf("%.14g\n", d);
   return 0;

It prints 0, which I suppose it's wrong. This uses the old msvcrt.dll (I don't have a Microsoft C++ compiler installed).