https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61847
Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|bug in gfortran runtime on |bug in gfortran runtime:
|OSX: digits cut off when |digits cut off when reading
|reading floating point |floating point number
|number |
--- Comment #10 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
I can reproduce this PR on a linux box with gcc version 4.6.3 20120306 (Red Hat
4.6.3-2), so the bug is not darwin specific.
I have noticed that the file generated by running the test is
1.2345
and does not change if I put the line
setlocale(LC_ALL, "de_DE.UTF-8");
before the line
f = fopen("bug.dat", "w");
Now if I change the content of bug.dat to
1,2345
suppress the file generation in bug.c and use
open(unit=1,file='bug.dat', decimal='comma')
in bugf.f90, running the executable does not give any output (success).
So apparently strtod uses the locale to read 1.2345, giving 1.0 as a result for
"de_DE.UTF-8" (or "fr_FR.UTF-8"), using "en_US.ISO8859-1" gives 1.2345.
The only solution I see is to save the current locale, set it to "C" before
using strtod, and restore it upon completion.
