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| author | Ludovic Courtès <ludo@gnu.org> | 2011-07-01 22:34:29 +0200 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2011-07-01 22:34:29 +0200 |
| commit | 231c0e0e61fc4bdd69398e89084b7819f0420710 (patch) | |
| tree | 097398cd884074bd1d62dfa592fbdd8eda0d9796 /m4/trunc.m4 | |
| parent | 97ec95b72873428f215a8a9892487c3a8435a754 (diff) | |
Update Gnulib to v0.0-5874-g7170ee0.
Diffstat (limited to 'm4/trunc.m4')
| -rw-r--r-- | m4/trunc.m4 | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/m4/trunc.m4 b/m4/trunc.m4 index 953f5b131..62311015b 100644 --- a/m4/trunc.m4 +++ b/m4/trunc.m4 @@ -1,4 +1,4 @@ -# trunc.m4 serial 6 +# trunc.m4 serial 7 dnl Copyright (C) 2007, 2010-2011 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -56,10 +56,12 @@ AC_DEFUN([gl_FUNC_TRUNC], #include <math.h> ]gl_DOUBLE_MINUS_ZERO_CODE[ ]gl_DOUBLE_SIGNBIT_CODE[ -int main() +static double dummy (double f) { return 0; } +int main (int argc, char *argv[]) { + double (*my_trunc) (double) = argc ? trunc : dummy; /* Test whether trunc (-0.0) is -0.0. */ - if (signbitd (minus_zerod) && !signbitd (trunc (minus_zerod))) + if (signbitd (minus_zerod) && !signbitd (my_trunc (minus_zerod))) return 1; return 0; } |