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re PR libfortran/26253 (fallback scalbn doesn't handle denormals correctly)

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PR libfortran/26253
	* intrinsics/c99_functions.c (scalbn): Use ldexp if appopriate.

From-SVN: r128648
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Francois-Xavier Coudert 2007-09-21 10:54:20 +00:00 • committed by François-Xavier Coudert
parent 90d3112688
commit b65d72ab86
2 changed files with 9 additions and 0 deletions
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5
libgfortran/ChangeLog
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@ -1,3 +1,8 @@
2007-09-21 Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>
PR libfortran/26253
* intrinsics/c99_functions.c (scalbn): Use ldexp if appopriate.
2007-09-21 Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>
PR libfortran/23272

4
libgfortran/intrinsics/c99_functions.c
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@ -341,7 +341,11 @@ log10f(float x)
double
scalbn(double x, int y)
{
#if (FLT_RADIX == 2) && defined(HAVE_LDEXP)
return ldexp (x, y);
#else
return x * pow(FLT_RADIX, y);
#endif
}
#endif