------- Comment #7 from harald dot vogt at desy dot de 2005-11-29 09:42 ------- (In reply to comment #6) > Subject: Re: sqrt, csqrt may give a wrong result if real part of compex > argument is zero > > On Thu, Nov 24, 2005 at 05:05:12PM -0000, pinskia at gcc dot gnu dot org > wrote: > > > > (In reply to comment #4) > > > c99_functions.c contains implementations of csqrt[fl], > > > which are the fixed glibc routines. We can remove > > > the "#if !defined(HAVE_CSQRTF)" and simply have gfortran > > > use its own versions. > > > > For only targets which have a broken csqrtf yes. Please don't do it all the > > time. > > > > I've never used glibc. Does it define a _GLIBC_VERSION_MAJOR > and _GLIBC_VERSION_MINOR? We could do > > #if !defined(HAVE_CSQRTF) || (xx_MAJOR < 42 & xx_MINOR < 42) >
Dont rely on the glibc version. The better way should be to use libgfortran/configure for csqrt, csqrtf, csqrtl to check them and setting HAVE_CSQRT, HAVE_CSQRTF, HAVE_CSQRTL if the checks will not fail. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25017
