Troubleshooting
Problem
GCC versions 4.0 and higher support 128-bit quad precision floating point values. The XL compilers now provide the -qfloat=gcclongdouble option to be compatible with GCC's representation of 128-bit quad precision floating point values.
Resolving The Problem
IBM XL compilers on Linux now support quad precision values just like GCC 4.0 and higher does.The -qfloat=gcclongdouble option is enabled only on systems that have GCC 4.0 and higher installed, or a GCC that supports 128-bit long doubles. For the XL C/C++ compiler, the default is -qfloat=gcclongdouble. For the XL Fortran compiler, the default is -qfloat=nogcclongdouble.
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Document Information
Modified date:
24 February 2022
UID
swg21245006