10.3 IEEE modules: IEEE_EXCEPTIONS, IEEE_ARITHMETIC, and IEEE_FEATURES
  Standard:
Fortran 2003 and later 
 The IEEE_EXCEPTIONS, IEEE_ARITHMETIC, and IEEE_FEATURES intrinsic modules provide support for exceptions and IEEE arithmetic, as defined in Fortran 2003 and later standards, and the IEC 60559:1989 standard (Binary floating-point arithmetic for microprocessor systems). These modules are only provided on the following supported platforms: 
 i386 and x86_64 processors 
platforms which use the GNU C Library (glibc) 
platforms with support for SysV/386 routines for floating point interface (including Solaris and BSDs) 
platforms with the AIX OS 
 For full compliance with the Fortran standards, code using the IEEE_EXCEPTIONS or IEEE_ARITHMETIC modules should be compiled with the following options: -fno-unsafe-math-optimizations
-frounding-math -fsignaling-nans. 

    
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