Intel® Fortran Libraries Reference

Descriptions of the Library Routines 2for_rtl_init_Run-Time Subroutine: Initializes the Fortran run-time environment. It establishes handlers andfloating-point exception handling, so Fortran subroutines behave the same as when called from aFortran main program.This routine should be called from a C main program; it is invoked by default from a Fortran mainprogram.SyntaxCALL for_rtl_init_ (argcount, actarg)argcountIs a command-line parameter describing the argument count.actargIs a command-line parameter describing the actual arguments.To clean up the Fortran run-time environment, use “for_rtl_finish_”.ExampleConsider the following C code:int argc;char **argv;void for_rtl_init_ (int *, char **);for_rtl_init_ (&argc, argv);FOR_SET_FPERun-time Function: Sets the floating-point exception flags. This routine can be called from a Cor Fortran program.Module: USE IFCORESyntaxresult = FOR_SET_FPE (a)aMust be of type INTEGER(4). It contains bit flags controlling floating-point exception trapping,reporting, and result handling.Results:The result type is INTEGER(4). The return value represents the previous settings of thefloating-point exception flags. The meanings of the bits are defined in the IFCORE module file.2-87