la_lapack::laisnan Interface Reference

This routine is not for general use. It exists solely to avoid over-optimization in DISNAN. LAISNAN: checks for NaNs by comparing its two arguments for inequality. NaN is the only floating-point value where NaN != NaN returns .TRUE. To check for NaNs, pass the same variable as both arguments. A compiler must assume that the two arguments are not the same variable, and the test will not be optimized away. Interprocedural or whole-program optimization may delete this test. The ISNAN functions will be replaced by the correct Fortran 03 intrinsic once the intrinsic is widely available. More...

Public Member Functions
	la_dlaisnan
	la_qlaisnan
	la_slaisnan

Detailed Description

This routine is not for general use. It exists solely to avoid over-optimization in DISNAN. LAISNAN: checks for NaNs by comparing its two arguments for inequality. NaN is the only floating-point value where NaN != NaN returns .TRUE. To check for NaNs, pass the same variable as both arguments. A compiler must assume that the two arguments are not the same variable, and the test will not be optimized away. Interprocedural or whole-program optimization may delete this test. The ISNAN functions will be replaced by the correct Fortran 03 intrinsic once the intrinsic is widely available.

Member Function/Subroutine Documentation

la_dlaisnan()

la_lapack::laisnan::la_dlaisnan

la_qlaisnan()

la_lapack::laisnan::la_qlaisnan

la_slaisnan()

la_lapack::laisnan::la_slaisnan

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The documentation for this interface was generated from the following file:

• la_lapack.F90