mach_routines Module

Fortran machine constants.

Reference

• P. A. Fox, A. D. Hall and N. L. Schryer, Framework for a portable library, ACM Transactions on Mathematical Software 4, 2 (June 1978), pp. 177-188.

Author

• Jacob Williams, June 2022

Contents

Functions

d1mach i1mach r1mach

Functions

public pure function d1mach(i)

Return floating point (double precision) machine dependent constants.

Read more…

Arguments

Type	Intent	Optional	Attributes		Name
integer,	intent(in)			::	i

Return Value real(kind=dp)

public pure function i1mach(i)

Return integer machine dependent constants.

Read more…

Arguments

Type	Intent	Optional	Attributes		Name
integer,	intent(in)			::	i

Return Value integer

public pure function r1mach(i)

Return floating point (single precision) machine dependent constants.

Read more…

Arguments

Type	Intent	Optional	Attributes		Name
integer,	intent(in)			::	i

Return Value real(kind=sp)