mo_utils::special_value Interface Reference

Special IEEE values. More...

Public Member Functions
real(sp) function	special_value_sp (x, ieee)
real(dp) function	special_value_dp (x, ieee)

Detailed Description

Special IEEE values.

Returns special IEEE values such as Infinity or Not-a-Number.
Wraps to function ieee_value of the intrinsic module ieee_arithmetic.
Current special values are:

• IEEE_SIGNALING_NAN
• IEEE_QUIET_NAN
• IEEE_NEGATIVE_INF
• IEEE_POSITIVE_INF
• IEEE_NEGATIVE_DENORMAL
• IEEE_POSITIVE_DENORMAL
• IEEE_NEGATIVE_NORMAL
• IEEE_POSITIVE_NORMAL
• IEEE_NEGATIVE_ZERO
• IEEE_POSITIVE_ZERO

Example

Returns NaN

nan = special_value(1.0, 'IEEE_QUIET_NAN')
nan = special_value(1.0_dp, 'ieee_quiet_nan')

Parameters

[in]	real(sp/dp) :: x	dummy for kind of output
[in]	character(le=*) :: ieee	ieee signal nanme

Return values

real(sp/dp) :: special_value

IEEE special value, IEEE_SIGNALING_NAN, IEEE_QUIET_NAN (==IEEE_SIGNALING_NAN for gfortran), IEEE_NEGATIVE_INF, IEEE_POSITIVE_INF, IEEE_NEGATIVE_DENORMAL (==-0.0 for gfortran), IEEE_POSITIVE_DENORMAL (==0.0 for gfortran), IEEE_NEGATIVE_NORMAL (==-1.0 for gfortran), IEEE_POSITIVE_NORMAL (==1.0 for gfortran), IEEE_NEGATIVE_ZERO, IEEE_POSITIVE_ZERO,

Authors

Matthias Cuntz

Date

Mar 2015

Definition at line 496 of file mo_utils.F90.

Member Function/Subroutine Documentation

special_value_dp()

real(dp) function mo_utils::special_value::special_value_dp	(	real(dp), intent(in)	x,
		character(len = *), intent(in)	ieee
	)

Parameters

[in]	x	dummy for kind of output.
[in]	ieee	ieee signal name.

Returns

real(dp) :: special_value — IEEE special value, IEEE_SIGNALING_NAN, IEEE_QUIET_NAN, IEEE_NEGATIVE_INF, IEEE_POSITIVE_INF, IEEE_NEGATIVE_DENORMAL, IEEE_POSITIVE_DENORMAL, IEEE_NEGATIVE_NORMAL, IEEE_POSITIVE_NORMAL, IEEE_NEGATIVE_ZERO, IEEE_POSITIVE_ZERO,

Definition at line 1339 of file mo_utils.F90.

References mo_utils::special_value_dp().

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special_value_sp()

real(sp) function mo_utils::special_value::special_value_sp	(	real(sp), intent(in)	x,
		character(len = *), intent(in)	ieee
	)

Parameters

[in]	x	dummy for kind of output.
[in]	ieee	ieee signal name.

Returns

IEEE special value, IEEE_SIGNALING_NAN, IEEE_QUIET_NAN, IEEE_NEGATIVE_INF, IEEE_POSITIVE_INF, IEEE_NEGATIVE_DENORMAL, IEEE_POSITIVE_DENORMAL, IEEE_NEGATIVE_NORMAL, IEEE_POSITIVE_NORMAL, IEEE_NEGATIVE_ZERO, IEEE_POSITIVE_ZERO,

Definition at line 1400 of file mo_utils.F90.

References mo_string_utils::compress(), mo_message::message(), and mo_utils::special_value_sp().

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

• src/mo_utils.F90