if Clause

| OPENMP API Specification: "Version 5.2 -- GIT rev 95b2e3a44"

3.4 if Clause


Name: if	Properties: default

Arguments


Name	Type	Properties

if-expression	expression of logical type	default

Modiﬁers


Name	Modiﬁes	Type	Properties

directive-name-modiﬁer	if-expression	Keyword: directive-name	unique

Directives

cancel, parallel, simd, target, target data, target enter data, target exit data, target update, task, taskloop

Semantics

If no directive-name-modiﬁer is speciﬁed then the eﬀect is as if a directive-name-modiﬁer was speciﬁed with the directive-name of the directive on which the clause appears.

The eﬀect of the if clause depends on the construct to which it is applied. If the construct is not a combined or composite construct then the eﬀect is described in the section that describes that construct. For combined or composite constructs, the if clause only applies to the semantics of the construct named in the directive-name-modiﬁer. For a combined or composite construct, if no directive-name-modiﬁer is speciﬁed then the if clause applies to all constituent constructs to which an if clause can apply.

Restrictions

Restrictions to the if clause are as follows:

At most one if clause can be speciﬁed that applies to the semantics of any construct or constituent construct of a directive-speciﬁcation.
The directive-name-modiﬁer must specify the directive-name of the construct or of a constituent construct of the directive-speciﬁcation on which the if clause appears.

Cross References

cancel directive, see Section 16.1
parallel directive, see Section 10.1
simd directive, see Section 10.4
target data directive, see Section 13.5
target directive, see Section 13.8
target enter data directive, see Section 13.6
target exit data directive, see Section 13.7
target update directive, see Section 13.9
task directive, see Section 12.5
taskloop directive, see Section 12.6

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