block |
Is a structured block (section) of statements or constructs. No branching into or out of the block of code is allowed.
The block is executed so that each statement is completed before the next statement is started and the evaluation of the right hand side of an assignment is completed before the effects of assigning to the left hand side occur.
The following are additional rules for this argument:
block may contain statements which bind to lexically enclosed PARALLEL constructs. Statements in these PARALLEL constructs are not restricted.
block may contain ATOMIC directives and CRITICAL constructs.
block must only contain array assignment statements, scalar assignment statements, FORALL statements, FORALL constructs, WHERE statements, or WHERE constructs.
block must not contain any user defined function calls unless the function is ELEMENTAL.
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