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Syntax of Directives

XBNF hpf-directive-line -to -rule to to is directive-origin hpf-directive

directive-origin -to -rule to to is !HPF$ -to or *HPF$

hpf-directive -to -rule to to is specification-directive -to or executable-directive

specification-directive -to -rule to to is processors-directive -to or align-directive -to or distribute-directive -to or dynamic-directive -to or inherit-directive -to or template-directive -to or combined-directive -to or sequence-directive

executable-directive -to -rule to to is realign-directive -to or redistribute-directive -to or independent-directive XBNF

• An hpf-directive-line cannot be commentary following another statement on the same line.

• A specification-directive may appear only where a declaration-construct may appear.

• An executable-directive may appear only where an executable-construct may appear.

• An hpf-directive-line follows the rules of either Fortran 90 free form (3.3.1.1) or fixed form (3.3.2.1) comment lines, depending on the source form of the surrounding Fortran 90 source form in that program unit. (3.3)