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A very important extension to Fortran 90 and defines one class of parallel DO loop
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FORALL will be a language feature of Fortran95
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It relaxes the restriction that operands of the rhs expressions must be conformable with the lhs array
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It may be masked with a scalar logical expression (extension of WHERE construct)
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A FORALL statement may call user-defined (PURE) functions on the elements of an array, simulating Fortran 90 elemental function invocation (albeit with a different syntax)
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FORALL( index-spec-list [,mask-expr] ) forall assignment
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where forall-assignment is conventional single Fortran90 statement
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