| <Syntax> |
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There are four statements that can begin with the PROCEDURE keyword. |
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The procedure declaration statement has the syntax: |
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PROCEDURE ( [ proc-interface ] ) , proc-attr-list :: proc-decl-list
| proc-interface | ::= | interface-name |
| | | declaration-type-spec |
| proc-attr | ::= | INTENT ( intent-spec ) |
| | | OPTIONAL |
| | | POINTER |
| | | PRIVATE |
| | | PUBLIC |
| | | SAVE |
| proc-decl | ::= | proc-name [ => NULL() ] |
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The procedure component definition statement has the syntax: |
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PROCEDURE ( [ proc-interface ] ) , proc-component-attr-list :: proc-component-decl-list
| proc-component-attr | ::= | NOPASS |
| | | PASS [ ( arg-name ) ] |
| | | POINTER |
| | | PRIVATE |
| | | PUBLIC |
| proc-component-decl | ::= | proc-component-name [ => NULL() ] |
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The type-bound procedure statement has the syntax: |
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PROCEDURE ( [ interface-name ] ) , binding-attr-list :: tbp-name [ => procedure-name ]
| binding-attr | ::= | DEFERRED |
| | | NON_OVERRIDABLE |
| | | NOPASS |
| | | PASS [ ( arg-name ) ] |
| | | POINTER |
| | | PRIVATE |
| | | PUBLIC |
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The procedure statement in a generic interface block has the syntax: |
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[ MODULE ] PROCEDURE [ :: ] procedure-name [ , procedure-name ]...
If the keyword MODULE appears, each procedure-name must be the name of a module procedure; otherwise, each procedure-name must be the name of a module procedure, external procedure, dummy procedure or procedure pointer.
In all cases, procedure-name must have an explicit interface.
The MODULE PROCEDURE version of this statement was also present in Fortran 90 and 95.
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| <Semantics> |
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The procedure declaration statement declares an external procedure, a dummy procedure, or a procedure pointer.
A procedure declared by this statement is a procedure pointer if it has the POINTER attribute (which may be specified separately), a dummy procedure if it is a dummy argument, and an external procedure only if it is not a dummy argument and does not have the POINTER attribute.
A dummy procedure with the POINTER attribute is a dummy procedure pointer.
The procedure component definition statement defines a procedure pointer component, also known as an object-bound procedure.
See the related link for the full syntax and semantics.
The type-bound procedure statement defines a type-bound procedure.
See the related link for the full syntax and semantics.
The procedure statement in a generic interface block adds the listed procedures to the generic interface.
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| <Related> |
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Derived Type Definition,
MODULE PROCEDURE statement,
Object-bound procedure,
POINTER attribute,
PRIVATE attribute,
PUBLIC attribute,
Type-bound procedure |
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