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9.293 uses

Synopsis

In a program:

 
program @@fragment foo;

uses bar1, bar2 in 'baz.pas', bar3;

[...]

In a unit:

 
unit @@fragment Bar3;

interface

uses bar1, bar2 in 'baz.pas';

[...]

implementation

uses bar3, bar4 in 'qux.pas';

[...]

Description

The reserved word `uses' in the import part of a program or unit makes the program or unit import an interface.

The keyword `in' tells GPC to look for the `unit' in the specified file; otherwise the file name is derived from the name of the interface by adding first `.p', then `.pas'.

There must be at most one import part in a program.

In a unit, there can be one import part in the interface part and one in the implementation part.

The imported interface needn't be a UCSD/Borland Pascal unit, it may be an interface exported by an Extended Pascal module as well.

Conforming to

ISO Pascal does not define `uses' and units at all. UCSD and Borland Pascal do, but without the `in' extension. Delphi supports `uses' like described above.

Example

See also

section 9.288 unit, section 9.163 module, section 9.113 import.



This document was generated by Frank Heckenbach on May, 10 2002 using texi2html