Motorola DSP56800 Guía de usuario descargar pdf (Pagina 400)

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101

Pragmas for the DSP56800 and DSP56800E

Pragma Reference

400

Targeting MC56F83xx/DSP5685x Controllers

Prototype

#pragma notonce

Remarks

If you enable this pragma, include statements can be repeatedly included, even if

you have enabled #pragma once on. For more information, see “once.”

This pragma does not correspond to any setting in the C/C++ Language panel. By

default, this pragma is disabled.

once

Controls whether or not a header file can be included more than once in the same

source file.

Prototype

#pragma once [ on ]

Remarks

Use this pragma to ensure that the compiler includes header files only once in a source

file.

There are two versions of this pragma: #pragma once and #pragma once on.

Use #pragma once in a header file to ensure that the header file is included only

once in a source file. Use #pragma once on in a header file or source file to insure

that any file is included only once in a source file.

This pragma does not correspond to any setting in the C/C++ Language

panel. By

default, this pragma is disabled.

only_std_keywords

Controls the use of ISO keywords.

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