AN3350 datasheet(161/185 Pages) STMICROELECTRONICS

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AN3350

Pragmas for preprocessing

Doc ID 018512 Rev 2

161/185

20.14

pop, push

Saves and restores pragma settings.

Syntax

#pragma push

#pragma pop

Remarks

The pragma push saves all the current pragma settings. The pragma pop restores all the

pragma settings that resulted from the last push pragma. For example, see Example 112.

Example 112 push and pop example

#pragma ANSI_strict on

#pragma push /* Saves all compiler settings. */

#pragma ANSI_strict off

#pragma pop /* Restores ANSI_strict to on. */

This pragma does not correspond to any panel setting. By default, this pragma is off.

Note:

Pragmas directives that accept on | off | reset already form a stack of previous option

values. It is not necessary to use #pragma pop or #pragma push with such pragmas.

20.15

pragma_prepdump

Controls whether pragma directives in the source text appear in the preprocessing output.

Syntax

#pragma pragma_prepdump on | off | reset

Remarks

By default, this pragma is off.

Note:

When submitting bug reports with a preprocessor dump, be sure this option is enabled.

20.16

precompile_target

Specifies the file name for a precompiled header file.

Syntax

#pragma precompile_target filename

Parameters

filename

A simple file name or an absolute path name. If filename is a simple file name, the compiler

saves the file in the same folder as the source file. If filename is a path name, the compiler

saves the file in the specified folder.

AN3350 데이터시트(PDF) 161 Page - STMicroelectronics