pop, push. NXP CodeWarrior Development Studio

Chapter 32 Pragmas for Preprocessing

Beware that when using

#pragma once on

, precompiled headers transferred from one host machine to another might not give the same results during compilation. This inconsistency is because the compiler stores the full paths of included files to distinguish between two distinct files that have identical file names but different paths. Use the warn_pch_portability

pragma to issue a warning message when you use

#pragma once on

in a precompiled header.

Also, if you enable the old_pragma_once on

pragma, the once

pragma completely ignores path names.

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

.

32.14 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

Listing 32-1 on page 509

.

Listing 32-1. 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

.

Tip

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.

32.15 pragma_prepdump

CodeWarrior Development Studio for Advanced Packet Processing Build Tools Reference Manual, Rev.

10.2, 01/2016

Freescale Semiconductor, Inc.

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