undef

Disables all predefined macros.

IDE Equivalent

None

Architectures

IA-32, Intel® 64 architectures

Syntax

Linux and Mac OS X:

-undef

Windows:

None

Arguments

None

Default

OFF

Defined macros are in effect until they are undefined.

Description

This option disables all predefined macros.

Alternate Options

-A- (this is a deprecated option)

Parent topic: Preprocessor Options

See Also

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