-qkeyword

Pragma equivalent

None

Purpose

Controls whether the specified name is treated as a keyword or as an identifier whenever it appears in your program source.

Syntax


        .-keyword---.                    
>>- -q--+-nokeyword-+--=--keyword_name-------------------------><

Defaults

By default, all the built-in keywords defined in the C language standard are reserved as keywords.

Usage

You cannot add keywords to the language with this option. However, you can use -qnokeyword=keyword_name to disable built-in keywords, and use -qkeyword=keyword_name to reinstate those keywords.

This option can be used with the following C keywords:

asm
inline
restrict
typeof

Note: asm is not reserved as a keyword at the stdc89 or stdc99 language level.

Predefined macros

__C99_INLINE is defined to 1 when -qkeyword=inline is in effect.
__C99_RESTRICT is defined to 1 when -qkeyword=restrict is in effect.
__IBM_GCC_ASM is defined to 1 when -qkeyword=asm is in effect.
__IBM__TYPEOF__ is defined to 1 when -qkeyword=typeof is in effect.

Examples

You can reinstate typeof with the following invocation:

xlc -qkeyword=typeof