None
Controls whether the specified name is treated as a keyword or as an identifier whenever it appears in your program source.
By default all the built-in keywords defined in the C and C++ language standards are reserved as keywords.
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 all C++ built-in keywords.
This
option can also be used with the following
C keywords:
asm is not a keyword when
the -qlanglvl option is set to stdc89 or stdc99.
__BOOL__ is defined
to 1 by default; however, it is undefined when -qnokeyword=bool is
in effect.
__C99_INLINE is defined to 1 when -qkeyword=inline is
in effect.
__IBM_GCC_ASM is defined to 1 when -qkeyword=asm is
in effect. (In C++ it is defined by default.)
You
can reinstate bool with the following invocation:
xlc++ -qkeyword=bool
You can reinstate typeof with the following
invocation: xlc -qkeyword=typeof