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Painless

C++ - macro parameter substitution for string literals?

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Search didn't turn up much. Is there a way to use a parameter of a macro in a string literal? For example: #define FOO( BAR_ ) do_stuff( "BAR_" ); (so FOO( baz ) becomes do_stuff( "baz" );) Simply writing it like that doesn't seem to work - the macro parameter is ignored inside the string. Edit: code tags don't work the old way.. Edit n+1: whatever, I can't get any of them to work.

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Yes, use a # prefix:
#define FOO(BAR) do_stuff(#BAR)
// FOO(baz) --> do_stuff("baz")

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Guest Anonymous Poster
#define FOO( BAR_ ) do_stuff ( #BAR_ )

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#define STR2(X) #X
#define STR(X) STR2(X)

#define FOO(BAR) do_stuff(STR(BAR))


Will work even if BAR is itself a macro.

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