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abhi294074
abhi294074

Reputation: 257

Print method name that you define with parameter

We are using a method 

#define CM_VALUE_1                       CM_Method(3001)

CM_Method is a method define in same file .

I just want to print CM_Method(3001) by using CM_VALUE_1 in vc++

Upvotes: 1

Views: 134

Answers (1)

jxh
jxh

Reputation: 70382

Use the stringize preprocessor operator indirectly to get what you want.

#define MAKE_STR(X) #X
#define MAKE_STR2(X) MAKE_STR(X)

std::cout << MAKE_STR(CM_VALUE_1)
          << " is " << MAKE_STR2(CM_VALUE_1)
          << std::endl;

will result in

CM_VALUE_1 is CM_METHOD(3001)

If the parameter to MAKE_STR2 is itself a macro, it is expanded when calling MAKE_STR, so the outcome is the stringization of what the parameter was defined to be, rather than the macro name itself.

Upvotes: 5

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