__noop

Microsoft Specific

The __noop intrinsic specifies that a function should be ignored and the argument list be parsed but no code be generated for the arguments. It is intended for use in global debug functions that take a variable number of arguments.

The compiler converts the __noop intrinsic to 0 at compile time.

Example

The following code shows how you could use __noop.

// compiler_intrinsics__noop.cpp
// compile with or without /DDEBUG
#include <stdio.h>

#if DEBUG
   #define PRINT   printf_s
#else
   #define PRINT   __noop
#endif

int main() {
   PRINT("\nhello\n");
}

See Also

Reference

Compiler Intrinsics

C++ Keywords

Change History

Date	History	Reason
September 2009	Added compiler information.	Information enhancement.