ARM Compiler toolchain v4.1 for µVision Using the Compiler

Compiler Coding Practices
5.70 Macros with a variable number of arguments in C99
You can declare a macro in C99 that accepts a variable number of arguments. The syntax for
defining such a macro is similar to that of a function. For example:
#define debug(format, ...) fprintf (stderr, format, __VA_ARGS__)
void Variadic_Macros_0()
{
debug ("a test string is printed out along with %x %x %x\n", 12, 14, 20);
}
5.70.1 See also
Concepts
• New language features of C99 on page 5-77.
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