preproc.c

来自「c21Examples.rar」· C语言 代码 · 共 14 行

/* Demonstrates the # operator in macro expansion. */

#include <stdio.h>

#define OUT(x) printf(#x " is equal to %d.\n", x)

int main( void )
{
  int value = 123;
  OUT(value);
  return 0;
}