Here we will see how to define a macro called PRINT(x), and this will print whatever the value of x, passed as an argument.
To solve this problem, we will use the stringize operator. Using this operator the x is converted into string, then by calling the printf() function internally, the value of x will be printed. Let us see the example to get the better idea.
Example
#include <stdio.h> #define PRINT(x) printf(#x) int main () { PRINT(Hello); printf("\n"); PRINT(26); printf("\n"); PRINT(2.354721); printf("\n"); }
Output
Hello 26 2.354721