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C function to print string in center of a line using macro
/* This code can be saved in any file with .c extension. Program prints any string in the center of a line using macro. You can use your own logic to solve this. */
#include <stdio.h>
#include <string.h>
/* This is the macro. */
#define print_center( x, y, z ) printf( "%*s\n", ( ( z - y ) / 2 + y ), x );
int main( void )
{
char str[] = "Welcome to CppBuzz.com";
int cols, len;
/* Set cols to the number of columns on your display. */
cols = 80;
len = strlen( str );
/* Calling the macro looks just like calling a function. */
print_center( str, len, cols );
return 0;
}
