08/02/18 20:02:18
>>85
#include <stdio.h>
#define HOGE 0L
#define CAT2(a, b) a ## b
#define CAT1(a, b) CAT2(a, b)
#define CAT(a, b) CAT1(a, b)
#define STR2(a) # a
#define STR1(a) STR2(a)
#define STR(a) STR1(a)
int main() {
long double a = CAT(0., HOGE);
printf("%Lf\n", a);
printf("%s\n", STR(CAT(0., HOGE)));
return 0;
}