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Function overloading in C
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#include <stdio.h> | |
#include <stdlib.h> | |
#include <string.h> | |
int addi(int a, int b) { | |
return a + b; | |
} | |
char *adds(char *a, char *b) { | |
char *res = malloc(strlen(a) + strlen(b) + 1); | |
strcpy(res, a); | |
strcat(res, b); | |
return res; | |
} | |
#define add(a, b) _Generic(a, int: addi, char*: adds)(a, b) | |
int main(void) { | |
int a = 1, b = 2; | |
printf("%d\n", add(a, b)); // 3 | |
char *c = "hello ", *d = "world"; | |
printf("%s\n", add(c, d)); // hello world | |
return 0; | |
} |
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