Ex06. simplecalc.c

sum.h int sum(int a, int b); sub.h int sub(int a, int b); mul.h int mul(int a, int b); div.h int div(int a, int b); sum.c int sum(int a, int b) { return a + b; } sub.c int sub(int a, int b) { return a - b; } mul.c int mul(int a, int b) { return a * b; } div.c int div(int a, int b) { return a / b; } simplecal.c #include "sum.h" #include "sub.h" #include "mul.h" #include "div.h" #include <stdio.h> int main(int argc, char **argv) { int a = 1200, b=25; printf("sum : %d\n", sum(a, b)); printf("sub : %d\n", sub(a, b)); printf("mul : %d\n", mul(a, b)); printf("div : %d\n", div(a, b)); }

# gcc -c sum.c sub.c mul.c div.c simplecalc.c
# gcc -o simplecalc sum.o sub.o mul.o div.o simplecalc.o
# ./simplecalc
sum : 1225
sub : 1175
mul : 30000
div : 48
#