1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | #include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <assert.h>
#define print_int_expr_and_value(n) printf("%s == %d\n", (#n), (n))
int round_to_nearest_multiple_of_10(int n) {
int result; // not initializing because it will be initialized in the if or the else clause (↓).
if(n % 10 <= 4) {
result = (n / 10) * 10;
}
else {
result = (n / 10 + 1) * 10;
}
return result;
}
int main(int argc, char* argv[]) {
print_int_expr_and_value( round_to_nearest_multiple_of_10(14) );
print_int_expr_and_value( round_to_nearest_multiple_of_10(18) );
return EXIT_SUCCESS;
}
/* vim: set tabstop=4 shiftwidth=4 fileencoding=utf-8 noexpandtab: */
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