1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | #include <stdio.h>
#include <stdlib.h>
#include "clog.h"
typedef union { // ON OUR PLATFORM....
int as_int; // 4 bytes
float as_float; // 4 bytes
long long as_long_long; // 8 bytes
} Number; // MAXIMUM == 8 bytes ... use MAXIMUM for union
typedef struct {
int as_int; // 4 bytes
float as_float; // 4 bytes
long long as_long_long; // 8 bytes
} WastefulNumber; // TOTAL == 16 bytes ... Use TOTAL for struct
int main(int argc, char* argv[]) {
Number n1 = { .as_int = 5 };
Number n2 = { .as_float = 0.2 };
Number n3 = { .as_long_long = 9999999999999L };// L suffix makes it long
log_int(n1.as_int);
log_float(n2.as_float);
printf("n3.as_long_long == %lld\n", n3.as_long_long);
printf("sizeof(n1) == %zd\n", sizeof(n1));
printf("sizeof(n2) == %zd\n", sizeof(n2));
printf("sizeof(n3) == %zd\n", sizeof(n3));
WastefulNumber n4 = { .as_int = 5 };
WastefulNumber n5 = { .as_float = 0.2 };
WastefulNumber n6 = { .as_long_long = 9999999999999L };
log_int(n4.as_int);
log_float(n5.as_float);
printf("n6.as_long_long == %lld\n", n6.as_long_long);
printf("sizeof(n4) == %zd\n", sizeof(n4));
printf("sizeof(n5) == %zd\n", sizeof(n5));
printf("sizeof(n6) == %zd\n", sizeof(n6));
return EXIT_SUCCESS;
}
/* vim: set tabstop=4 shiftwidth=4 fileencoding=utf-8 noexpandtab: */
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