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#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: */

© Copyright 2019 Alexander J. Quinn         This content is protected and may not be shared, uploaded, or distributed.