/*
 * sizeof() cheat sheet.
 * Compile on a particular architecture/compiler/ABI combination 
 * to learn the sizes of different structures and constants.
 *
 * Written by Godmar Back <gback@cs.vt.edu> for CS 3204 Fall 2006.
 */
#include <stdio.h>

#define PRINT_SIZEOF(p) do { printf("sizeof (%s) -> %d\n", #p, sizeof(p)); } while (0)

int
main()
{
    PRINT_SIZEOF(char);
    PRINT_SIZEOF(unsigned char);
    PRINT_SIZEOF(short);
    PRINT_SIZEOF(void); // gcc only
    PRINT_SIZEOF(int);
    PRINT_SIZEOF(unsigned);
    PRINT_SIZEOF(long);
    PRINT_SIZEOF(long long);
    PRINT_SIZEOF(unsigned long long);
    PRINT_SIZEOF(float);
    PRINT_SIZEOF(double);
    PRINT_SIZEOF(long double);
    PRINT_SIZEOF(_Bool);	// defined by C99
    PRINT_SIZEOF(512);
    PRINT_SIZEOF('\0');
    PRINT_SIZEOF((char)'\0');
    PRINT_SIZEOF('0');
    PRINT_SIZEOF(512L);
    PRINT_SIZEOF(512LL);
    PRINT_SIZEOF(512ULL);
    PRINT_SIZEOF(512UL);
    PRINT_SIZEOF(512LU);
    PRINT_SIZEOF(3.0f);
    PRINT_SIZEOF(3.0);
    PRINT_SIZEOF(3.0l);
    PRINT_SIZEOF(void *);
    PRINT_SIZEOF(void **);
    PRINT_SIZEOF(char *);
    PRINT_SIZEOF(int *);
    PRINT_SIZEOF(unsigned *);
    PRINT_SIZEOF(long double *);
    PRINT_SIZEOF(struct { int x; });
    PRINT_SIZEOF(struct { char x; int y; });
    PRINT_SIZEOF(struct { char x; short y; int z; });
    PRINT_SIZEOF(struct { char w; short x; char y; int z; });
    PRINT_SIZEOF(struct { char w; short x; char y; int z; }*);
    PRINT_SIZEOF(struct { char w; short x; char y; int z; }**);
    PRINT_SIZEOF(struct { char x; double y; });
    PRINT_SIZEOF(struct { char x; float y; });
    PRINT_SIZEOF(char [22]);
    char declared_as_char_buf_30[30];
    PRINT_SIZEOF(declared_as_char_buf_30);
    PRINT_SIZEOF("0123456789");
    PRINT_SIZEOF("0123456789" + 0);
    PRINT_SIZEOF(*"0123456789");
    PRINT_SIZEOF("0123456789"[5]);
    char *declared_as_char_pointer;
    PRINT_SIZEOF(declared_as_char_pointer);
    PRINT_SIZEOF(*declared_as_char_pointer);
    PRINT_SIZEOF(int [512]);
    PRINT_SIZEOF(unsigned short [256]);
    PRINT_SIZEOF(unsigned short *[256]);
    PRINT_SIZEOF(char [512]);
    PRINT_SIZEOF(struct { int x[126]; int y; int z; });
}