sizeof.c

里面包含很多c语言的源码

/* sizeof.c--Program to tell the size of the C variable */
/*           types in bytes */

#include <stdio.h>

int main(void)
{
   printf( "\nA char      is %d bytes", sizeof( char ));
   printf( "\nAn int      is %d bytes", sizeof( int ));
   printf( "\nA short     is %d bytes", sizeof( short ));
   printf( "\nA long      is %d bytes", sizeof( long ));
   printf( "\nA long long is %d bytes\n", sizeof( long long));
   printf( "\nAn unsigned char  is %d bytes", sizeof( unsigned char ));
   printf( "\nAn unsigned int   is %d bytes", sizeof( unsigned int ));
   printf( "\nAn unsigned short is %d bytes", sizeof( unsigned short ));
   printf( "\nAn unsigned long  is %d bytes", sizeof( unsigned long ));
   printf( "\nAn unsigned long long is %d bytes\n",
                                 sizeof( unsigned long long));
   printf( "\nA float     is %d bytes", sizeof( float ));
   printf( "\nA double    is %d bytes", sizeof( double ));
   printf( "\nA long double is %d bytes\n", sizeof( long double ));


   return 0;
}