Packing/unpacking binary data in C - doubles, 64 bits
Michael ODonnell
michael.odonnell at comcast.net
Thu Sep 10 22:12:12 EDT 2009
Ooops - I forgot about the void * ...
>> Any suggestions to look for a 2^53 type problem?
>
>Well, just for fun, how about going back to basics - what does this
>little program generate on all the systems in question?
#include "stdio.h"
main( int argc,
char *argv[] )
{
printf( "sizeof( double) %2u\n", sizeof( double) );
printf( "sizeof( float) %2u\n", sizeof( float) );
printf( "sizeof(long double) %2u\n", sizeof(long double) );
printf( "sizeof(long signed long) %2u\n", sizeof(long signed long) );
printf( "sizeof(long unsigned long) %2u\n", sizeof(long unsigned long) );
printf( "sizeof( signed char) %2u\n", sizeof( signed char) );
printf( "sizeof( signed long) %2u\n", sizeof( signed long) );
printf( "sizeof( signed short) %2u\n", sizeof( signed short) );
printf( "sizeof( unsigned char) %2u\n", sizeof( unsigned char) );
printf( "sizeof( unsigned long) %2u\n", sizeof( unsigned long) );
printf( "sizeof( unsigned short) %2u\n", sizeof( unsigned short) );
printf( "sizeof( void *) %2u\n", sizeof( void *) ); /* Fprgot this one */
}
_______________________________________________
gnhlug-discuss mailing list
gnhlug-discuss at mail.gnhlug.org
http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
More information about the gnhlug-discuss
mailing list