RW wrote: > On Wed, 24 Oct 2007 16:49:24 -0400 > "Aryeh M. Friedman" <[EMAIL PROTECTED]> wrote: > > >> I am writing some demo code (for teaching C) ... showing that >> int's are always word length >> > > s/always/typically/ > > C has been around for a long time and there is always a counter-example > to any sweeping generalisation that isn't backed-up by a standards > document.
BTW I was slightly wrong it is longs not int's that change depending on word size: Script started on Wed Oct 24 19:51:44 2007 > cat sizes.c #include <stdio.h> main() { printf("int:\t\t%d\n",sizeof(int)); printf("short:\t\t%d\n",sizeof(short)); printf("long:\t\t%d\n",sizeof(long)); printf("long long:\t%d\n",sizeof(long long)); printf("float:\t\t%d\n",sizeof(float)); printf("double:\t\t%d\n",sizeof(double)); printf("char:\t\t%d\n",sizeof(char)); printf("ptr:\t\t%d\n",sizeof(void *)); } > gcc sizes.c > ./a.out int: 4 short: 2 long: 8 long long: 8 float: 4 double: 8 char: 1 ptr: 8 > gcc -m32 -B/usr/lib32 -L/usr/lib32 sizes.c # See "forcing compilor/run time linking of lib32 on amd54" in freebsd-questions > ./a.out int: 4 short: 2 long: 4 long long: 8 float: 4 double: 8 char: 1 ptr: 4 Script done on Wed Oct 24 19:52:08 2007 _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"