SUMMARY: Word Sizes

From: Stefan Eguizabal <seguizab_at_titan.ccms.miami.edu>
Date: Tue, 12 Aug 1997 10:51:34 -0400 (EDT)

Thanks to the following people for responding:
Steve VanDevender
Richard Renshaw
Tom Rioux
Listserv Postmaster
alan_at_nabeth.cxo.dec.com
Petri Kallberg
barnwell_at_jbsvax.eksystems.com
Roel JT Jonkman

Here is Richard Renshaw's response, which was the most helpful for me...

---
Here's a program I wrote to check sizes and the output from my system. It
looks like definitons are correct:
#include <stdio.h>
void main (void) {
        printf("Sizes of types:\n");
        printf("signed char: %d\n",sizeof(char));
        printf("unsigned char: %d\n",sizeof(unsigned char));
        printf("short: %d\n",sizeof(short));
        printf("unsigned short: %d\n",sizeof(unsigned short));
        printf("int: %d\n",sizeof(int));
        printf("unsigned int: %d\n",sizeof(unsigned int));
        printf("long: %d\n",sizeof(long));
        printf("unsigned long: %d\n",sizeof(unsigned long));
}
Sizes of types:
signed char: 1
unsigned char: 1
short: 2
unsigned short: 2
int: 4
unsigned int: 4
long: 8
unsigned long: 8
----
My original post follows:
Hello.  I'm trying to use the following on Digital Unix 4.0b.  Hardware
is an AlphaServer 2100.
typedef /*signed*/ char            int8_t;
typedef unsigned char            u_int8_t;
typedef short                     int16_t;
typedef unsigned short          u_int16_t;
typedef int                       int32_t;
typedef unsigned int            u_int32_t;
typedef long long                 int64_t;
typedef unsigned long long      u_int64_t;
Are int's 32 bit?  Long's 64? short? etc.?
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Received on Tue Aug 12 1997 - 17:24:29 NZST