Title: | VAX and Alpha VMS |
Notice: | This is a new VMSnotes, please read note 2.1 |
Moderator: | VAXAXP::BERNARDO |
Created: | Wed Jan 22 1997 |
Last Modified: | Fri Jun 06 1997 |
Last Successful Update: | Fri Jun 06 1997 |
Number of topics: | 703 |
Total number of notes: | 3722 |
OpenVMS Alpha V7.1 DEC C V5.5 Hello ! Here is what says the size of long is 4 bytes and integer is also 4 bytes. Where as in digital unix DEC C long size is 8 bytes. Since OpenVMS is also 64 bit , can any bodyexplain why the size of long is 4 bytes? How can show that pointer size is 64 bit and is there any way to check pls. Thx in advance Regards Nagaraj Hegde size of the long is:4 size of the int is:4 size of the double is:8 #include <stdio.h> #include <stdlib.h> main() { printf("size of the long is:%d\n",sizeof(long)); printf("size of the int is:%d\n",sizeof(int)); printf("size of the double is:%d\n",sizeof(double)); } ================== RFC 822 Headers ================== Return-Path: [email protected] Received: by qcav01.qca.dec.com (UCX V3.2 VAX) Thu, 10 Apr 1997 15:25:37 +0500 Received: from archie.xko.dec.com by mail1.digital.com (5.65 EXP 4/12/95 for V3.2/1.0/WV) id AA11280; Thu, 10 Apr 1997 02:10:59 -0700 Date: Thu, 10 Apr 1997 14:33:14 -2359 Message-Id: <[email protected]> From: [email protected] To: [email protected] Subject: DEC C problem... X-Vms-To: SMTP%"[email protected]"
T.R | Title | User | Personal Name | Date | Lines |
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442.1 | MOVIES::WIDDOWSON | Rod OpenVMS Engineering. Project Rock | Thu Apr 10 1997 11:10 | 1 | |
$ Help CC /POINTER_SIZE | |||||
442.2 | TURRIS::DECC | XDELTA::HOFFMAN | Steve, OpenVMS Engineering | Thu Apr 10 1997 12:32 | 11 |
:Where as in digital unix DEC C long size is 8 bytes. Since OpenVMS :is also 64 bit , can any bodyexplain why the size of long is 4 bytes? In a word, compatibility. : How can show that pointer size is 64 bit and is there any way to check pls. As mentioned, HELP CC /POINTER. Better -- since this is specifically a DEC C question and not an OpenVMS question -- see the DEC C notes conference at TURRIS::DECC. There have been various other similar discussions of this particular topic in that conference... |