topic Re: cc (COMPAQ C V6.5) default warning level in Operating System - OpenVMS

cc (COMPAQ C V6.5) default warning level

berlioz — Thu, 06 Jan 2005 11:22:00 GMT

Hello,

i've recently migrating an application from an Alpha OpenVMS 6.1 (c version ?) to an Alpha OpenVMS 7.2-3 server with COMPAQ C V6.5 compiler.

When re-compiling existing source on the new machine i've "noisy" warning or information message.

Is ther a way to define "default" warning level for that compiler ? in a special conf file ?

thanks in advance for all
Philippe

Re: cc (COMPAQ C V6.5) default warning level

Craig A Berry — Thu, 06 Jan 2005 11:34:10 GMT

Not that I'm aware of, and those warnings usually mean something that you really ought to pay attention to and fix in your code. If you must, I suppose you could define a symbol for the CC command that restricts your warning level to something less than the default:

$ cc :== "cc/warnings=level2"

See

$ help cc/warnings

for more information on the warning levels. If there is a standard header file that everything in your application includes, you can control the warnings with "#pragma message".

Re: cc (COMPAQ C V6.5) default warning level

Ian Miller. — Thu, 06 Jan 2005 11:52:28 GMT

the warnings produced by the compiler are worth reading and trying to fix. The newer compiler is trying to be helpful.

Re: cc (COMPAQ C V6.5) default warning level

labadie_1 — Thu, 06 Jan 2005 12:35:49 GMT

>>>Alpha OpenVMS 7.2-3

impressive ! I have never seen that version

:-)

learn something new every day, and you will be happy :-)

Re: cc (COMPAQ C V6.5) default warning level

berlioz — Fri, 07 Jan 2005 01:57:00 GMT

7.3-2 of course... labadie it's new year, i give you 1 point ! lol !

Re: cc (COMPAQ C V6.5) default warning level

Antoniov. — Fri, 07 Jan 2005 02:36:19 GMT

Philippe,
I'm with Ian. New compiler makes useful checks. If you look at them you'll be able to avoid some potential bugs; e.g. new compiler check for casting pointer and variable size. Also it warn you all unused local parameters and variables.
I know it's a very bored job but it's very useful.

Wish you Happy New Year!
Antonio Vigliotti