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Re: Compile Error in c99
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From: |
Thomas Dickey |
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Subject: |
Re: Compile Error in c99 |
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Date: |
Thu, 20 Aug 2020 04:04:28 -0400 |
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User-agent: |
NeoMutt/20170113 (1.7.2) |
On Wed, Aug 19, 2020 at 07:23:29PM -0400, Randall S. Becker wrote:
> The c99 compiler used on NonStop caught this one. I think it's legit:
>
> static const TTY null_TTY; /* all zeros iff uninitialized */
>
> ^
>
> "/home/jenkins/.jenkins/workspace/Ncurses_Pipeline/ncurses/../ncurses/./base
> /lib_set_term.c", line 309: warning(338):
>
> const variable "null_TTY" requires an initializer
>
> A const scalar should be initialized. Do not depend on the compiler to
longstanding practice says that static variables are guaranteed to be zeroed
(this compiler appears to ignore the "static"). I guess that's something
to verify vs the C and POSIX standards...
> generate initialization code. This may come from whatever is on the stack
> instead of memory, which is assumed for globals, but not for stack
> variables.
static variables aren't on the stack...
--
Thomas E. Dickey <dickey@invisible-island.net>
https://invisible-island.net
ftp://ftp.invisible-island.net
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