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Re: Help restricting args of an intrinsic function
- From: Etienne Lorrain <etienne_lorrain at yahoo dot fr>
- To: gcc at gcc dot gnu dot org
- Date: Tue, 3 Feb 2004 15:18:53 +0100 (CET)
- Subject: Re: Help restricting args of an intrinsic function
On Monday, February 2, 2004, at 04:35 PM, Daniel Jacobowitz wrote:
> const int ci = 5;
> int a1[ci];
> will not compile, because ci is not an integral constant-expression.
Mike Stump wrote:
> Does anyone know why the above isn't supported in C? Certainly
> the obviousness of it escapes me. My inclination is to fix the
> standard, not the compiler.
In C, the keyword "const" means "not modifyed by the C", but it has to
be a real variable - in case it is modifyed by the program loader or
linker (for instance in assembler) before the C program starts.
The C standard should have defined the real constant:
inline const int size_of_array = 5;
but someone forgot.
I could also have replaced a lot of #define and #if/#ifdef by C
constructs, like "inline const struct { ...; } configuration;".
A dreamer...
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