On Thu, 2003-01-09 at 14:17, Peter Jay Salzman wrote:
> hola,
>
>
> #include <stdio.h>
> #include <math.h>
>
> int main(void)
> {
> int y1 = 9;
> printf("%d\n", y1);
> return 0;
> }
>
> p@satan% gcc -Wshadow blah.c -lm
> blah.c: In function `main':
> blah.c:6: warning: declaration of `y1' shadows global declaration
>
>
> the problem is that there's a global variable named "y1" in
> /usr/include/bits/mathcalls.h which gets included by math.h.
>
> so GNU glibc has ruined the variable name "y1".
>
> would this be considered a glibc bug? if they're going to ruin a
> variable name, they should at least document it like errno, _ and __
> type variables.Although its a rather poor choice for a name, it's not a bug strictly speaking, since it's declared publicly. Also, I believe it's actually a function -- see 'man y1'. dave
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