Front page | perl.perl5.porters |
Postings from April 2000
> From: Richard Foley [mailto:Richard.Foley@m.dasa.de]
> Tom Christiansen wrote:
> >
> > >How about the much less inflamatory, and much more useful:
> >
> > How about addressing the real issue?
> >
> > % perl -lwe '@a[0,2] = (0,2); print "@a $a", "$a", $a'
> > Use of uninitialized value in join at -e line 1.
> > Use of uninitialized value in concatenation (.) at -e line 1.
> > Use of uninitialized value in string at -e line 1.
> > Use of uninitialized value in print at -e line 1.
> >
> > Those are all different cases. They should not be conflated just
> > to stick a pacifier in the mouths of the confused, because that
> It seems a shame to have to use another language, just
> because a couple of
> warnings confuse once in a while.
Why so many people are confusing? If one have brain then such warnings may
be understood clearly. If that warning is misleading, why other compiler's
warnings are easily understood?
Look:
a.c
#include <stdio.h>
typedef int my_type;
void main () {
my_type a;
printf(a);
}
MSVC++:
d:\TESTS\x>cl a.c
Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 12.00.8168 for 80x86
Copyright (C) Microsoft Corp 1984-1998. All rights reserved.
a.c
a.c(5) : warning C4047: 'function' : 'const char *' differs in levels of
indirection from 'int '
a.c(5) : warning C4024: 'printf' : different types for formal and actual
parameter 1
a.c(5) : warning C4700: local variable 'a' used without having been
initialized
Microsoft (R) Incremental Linker Version 6.00.8447
Copyright (C) Microsoft Corp 1992-1998. All rights reserved.
/out:a.exe
a.obj
BROKEN: a is 'my_type', not 'int '
GCC:
d:\TESTS\x>gcc a.c
a.c: In function `main':
a.c:5: warning: passing arg 1 of `printf' makes pointer from integer without
a cast
a.c:3: warning: return type of `main' is not `int'
BROKEN: a is 'my_type', not integer
Thread Previous
|
Thread Next