[Bug c++/39040] New: Redeclaration
mahesh dot balasubramanian at wipro dot com
gcc-bugzilla@gcc.gnu.org
Fri Jan 30 05:01:00 GMT 2009
Hello,
I found a strange behavior of the following code.
void fn(int x, int y){
if(int temp = ( x > y ? (x /y) : (x % y))){
cout << temp;
}
else{
double temp = x / y; // ill-formed, redeclaration of temp
cout << temp;
}
}
int main(int argc, char **argv){
fn(2, 3);
}
According to $6.4/3 (14882_1998), This code is ill-formed. But g++ does not
through any error or warning.
But comeau and vc++ are throwing errors.
$6.4/3
A name introduced by a declaration in a condition (either introduced by the
type-specifier-seq or the declarator of the condition) is in scope from its
point of declaration until the end of the substatements controlled by the
condition. If the name is re-declared in the outermost block of a substatement
controlled by the condition, the declaration that re-declares the name is
ill-formed.
Thanks and Regards,
Mahesh. B
--
Summary: Redeclaration
Product: gcc
Version: 4.1.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: mahesh dot balasubramanian at wipro dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39040
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