Possible new check

[AnotherUser]

Dear Cppcheck team,

The following code was pointed out as an error using another checker
tool, as the class member is shadowed in the member function.

This may be of interest as a --inconclusive error, perhaps excluding
const members or member functions:

====
class A
{
private:
int a;
public:
A() { a=0;}
void set(int);
};

void A::set(int a)
{
a=1;
}
====

Neither gcc nor Cppcheck 1.74 does not flag this error, as far as I can see.

$ cppcheck --version
Cppcheck 1.74
$ g++ --version | head -n 1
g++ (Debian 5.4.0-6) 5.4.0 20160609
$ g++ test.cpp -Wall -o test -c
$cppcheck --inconclusive test.cpp
Checking test.cpp...

Thanks.

[raynebc]

The shadowing compiler warning can be enabled with "-Wshadow"

[Daniel Marjamäki]

Thanks!

There is this ticket about detecting shadow variables:
http://trac.cppcheck.net/ticket/1384