unusedStructMember FP with structured bindings

[Samuel Poláček]

#include <vector>

struct Struct
{
    std::vector<int> member1;
    std::vector<int> member2;
};

void f(Struct* s)
{
    auto& [member1, member2] = *s;
    member1.push_back(42);
    member2.push_back(42);
}

int main()
{
    Struct s;
    f(&s);
    return 0;
}

$ cppcheck --version
Cppcheck 2.15.0


$ cppcheck --enable=all  test.cpp --suppress=missingIncludeSystem --suppress=checkersReport
Checking test.cpp ...
test.cpp:5:22: style: struct member 'Struct::member1' is never used. [unusedStructMember]
    std::vector<int> member1;
                     ^
test.cpp:6:22: style: struct member 'Struct::member2' is never used. [unusedStructMember]
    std::vector<int> member2;
                     ^

[Samuel Poláček]

This is a bit shorter and still produces the same error

struct Struct
{
    int member1;
};

int main()
{
    Struct s {};
    auto& [member1] = s;
    member1 = 42;

    return 0;
}

[CHR]

Thanks for reporting, ticket is here: https://trac.cppcheck.net/ticket/13107