InvalidPrintfArgType when using std::abs() in printf()

[Félix-Antoine Constantin]

Hi,
The following code snippet triggers "invalidPrintfArgType_float" even if the return type of std::abs here is float.

int main()
{
    float f = -0.1f;
    printf("%f\n", std::abs(f));
    return 0;
}

cppcheck --enable=all snippet.cpp
portability: %f in format string (no. 1) requires 'double' but the argument type is 'int {aka signed int}'. [invalidPrintfArgType_float]
  printf("%f\n", std::abs(f));

[CHR]

Overloads are not handled very well, and the return type is given as int in std.cfg. See this ticket: https://trac.cppcheck.net/ticket/8084