overloading comparison operators

[AoZplusplus]

Hello. If I overload comparison operators inside a class, it there any way to make the left hand argument const? say, I could make "a" const in the following code outside "somecls"

bool operator< (const somecls& a, const somecls& b)
{
    return a.value < b.value;
}

but if I define the operator inside the cls

bool somecls::operator< (const somecls& b)
{
    return value < b.value;
}

in this case, the calling class itself does not seem to be const. Is there a way to do that?

Thanks in advance!

[D80DSL3A]

Yes there is:

bool somecls::operator< (const somecls& b) const
{
    return value < b.value;
}

[AoZplusplus]

Oooh! Right! Thank you!