how to get support for understanding the source code of cppcheck

[wy163]

HI, by reading the code, sometimes I can not know how to use the functions of the source code of cppcheck. For example,

bool Token::hasKnownValue() const

I don't know the meaning of that. If I'd like to code with cppcheck, is there any document to comment the interfaces of the main classes, like Token.
And I also tried to use IRC channel #cppcheck. But seems there is no discussion there. Does it still work?
Thanks!

[Daniel Marjamäki]

sorry for late reply.

An expression has a "known" value if its value is known at compile time.

Example:

void foo(int x) {
    if (x == 3) {
        a = x + 5;  // <- `x+5` has a known value, it is always 8
    }
    b = x + 5;  // <- `x+5` does not have a known value it is "possible" that it's 8.
}

so:

• "known": when expression always have a certain value in all possible execution paths
• "possible": when expression has a certain value in a possible execution path but not all paths

you can try with the chat again.. I am there sometimes.

But feel free to ask more questions here in the forum also.