generating branch coverage data for lcov

Question

i\'m trying to use lcov for code coverage metrics, but I cannot get branches coverage to work.

Here\'s how i\'m using it:

g++ -ggdb3 --coverage src/read.         


        

Answer 1

Sorry, not so much an "idea" as a confirmation that you're doing everything correctly. Your exact commands worked on this simple code:

#include 
using namespace std;

bool foo(int i)
{
    if (i != 0) {
        return 12 / i;
    } else {
        return 0;
    }
}

int main(int argc, char** argv)
{
    cout << foo(argc) << endl;
    return 0;
}

The lcov coverage table has statistics for Lines, Functions, and Branches. Maybe double-check that you're actually looking at the correct output HTML?