関数レベルとメソッドレベルのメトリック

void foo(int i)
{
    /* This function has two independent paths, resulting in the metric being equal to ln(2) = 0.693 */
    if (i > 0) {
        /* This is one independent path */
    } else {
        /* This is the second independent path */
    }
}

void bar(int i)
{
    /* Nested control flow statements increase the number of paths in the branches where they are present,
       for every path at the beginning of that control flow statement */
    /* This function has nine independent paths, resulting in the metric being equal to ln(9) = 2.197 */
    if (i > 0) {
        /* First independent path */
        for (int j = 0; j < i; ++j) {
            /* Still the first independent path */
        }
        /* Second independent path (corresponding to j >= i) */
        /* There are two independent paths at the entry of this control flow statement.
           For each of them, the statement introduces 3 more independent paths */
        switch (i) {
            case 1:
                /* Still the part of the first or second original independent paths */
                break;
            case 2:
                /* 3-rd and 4-th independent paths */
                break;
            case 3:
                /* 5-th and 6-th independent paths */
                break;
            default:
                /* 7-th and 8-th independent paths */
                i++;
        }
    } else {
        /* 9-th independent path */
    }
}

他の関数またはメソッドを呼び出す (メトリック計算対象の) 一意の呼び出し元関数またはメソッドの数。同じ関数またはメソッドから同じ関数またはメソッドへの呼び出しが複数回行われた場合でも、このメトリックでは 1 としてカウントされます。

任意の関数またはメソッドに関する (メトリック計算対象の) 一意の呼び出しグラフ再帰の数。