am ce88086c: am 105a934f: am 9514fca5: merge from open-source master

{

    int err;

    size_t pos = 0;

    // For absolute pathnames, that starts with leading '/'

    // use appropriate initial value.

    if (path.length() != 0 and path[0] == '/') pos++;

    while (true) {

        pos = path.find('/', pos);

        string p = path.substr(0, pos);