    beg_interval     1924 libglibc/regex.c   const char *beg_interval;
    beg_interval     2618 libglibc/regex.c                 beg_interval = p - 1;
    beg_interval     2756 libglibc/regex.c                 beg_interval = NULL;
    beg_interval     2762 libglibc/regex.c                assert (beg_interval);
    beg_interval     2763 libglibc/regex.c                p = beg_interval;
    beg_interval     2764 libglibc/regex.c                beg_interval = NULL;