Method findLine

src/e9tool/e9dwarf.cpp:162–177

* Find the line associated with the given address. */

 * Find the line associated with the given address.
 */
extern const Line *e9tool::findLine(const Lines &Ls, intptr_t addr)
{
    auto i = Ls.lower_bound(addr);
    if (i == Ls.end())
        return nullptr;
    if (i->second.lb == addr)
        return &i->second;
    auto j = Ls.begin();
    if (i == j)
        return nullptr;
    i--;
    if (i->second.lb <= addr && addr < i->second.ub)
        return &i->second;
    else
        return nullptr;
}