Function ImTextCountLines

imgui_tiny_app/imgui/imgui.cpp:2841–2853

}

int ImTextCountLines(const char* in_text, const char* in_text_end)
{
    if (in_text_end == NULL)
        in_text_end = in_text + ImStrlen(in_text); // FIXME-OPT: Not optimal approach, discourage use for now.
    int count = 0;
    while (in_text < in_text_end)
    {
        const char* line_end = (const char*)ImMemchr(in_text, '\n', in_text_end - in_text);
        in_text = line_end ? line_end + 1 : in_text_end;
        count++;
    }
    return count;
}

IM_MSVC_RUNTIME_CHECKS_RESTORE