GLib.ascii_strtoull

function ascii_strtoull(nptr: String, endptr: String, base: Number(guint)): Number(guint64) {
    // Gjs wrapper for g_ascii_strtoull()
}
  

Converts a string to a #guint64 value. This function behaves like the standard strtoull() function does in the C locale. It does this without actually changing the current locale, since that would not be thread-safe.

This function is typically used when reading configuration files or other non-user input that should be locale independent. To handle input from the user you should normally use the locale-sensitive system strtoull() function.

If the correct value would cause overflow, %G_MAXUINT64 is returned, and `ERANGE` is stored in `errno`. If the base is outside the valid range, zero is returned, and `EINVAL` is stored in `errno`. If the string conversion fails, zero is returned, and endptr returns nptr (if endptr is non-null).

Since 2.2