Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
Ja, ist historisch so entstanden (length() in Anlehnung an die String"länge", size() zur Verwendbarkeit als STL-Container). Und ja, die Methoden sind identisch.