• GCC es un compilador integrado del proyecto GNU para C, C++, Objective C y Fortran; es capaz de recibir un programa fuente en cualquiera de estos lenguajes y generar un programa ejecutable binario en el lenguaje de la máquina donde ha de correr. • Clang involucra a google y Apple • Clang es más rápido y usa menos memoria que GCC
and Globalization support for software applications • Unicode text handling, full character properties, and character set conversions; Unicode regular expressions; full Unicode sets; character, word, and line boundaries; Language sensitive collation and searching; normalization, upper and lowercase conversion, and script transliterations; comprehensive locale data and resource bundle architecture via the Common Locale Data Repository (CLDR); complex text layout for Arabic, Hebrew, Indic, and Thai; multi- calendar and time zones; and rule-based formatting and parsing of dates, times, numbers, currencies, and messages.