The ANSI C library is quite small. It originates in an era when 128KB of RAM was reasonably roomy. To this day, there are C libraries designed to fit comfortabl

The ANSI C library is quite small. It originates in an era when 128KB of RAM was reasonably roomy. To this day, there are C libraries designed to fit comfortably within that size. Most of the library code will never even be present anyway. Your (statically-linked) binary will simply contain those functions actually used, which is likely to be a small subset of what is available.