Ghost’s C library supplies the userspace runtime, allocation, standard I/O,
strings, character handling, directory iteration and file-descriptor operations.
It calls libapi for kernel services. Mathematical routines and selected support
headers derive from musl.
#include <stdio.h>
FILE* file = fopen("/user/example.txt", "r");
if(file) {
char line[128];
while(fgets(line, sizeof(line), file))
fputs(line, stdout);
fclose(file);
}Compatibility is partial rather than a complete C/POSIX environment. Rename and several calendar-time, locale and wide-character operations are unavailable or stubbed. Header availability does not imply that every declared function is supported; check the relevant implementation when porting software.