The libc library contains standard functions that C programs can use. The following header files are included in the libc library:
- alloca.h
- Allocates space in the stack.
- assert.h
- Diagnostics code
- ctype.h
- Character operations
- errno.h
- System errors.
- inttypes.h
- Integer type conversions
- math.h
- Mathematics
- setjmp.h
- Non-local go to code
- stdint.h
- Standard integer types
- stdio.h
- Standard I/O facilities
- stdlib.h
- General utilities functions
- time.h
- Time function