check Directory Reference

## Files

file | check.c
| Single API to access different integrity checks.
file | check.h
| Internal API to different integrity check functions.
file | crc32_small.c
| CRC32 calculation (size-optimized)
file | crc32_table.c
| Precalculated CRC32 table with correct endianness.
file | crc32_tablegen.c
| Generate crc32_table_le.h and crc32_table_be.h.
file | crc64_small.c
| CRC64 calculation (size-optimized)
file | crc64_table.c
| Precalculated CRC64 table with correct endianness.
file | crc64_tablegen.c
| Generate crc64_table_le.h and crc64_table_be.h.
file | crc_macros.h
| Some endian-dependent macros for CRC32 and CRC64.
file | sha256.c
| SHA-256.