CRC - PNG Cyclic Redundancy Checksum

CRC computes the PNG CRC (cyclic redundancy checksum) for a string of bytes.

Reference:

G Randers-Pehrson, et al,
PNG (Portable Network Graphics) Specification,
Version 1.2, July 1999.

Files you may copy include:

• crc.c, the source code;
• crc.h, the include file;
• crc_prb.c, the calling program;
• crc_prb.out, the sample output.
• crc_file.c, a program which computes the PNG CRC of a file;

The list of routines includes:

• CRC computes the CRC of a string of bytes;
• MAKE_CRC_TABLE makes the table for a fast CRC computation;
• PRINT_CRC_TABLE prints the fast CRC table;
• UPDATE_CRC updates a running CRC.

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