The basic coding parameters are defined usingmacros, and an executable can be made by compiling using macrodefinitions defining the values of the following names in the file"ecc.h":The important compile time parameter is the number of parity bytes,specified by the #define NPAR.The library is shipped with #define NPAR 4The error-correction routines are polynomial in the number ofparity bytes, so try to keep NPAR small for high performance.Remember, the sum of the message length (in bytes) plus parity bytesmust be less than or equal to 255.