capl how to change byte format to char fomat

Question

I want to change byte value to char value in capl. Using MD5 the input value is char and the result value is byte I want to put the result value into the input value However, the format is different and cannot be used I want to know the solution

Answer 1

If you are using arrays, you will need to define a second array of the correct type byte of the correct length. Then use memcpy to copy the char into the byte array.

char carr[5] = {0, -1, -2, -3, -4}; //char is signed!
byte barr[5];

memcpy (barr, carr, elCount(barr));
//data is now copied into barr, and can be used in a function that accepts byte arrays

If you are using normal scalar variables, you also can just us a normal cast:

byte b;
char c = -5;
b = (byte) c;