dealing with endianness in c++

Question

I am working on translating a system from python to c++. I need to be able to perform actions in c++ that are generally performed by using Python\'s struct.unpack

Answer 1

Unpack the string one byte at a time.

unsigned char *str;
unsigned int result;

result =  *str++ << 24;
result |= *str++ << 16;
result |= *str++ << 8;
result |= *str++;