Differences between bcopy and memcpy

A very basic problem encountered during network programming today is the comparison of bcopy and memcpy.

First, describe the two functions:

Bcopy: http://man7.org/linux/man-pages/man3/bcopy.3.html

Memcpy: http://man7.org/linux/man-pages/man3/memcpy.3.html.

 

Pay special attention to the two parameters (the source string and target string are in the opposite position, please remember)

 

Note the following:

Bcopy has been enabled in the new POSIX standard, and all new programs use memcpy.

 

I found a half-day error in the program. It turned out to be a disaster caused by the parameter location. It was really painstaking.

Differences between bcopy and memcpy