[Python-Dev] PEP 572: Usage of assignment expressions in C

[Victor Stinner]

2018-04-28 17:45 GMT+02:00 Antoine Pitrou <solipsis at pitrou.net>:
>   // Read up to n bytes from file descriptor
>   if ((bytes_read = read(fd, buf, n)) == -1) {
>       // Error occurred while reading, do something
>   }

About C, there is a popular coding style (not used by our PEP 7) for comparison:

   if (-1 == n) ...

The advantage is to prevent typo mistakes because "-1 = n" is a syntax error.

Victor