If I do a `typedef` in C or C++, when should I add `_t` at the end of typedef'ed type? [duplicate]

Answer 1

I use suffixes to increase readability: _t for typedef, and _e for enums since 25/30 years ... sometimes I use _st when typedef defines a struct.

I think that is good practice to get the code be readable and standardized, then I find right to use suffixes! Furthermore, to date, I have not found any POSIX official document stating that the suffix _t is reserved.

Old stdio.h contains _t ... See: grep -i "_t;" stdio.h :) I think POSIX standard is "a little" younger then C!