Re: Review of sizeof usage

FWIW, I too have come to prefer the variable-based form, for
readability reasons. One reason is that it is easier to quickly
recognize and verify the idiom when the redundancy is in the form of
two identical names close together:

svn_my_type_t *my_var;
[...]
foo(my_var, sizeof(*my_var)); <== 'my_var' twice

than when the nearby pairing uses two different names and the
repetition of the type name is widely separated:

svn_my_type_t *my_var;
[...]
foo(my_var, sizeof(svn_my_type_t));

especially when the declaration was separate from the statement that uses it.

Another reason is that the variable name is usually shorter, the
entire statement often fitting on one line, whereas the type name is
usually a public, user-defined type (or pointer to such) with a longer
name.

- Julian
Received on 2015-08-13 20:20:29 CEST