On Wednesday, 11 July 2012 at 15:28:41 UTC, Andrei Alexandrescu
wrote:
On 7/11/12 11:11 AM, Max Samukha wrote:
On Wednesday, 11 July 2012 at 12:39:03 UTC, Andrei
Alexandrescu wrote:
I gave evidence on a large, high quality C++ codebase that
the use of
mutable (which is the solution of choice for memoization,
caching, and
lazy computation) is extremely scarce.
What evidence do you have for your prediction?
Andrei
Qt codebase (large, high quality) has around 1500 'mutable'
keyword
occurrences.
How many lines total?
Andrei
1512. Obtained by grepping the src directory of Qt 4.8.0, so the
number includes duplicates, comments, etc. I think that even if
the actual number is lower by an order, some 100 types using
mutable still do not qualify for 'extremely scarce'. If I have
time (which is unlikely), I will probably analyse the codebase
for the actual number.
