gcc supports type checks for printf parameters which can catch some hard
to reproduce bugs. Possible bugs happen when the parameter value is
intepreted differently to the variable value.
Example warnings follow
../library/LuaWrapper.cpp:1011:86: warning: format ‘%llu’ expects argument
of type ‘long long unsigned int’, but argument 3 has type ‘uint64_t
{aka long unsigned int}’ [-Wformat=]
../plugins/follow.cpp:159:35: warning: format not a string literal and no
format arguments [-Wformat-security]
All platforms seems to either have compiler supporting c++14. Windows
already requires msvc2015 that supports c++14 which should make it
minimal issue to require c++14 support from all compilers because gcc
is pretty easy to upgrade.
vsnprintf man page claims:
"If an output error is encountered, a negative value is returned."
That means we has to call vsnprintf twice at most to have whole output
written to a string. But in case of error we return an empty string.
The code also optimizes an expected common case of outputting single
line with a small stack allocated buffer. If the stack buffer is too
small then it uses std::string::resize to allocate exactly enough memory
and writes directly to std::string.
Second call could use vsprintf because memory is known to be large
enough. But I think that difference isn't detectable outside micro
benchmarks.
YCM flag function returning None result an error from YCM python code
everytime a file is opened. The None return can happen if database
lookup fails for any reason. To let YCM have resonable flags without
database entry the .ycm_extra_conf.py can include default fallback
flags.
Changes include
* table.getn(obj) -> #obj
* Making sure string.rep gets an integer parameter
* Optimized profiling hooks (call profiler cost from factor 40 to 10)
* Specialized parameter name lookup code for c++ __index metamod calls
* Collect source lines in time sampling variant
* Simplified prevent to always filter all children
Pepperfish Profiler can produce time sampled profiles and call entry
exit profiles. Code is verbatim copy from the lua wiki [1]. This commit
won't work alone but it exists to give author credit correctly to
Daniel.
[1] http://lua-users.org/wiki/PepperfishProfiler
Authors:
Daniel Silverstone <dsilvers@pepperfish.net>
Tom Spilman <tom@sickheadgames.com>
Ben Wilhelm <zorba-pepperfish@pavlovian.net>
PatrikLundell
Pauli
lethosor
Quietust
Daniel Silverstone
Vitaly Pronkin