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Visual Studio support for new C / C++ standards?
...e this one:
https://devblogs.microsoft.com/cppblog/iso-c-standard-update/
Now, the Visual C++ compiler team receives the occasionally question as to why we haven’t implemented C99. It’s really based on interest from our users. Where we’ve received many requests for certain C99 features, we...
Repairing Postgresql after upgrading to OSX 10.7 Lion
...
It's a PATH issue. Mac OSX Lion includes Postgresql in the system now. If you do a which psql you'll likely see usr/bin/psql instead of usr/local/bin/psql which is HomeBrew's correct one. If you run brew doctor you should get a message stating that you need to add usr/local/bin to the head ...
ImportError: No module named site on Windows
..., it was a PYTHONHOME variable set to an invalid path... Removed that, and now it WORKS! It seems Steam's Alien Swarm mod added that.
– Timotei
Mar 1 '12 at 15:07
2
...
How to concatenate two strings in C++?
...td::string greet = s + " World"; //concatenation easy!
Easy, isn't it?
Now if you need char const * for some reason, such as when you want to pass to some function, then you can do this:
some_c_api(s.c_str(), s.size());
assuming this function is declared as:
some_c_api(char const *input, si...
“No newline at end of file” compiler warning
... foo.cpp. What if the last line of foo.h was a comment without a new line? Now the first line of foo.cpp is commented out. These are just a couple of examples of the types of problems that can creep up.
Just wanted to point any interested parties to James' answer below. While the above answer is ...
Does IE9 support console.log, and is it a real function?
...rowsers. I just spent a day working out why IE9 doesn't like my script and now I know why - it had a console.log in the very first step. Impossible to debug, since turning debug mode made this bug go away in an instant :P Thanks for clarification!!
– f055
Jul 1...
Is pass-by-value a reasonable default in C++11?
... void foo(T const&); and void foo(T&&);.
With that in mind, I now wrote my valued constructors as such:
class T {
U u;
V v;
public:
T(U u, V v)
: u(std::move(u))
, v(std::move(v))
{}
};
Otherwise, passing by reference to const still is reasonable.
...
Aborting a shell script if any command returns a non-zero value?
...ange:
#!/bin/bash
set -e
./configure | tee configure.log
make
... and now it does not work. This is explained here, and a workaround (Bash only) is provided:
#!/bin/bash
set -e
set -o pipefail
./configure | tee configure.log
make
...
C++ valarray vs. vector
I like vectors a lot. They're nifty and fast. But I know this thing called a valarray exists. Why would I use a valarray instead of a vector? I know valarrays have some syntactic sugar, but other than that, when are they useful?
...
git diff file against its last change
...possible to get git to produce a diff between a specific file as it exists now, and as it existed before the last commit that changed it?
...