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std::vector performance regression when enabling C++11
I have found an interesting performance regression in a small C++ snippet, when I enable C++11:
1 Answer
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Tools to get a pictorial function call graph of code [closed]
...m.
Advantages of dynamic methods:
catches function pointers and virtual C++ calls. These are present in large numbers in any non-trivial software.
Disadvantages of dynamic methods:
you have to run the program, which might be slow, or require a setup that you don't have, e.g. cross-compilation...
Most Useful Attributes [closed]
...ration variables, the compiler allows this for enumerations regardless. My C++ background showing through... sigh
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How do I get the application exit code from a Windows command line?
...tually exits, its exit status is lost.
Instead of using the console-based C++ launcher mentioned elsewhere, though, a simpler alternative is to start a windowed application using the command prompt's START /WAIT command. This will start the windowed application, wait for it to exit, and then retur...
How to print (using cout) a number in binary form?
...ed value, which works out the same as two's complement. Strictly speaking, C++ does not guarantee two's complement arithmetic, and also the -58 >> 3 operation in your example is undefined.
– Potatoswatter
Sep 8 '11 at 14:46
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Is there a standardized method to swap two variables in Python?
... @Catbuilts I'm not sure, but it might help to read up on how C++ pointers work. Whereas Python tries to automatically do things the best way for you, C++ actually gives you all the options to do things in all the possible right and wrong ways, so that's a good starting point for learn...
How to initialize std::vector from C-style array?
...entation of assign is certainly free to use them to optimize; at least in VC++, it does indeed do just that.
– Pavel Minaev
Mar 14 '10 at 1:33
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Why do I get “unresolved external symbol” errors when using templates? [duplicate]
When I write C++ code for a class using templates and split the code between a source (CPP) file and a header (H) file, I get a whole lot of "unresolved external symbol" errors when it comes to linking the final executible, despite the object file being correctly built and included in the linking. ...
Static member functions error; How to properly write the signature?
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@narengi: because that's how the C++ standard defines the grammar.
– Oliver Charlesworth
Jan 27 '15 at 8:28
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public friend swap member function
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What is a friend function? There is confusion around this area.
Before C++ was standardized, friend functions did something called "friend name injection", where the code behaved as if if the function had been written in the surrounding namespace. For example, these were equivalent pre-standard:...