c++ Programming Glossary: returnWhat is the copy-and-swap idiom? http://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom 0 3 std copy other.mArray other.mArray mSize mArray 3 return this And we say we're finished this now manages an array without.. non throwing delete mArray mSize newSize mArray newArray return this The code has expanded Which leads us to the third problem.. dumb_array operator dumb_array other 1 swap this other 2 return this And that's it With one fell swoop all three problems are..
http://stackoverflow.com/questions/4172722/what-is-the-rule-of-three operator const person that name that.name age that.age return this 3. destructor ~person Memberwise copying is exactly what.. strlen that.name 1 strcpy name that.name age that.age return this Note the difference between initialization and assignment.. that.name delete name name local_name age that.age return this This also takes care of self assignment without an explicit..
http://stackoverflow.com/questions/4421706/operator-overloading operator for reference X X operator X rhs swap rhs return this Input and Output Operators The stream operators among the.. operator std ostream os const T obj write obj to stream return os std istream operator std istream is T obj read obj from stream.. object of T found in stream is.setstate std ios failbit return is When implementing operator manually setting the stream 䏭..
Can a local variable's memory be accessed outside its scope? http://stackoverflow.com/questions/6441218/can-a-local-variables-memory-be-accessed-outside-its-scope its scope I have the following code. int foo int a 5 return a int main int p foo cout p p 8 cout p And the code is just.. to give back your key. You steal the key A week later you return to the hotel do not check in sneak into your old room with your.. there simply is no way to take the address of a local and return it or store it for later. You can take the address of a local..
http://stackoverflow.com/questions/1032243/should-i-return-stdstrings c string return value share improve this question Return the string. I think the better abstraction is worth it. Until..
How to render offscreen on OpenGL? [duplicate] http://stackoverflow.com/questions/12157646/how-to-render-offscreen-on-opengl 0 0 width height GL_BGRA GL_UNSIGNED_BYTE data 0 Return to onscreen rendering glBindFramebuffer GL_DRAW_FRAMEBUFFER..
Algorithm - How to delete duplicate elements in a list efficiently? http://stackoverflow.com/questions/1801459/algorithm-how-to-delete-duplicate-elements-in-a-list-efficiently add it to M and to S. Repeat for all elements in L. Return M. In Python L 2 1 4 3 5 1 2 1 1 6 5 S set M for e in L .....
C++ - Arguments for Exceptions over Return Codes http://stackoverflow.com/questions/1849490/c-arguments-for-exceptions-over-return-codes Arguments for Exceptions over Return Codes I'm having a discussion about which way to go in a new..
What should main() return in C and C++? http://stackoverflow.com/questions/204476/what-should-main-return-in-c-and-c a very good answer indeed. Styles of main functions in C Return type of main method in C Related C int main int argc char argv..
Generate random numbers following a normal distribution in C/C++ http://stackoverflow.com/questions/2325472/generate-random-numbers-following-a-normal-distribution-in-c-c and from those you get two normally distributed numbers. Return one save the other for the next request of a random number...
C/C++ function definitions without assembly http://stackoverflow.com/questions/2442966/c-c-function-definitions-without-assembly write in libc posix unistd.h Write N bytes of BUF to FD. Return the number written or 1. This function is a cancellation point..
Returning object from function http://stackoverflow.com/questions/2616107/returning-object-from-function object from function I am really confused now on how and.. reference goes out of scope. this reply quotes the canon b Return Value Optimization wikipedia the two copies local return value..
When to return a pointer, scalar and reference in C++? http://stackoverflow.com/questions/3431484/when-to-return-a-pointer-scalar-and-reference-in-c the client can use it. Therefore I'm left with two options Return a pointer Return a scalar Returning a pointer would look like.. it. Therefore I'm left with two options Return a pointer Return a scalar Returning a pointer would look like this MyType MyClass.. I'm left with two options Return a pointer Return a scalar Returning a pointer would look like this MyType MyClass getSomeAttribute..
How to return an fstream (C++0x) http://stackoverflow.com/questions/4825851/how-to-return-an-fstream-c0x I have a bad feeling this is just due to my compiler doing Return Value Optimization RTO on auto os test . Indeed if modify to..
Flags to enable thorough and verbose g++ warnings http://stackoverflow.com/questions/5088460/flags-to-enable-thorough-and-verbose-g-warnings when using a range based for loop on a vector of classes. Return value optimization should take care of any negative effects..
How to implement the factory pattern in C++ correctly http://stackoverflow.com/questions/5120768/how-to-implement-the-factory-pattern-in-c-correctly of the factory to be restrained to dynamic allocation. 2 Return by value OK so we know that 1 is cool when we want dynamic allocation...
Is there an implicit default constructor in C++? http://stackoverflow.com/questions/563221/is-there-an-implicit-default-constructor-in-c of each member variable in the order of declaration. Return a reference to this. Note Copy Construction Assignment operator..
http://stackoverflow.com/questions/7492180/c-abi-issues-list before or after main Generic. Parameter passing locations Return value location Member alignment Padding Register usage which..
What is a lambda expression in C++11? http://stackoverflow.com/questions/7627098/what-is-a-lambda-expression-in-c11 functions are just syntactic sugar for anonymous functors. Return types In simple cases the return type of the lambda is deduced..
Order of evaluation of arguments using std::cout http://stackoverflow.com/questions/7718508/order-of-evaluation-of-arguments-using-stdcout int main double test 0.0 std cout Value of test is t test tReturn value of function is foo test tValue of test test std endl return.. test std endl return 0 The output is Value of test is 1 Return value of function is 1 Value of test 0 Seeing this I would assume..
Embed assembler to manipulate 64-bit registers in portable C++ http://stackoverflow.com/questions/7859568/embed-assembler-to-manipulate-64-bit-registers-in-portable-c ebx result xor eax eax mov ecx x add ebx ecx adc carry eax Return the carry flag return carry Now the g version int BNASM_AddScalar.. x int carry 0 asm volatile addl ecx edx n adcl 0 eax n Return the carry flag a carry Output and input carry in eax d result..
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