c++ Programming Glossary: meaningless

Examples of when a bitwise swap() is a bad idea?

http://stackoverflow.com/questions/11638271/examples-of-when-a-bitwise-swap-is-a-bad-idea

contains any object for which a straight byte copy is meaningless effectively recursing this definition or for which copying is..

Is any part of C++ syntax context sensitive? [duplicate]

http://stackoverflow.com/questions/1172939/is-any-part-of-c-syntax-context-sensitive

rules must be used to weed out syntactically valid but meaningless constructs. Finally here's the promised program. Line 21 is..

Is C++ context-free or context-sensitive?

http://stackoverflow.com/questions/14589346/is-c-context-free-or-context-sensitive

rules must be used to weed out syntactically valid but meaningless constructs. Finally here's the promised program. Line 21 is..

Does initialization entail lvalue-to-rvalue conversion? Is `int x = x;` UB?

http://stackoverflow.com/questions/14935722/does-initialization-entail-lvalue-to-rvalue-conversion-is-int-x-x-ub

Of course if no rvalue were expected this note would be meaningless. Another evidence is found in 4 8 as pointed out by Johannes..

Do-While and if-else statements in C/C++ macros

http://stackoverflow.com/questions/154136/do-while-and-if-else-statements-in-c-c-macros

seeing the code of the macro wrapped in what seems like a meaningless do while loop. Here are examples. #define FOO X do f X g X while..

Const correctness for value parameters

http://stackoverflow.com/questions/1724051/const-correctness-for-value-parameters

this is because the constness of a value parameter is meaningless as part of a interface definition. It is an implementation detail... for the pointer values of pointer parameters It is meaningless on a reference parameter since you can't reassign a reference...

Can main function call itself in C++?

http://stackoverflow.com/questions/2128321/can-main-function-call-itself-in-c

of the answers you should expect It means it's completely meaningless to try and define with certainty what the code snippet posted..

decltype, result_of, or typeof?

http://stackoverflow.com/questions/2763824/decltype-result-of-or-typeof

which is a function that takes a type and returns a meaningless invalid value of that type. declval can only be used in unevaluated..

Why does C++ support memberwise assignment of arrays within structs, but not generally?

http://stackoverflow.com/questions/3437110/why-does-c-support-memberwise-assignment-of-arrays-within-structs-but-not-gen

write auto V 10 V V 5 to rebase an array . This was now meaningless because the base of an array variable was not a lvalue anymore...

constant references with typedef and templates in c++

http://stackoverflow.com/questions/3801982/constant-references-with-typedef-and-templates-in-c

cannot be made const or volatile . This int const x is meaningless so adding cv qualifiers to references has no effect. Therefore..

How do I use arrays in C++?

http://stackoverflow.com/questions/4810664/how-do-i-use-arrays-in-c

will kick in because adding an array and an integer is meaningless there is no plus operation on arrays but adding a pointer and.. an assignment from an array to a pointer. Since this is meaningless but pointer to pointer assignment makes sense array to pointer..

What is the difference between the /Ox and /O2 compiler options?

http://stackoverflow.com/questions/5063334/what-is-the-difference-between-the-ox-and-o2-compiler-options

the additional compile time Or is this just a completely meaningless recommendation resulting from the fact that O2 is the default..

Is C# really slower than say C++?

http://stackoverflow.com/questions/5326269/is-c-sharp-really-slower-than-say-c

vice versa is likely to produce results somewhere between meaningless and misleading and the same would be true for most other pairs.. is pretty nearly guaranteed to produce results that are meaningless at best and outright misleading at worst. Bonus Topic Benchmarks..

C++11 introduced a standardized memory model. What does it mean? And how is it going to affect C++ programming?

http://stackoverflow.com/questions/6319146/c11-introduced-a-standardized-memory-model-what-does-it-mean-and-how-is-it-g

this is not even Undefined Behavior the question itself is meaningless because the standard does not contemplate anything called a..

What is the performance cost of having a virtual method in a C++ class?

http://stackoverflow.com/questions/667634/what-is-the-performance-cost-of-having-a-virtual-method-in-a-c-class

7ns overhead on a function that takes 500ms to execute is meaningless. The big cost of virtual functions isn't really the lookup of..

Why are references not reseatable in C++

http://stackoverflow.com/questions/728233/why-are-references-not-reseatable-in-c

this int i 3 int& const j i This is already legal C but meaningless. I restate my question like this What was the rationale behind..

Is it a good practice to use unions in C++?

http://stackoverflow.com/questions/943267/is-it-a-good-practice-to-use-unions-in-c

an int and try to read it back as a float you'll get a meaningless value. Unless memory usage is your primary consideration it..