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c++ Programming Glossary: subexpressionHow can I use the skipper ascii::space WITHOUT skipping eol? http://stackoverflow.com/questions/10465805/how-can-i-use-the-skipper-asciispace-without-skipping-eol to explicitely change the type of skipper used for the subexpression Recommended reading The Boost Spirit site has a nice article..
Why do we need to mark functions as constexpr? http://stackoverflow.com/questions/14472359/why-do-we-need-to-mark-functions-as-constexpr essentially such a function encapsulates only one subexpression and nothing else. If it's so hard to make a function that's..
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 to rvalue conversion occurs in an unevaluated operand or a subexpression thereof Clause 5 expr the value contained in the referenced..
Producing the fastest possible executable http://stackoverflow.com/questions/1668023/producing-the-fastest-possible-executable by using __restrict . 2 Help the compiler in common subexpression elimination dead code elimination by using __pure . 3 An introduction..
Are multiple mutations of the same variable within initializer lists undefined behavior pre C++11 http://stackoverflow.com/questions/19881803/are-multiple-mutations-of-the-same-variable-within-initializer-lists-undefined-b of evaluation of operands of individual operators and subexpressions of individual expressions and the order in which side effects.. paragraph shall be met for each allowable ordering of the subexpressions of a full expression otherwise the behavior is undefined. In.. count count as an expression and therefore each count as a subexpression so is this code undefined pre C 11 c language lawyer undefined..
Unsequenced value computations (a.k.a sequence points) http://stackoverflow.com/questions/3852768/unsequenced-value-computations-a-k-a-sequence-points and address glvalue of x . Now we need the value of the subexpression. We're done with the value computations for that subexpression... We're done with the value computations for that subexpression. The assignment side effect must be sequenced before the value.. is identical to the glvalue and prvalue result of the subexpression. We're out of the woods now. The whole expression has now been..
Undefined Behavior and Sequence Points http://stackoverflow.com/questions/4176328/undefined-behavior-and-sequence-points §1.9 16 A full expression is an expression that is not a subexpression of another expression. 1 Example int a 5 is a sequence point.. of a full expression can include the evaluation of subexpressions that are not lexically part of the full expression. For example.. are not lexically part of the full expression. For example subexpressions involved in evaluating default argument expressions 8.3.6 are..
http://stackoverflow.com/questions/4214153/lifetime-of-temporaries 2 1.9 12 A full expression is an expression that is not a subexpression of another expression. If a language construct is defined to..
Return value from local scope? http://stackoverflow.com/questions/4391033/return-value-from-local-scope be an expression followed by a semicolon the value of this subexpression serves as the value of the entire construct. In your example..
good practice in c++ (lazy evaluation) http://stackoverflow.com/questions/4613551/good-practice-in-c-lazy-evaluation chains are evaluated from left to right and if the first subexpression satisfies the condition no further subexpressions are evaluated... the first subexpression satisfies the condition no further subexpressions are evaluated. In your case if currentNode is null it will.. is null it will never get dereferenced by the second subexpression so the code is safe. As @jdv pointed out though this is called..
Accessing static member through invalid pointer: guaranteed to “work”? http://stackoverflow.com/questions/5248877/accessing-static-member-through-invalid-pointer-guaranteed-to-work an actual dereference. I read evaluation here as the subexpression is evaluated. That would mean that the unary is evaluated and..
http://stackoverflow.com/questions/6403055/object-destruction-in-c __________________________ full expression ___________ subexpression _______ subexpression some_function a b ^ both temporary objects.. full expression ___________ subexpression _______ subexpression some_function a b ^ both temporary objects are destructed here.. objects that are constructed during the evaluation of the subexpressions will be destructed at the semicolon. There are two such temporary..
Dereferencing an invalid pointer, then taking the address of the result http://stackoverflow.com/questions/7346634/dereferencing-an-invalid-pointer-then-taking-the-address-of-the-result not necessitate the lvalue to rvalue conversion of the subexpression ` ptr' according to expr.unary.op ISO IEC 14882 2011 page 109..
Is inline assembly language slower than native C++ code? http://stackoverflow.com/questions/9601427/is-inline-assembly-language-slower-than-native-c-code such as register allocation constant propagation common subexpression elimination across functions instruction scheduling across functions..
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