2013年7月29日 · 3. HIGH LEVEL SEMANTICS. Finally, at a higher level, semantics is concerned with what the code is intended to achieve - the reason that the program is being written. This can be expressed as pseudo-code which could be implemented in any …

2010年7月19日 · Operational Semantics is probably closest to the way most people informally model the semantics, having each fragment of code run through an interpreter and changing the state of an abstract routine. This approach breaks down in many models where concurrency or nondeterminism, etc., so there are other sematics better suited to these situations.

2016年8月11日 · HTML5 semantics is what a well-formed HTML5 description is supposed to put on the page. "Semantic web" is, generally, a web where links and searches are on meaning, not words. The semantically correct way to do something is how to do it so it means the right thing.

2017年7月5日 · The word semantics is used to describe an underlying meaning of something. You can say that an operation has the move semantics when it transfers an object state from one object to another. In reality of course what happens is some pointers are probably copied over and that's it, but semantically your object has been moved.

2022年4月28日 · Semantics and pragmatics both study the meaning of language. Semantics focuses on literal meaning, while pragmatics examines how meaning is influenced by context, intention, and speaker beliefs.

2016年11月4日 · Semantics is about meaning. It includes: the static semantics, which is the part that can be ascertained at compile time, including data typing, whether all variables are declared, which declaration applies to which variable in the case of scoping, what their type is, whether functions and methods are called with correct calling sequences, whether assignments are …

2018年5月6日 · Move semantics allows us to keep value semantics, but at the same time gain the performance of reference semantics in those cases where the value of the original (copied-from) object is unimportant to program logic. EDIT: Howard added some comment that really worth mentioning. By definition, move semantics acts more like reference semantics ...

2010年2月28日 · Formal semantics describe semantics in - well, a formal way - using notation which expresses the meaning of things in an unambiguous way. It is the opposite of informal semantics, which is essentially just describing everything in plain English.

2014年10月1日 · Simply, (old) glsl used this varying for variables naming (please note that varying is now deprecated). An obvious benefit of semantic, you don't need the same variable names between stages, so the DirectX pipeline does matching via semantics instead of variable name, and rearranges data as long as you have a compatible layout.

Move semantics can help, but are more powerful than that. Move semantics are handy when you want to do something different whether the passed object is a temporary (it then binds to a rvalue reference) or a "standard" object with a name (a so called const lvalue).