terminology - What does it mean when data is scalar? - Software ...
May 6, 2014 · The term "scalar" comes from linear algebra, where it is used to differentiate a single number from a vector or matrix. The meaning in computing is similar. It distinguishes a single value …
What are the "scalar fields" and "composite fields" in JAVA?
Jul 11, 2019 · The terms 'scalar type' or 'scalar field' are usually used to contrast them with compound types/fields. A compound type is easiest to define and it is a type that contains multiple distinct …
Recommended generic approach to checking scalar field presence in ...
May 29, 2023 · There are several questions related to presence field tracking of scalar fields in protobuf 3, but I didn't find any with generic default approach recommendation.
c++ - If you follow the rule of Zero, how will you debug the ...
Nov 28, 2017 · Most noticeable is if the destructor is called as part of a deletion on dynamic memory (delete). In the disassembly, one will see an actual function call to an address associated with …
Why exactly does Java not allow numeric conditionals like if(5 ...
May 12, 2017 · 0 Well, every scalar type in C, pointer, boolean (since C99), number (floating-point or not) and enumeration (due to direct mapping to numbers) has a "natural" falsey value, so that's good …
Paradigm for handling list of things or single elements
Sep 5, 2017 · @KilianFoth: I don't think this applies here. "Composite design pattern" would require to wrap the passed parameter in an additional class hierarchy, but additional wrappers is exactly what …
What is meant by a primitive data type?
It kind of depends on the language. For example, in languages like C and C++, you have a number of built-in scalar types - int, float, double, char, etc. These are "primitive" in the sense that they cannot …
Java - Why do we call an array a "vector"?
Aug 7, 2013 · The most famous vector space is R^n, the set of "arrays" of numbers with element-wise addition and multiplication. The set of real functions is also a vector space, but usually people don't …
c++ - Passing parameters that need to be copied by value or const ...
Dec 16, 2014 · @rwong: using "const reference" for function parameters in C++ is not more or less idiomatic than just passing parameters by value. It is typically (but not exclusively) used for passing …
Is there a reason "replace conditional with table" isn't a standard ...
Jul 29, 2025 · for speed you have to use low level arrays, not collections like lists and maps. Also, you have to avoid creating objects, unless there is a scalar optimization done by JIT.