The global declaration is when you declare that times is global def timeit(): global times # <- global declaration # … If a variable is declared global, it can’t be used before the declaration. In this case, I don’t think you need the declaration at all, because you’re not assigning to times, just modifying it.
What you’re experiencing is commonly known as “variable shadowing”. When you use := with any variable in an inner scope, including in statements like if and for despite the lack of braces, a new value and type are associated with that variable: n := “Example” //Prints the string variable `n` to standard output and // … Read more
You can do it like: string Camnr, Klantnr, Ordernr, Bonnr, Volgnr;// and so on. Camnr = Klantnr = Ordernr = Bonnr = Volgnr = string.Empty; First you have to define the variables and then you can use them.
I think what you’re looking for is chapter ยง6.2.7 from the C11 standard, Compatible type and composite type, (emphasis mine) All declarations that refer to the same object or function shall have compatible type; otherwise, the behavior is undefined. and related to compatible type, Two types have compatible type if their types are the same. … Read more
There is no shorthand in VBA unfortunately, The closest you will get is a purely visual thing using the : continuation character if you want it on one line for readability; Dim clientToTest As String: clientToTest = clientsToTest(i) Dim clientString As Variant: clientString = Split(clientToTest) Hint (summary of other answers/comments): Works with objects too (Excel … Read more
The fact that this rule is applicable in your case is not deliberate: It’s ultimately a result of keeping the grammar simple. There is no incentive to prohibit declarations such as yours, but there are great disincentives to complicate rules, especially if those are intricate as they are. In short, if you don’t want to … Read more
You cannot assign to arrays so basically you cannot do what you propose but in C99 you can do this: CGFloat *components; components = (CGFloat [8]) { 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.15 }; the ( ){ } operator is called the compound literal operator. It is a C99 feature. Note that in … Read more
The C standard says A declaration other than a static_assert declaration shall declare at least a declarator (other than the parameters of a function or the members of a structure or union), a tag, or the members of an enumeration. C++ says In a simple-declaration, the optional init-declarator-list can be omitted only when declaring a … Read more
Yes, that is prohibited. Just as otherwise you cannot declare variables of differing types in one declaration statement (edit: modulo the declarator modifiers that @MrLister mentions). You can declare structs for (struct { int a = 0; short b = 0; } d; d.a < 10; ++d.a, ++d.b ) {} C++03 code: for (struct { … Read more
The rule for prohibiting non-static members is in 7.1.6.4 clause 4: The auto type-specifier can also be used in declaring a variable in the condition of a selection statement (6.4) or an iteration statement (6.5), in the type-specifier-seq in the new-type-id or type-id of a new-expression (5.3.4), in a for-range-declaration, and in declaring a static … Read more