What does static mean in ANSI-C [duplicate]

Just as a brief answer, there are two usages for the static keyword when defining variables: 1- Variables defined in the file scope with static keyword, i.e. defined outside functions will be visible only within that file. Any attempt to access them from other files will result in unresolved symbol at link time. 2- Variables … Read more

Advantages of classes with only static methods in C++

If you want to create a collection of utility functions without clobbering the global namespace, you should just create regular functions in their own namespace: namespace utility { int helper1(); void helper2(); }; You probably don’t want to make them static functions either. Within the context of a non-member function (as opposed to a member … Read more

How do static variables in lambda function objects work?

tl;dr version at the bottom. §5.1.2 [expr.prim.lambda] p1 lambda-expression: lambda-introducer lambda-declaratoropt compound-statement p3 The type of the lambda-expression (which is also the type of the closure object) is a unique, unnamed nonunion class type — called the closure type — whose properties are described below. This class type is not an aggregate (8.5.1). The closure … Read more

Why doesn’t C# support local static variables like C does? [closed]

Because they screwed up, and left out a useful feature to suit themselves. All the arguments about how you should code, and what’s smart, and you should reconsider your way of life, are pompous defensive excuses. Sure, C# is pure, and whatchamacallit-oriented. That’s why they auto-generate persistent locals for lambda functions. It’s all so complicated. … Read more