'global static'?! There is no such thing.
Scope refers to the accessibility of an object. A globally scoped object is available globally (to the entire program) while a locally scoped object is only available locally (to the containing function or class). In general, you want to avoid global objects whenever possible as it tends to introduce dependencies.
Extern and Global are the storage space in C program. Global provides us to access the variables from anywhere inside the program only whereas Extern provides us to access the variables from outside that program, i,e., some other program.
A global object is any object instantiated in the global namespace. The global namespace is anonymous, so if we don't explicitly specify a namespace prior to instantiating an object, that object will be instantiated in the global namespace: int x; // global namespace n { int x; // non-global }; To refer to the non-global, we must use namespace resolution: x = 42; // assign to the global n::x = 42; // assign to the non-global
The only case where a global variable is advantageous is when that global is a constant variable and it represents a truly global concept. The value of PI, for instance, is a truly global concept and it has a constant value. The exchange rate between dollars and Sterling is also a truly global concept, but it is non-constant and should not be declared global. Global (non-constant) variables are problematic because it can be difficult to track down all the places that interact with a global, especially if the global has external linkage. Even if that is not a problem in itself, a global cannot cater for both single-threaded and multi-threaded applications. If intended purely for single-threaded applications then there will be no synchronisation mechanism, thus it cannot be used in a multi-threaded application as this could lead to a data race. Conversely, if intended purely for multi-threaded applications, it will have a synchronisation mechanism but this could lead to performance issues on single-threaded applications where synchronisation is not required. In trivial applications, global variables can often be useful because the scope of a global can be well-defined. But in non-trivial applications, it becomes more difficult to limit the scope of a global. One way to limit the scope is to declare the global variable static, thus limiting its scope to the translation unit in which it is declared (static global variables cannot have external linkage). However, by limiting the scope, the variable is no longer a truly global concept.
that they are not the same thing
A local revision focuses on specific words, phrases, and sentences; a global revision addresses larger aspects of the work.
Global revision allows you to see the bigger picture while doing revisions. Global revision mainly focuses on thesis, organization, and evidence.
the difference between global and international strategy
what is the difference between international communication and global communication
During the global revision phase, you move entire chunks of writing around in your essay.
During the global revision phase, you move entire chunks of writing around in your essay.
After global revision
A revision of a particular description
spelling
Yes, it happens during global revision
Local revision involves making changes to a specific portion of a document or code without affecting the entire document, while global revision involves making changes that impact the entire document or code. Local revision is usually more focused and targeted, allowing for smaller scale edits, whereas global revision involves broader modifications that can affect multiple sections.