An identifier is a name. All names must be declared with a type.
1. identifiers beginning with a letter 2. identifiers beginning with an underscore
Yes they is different, C language are case-sensitive.
What is a scripting language? If you know the answer to this, then you can determine C# fits to the definition or not.
all keywords
Identifiers or symbols are the names you supply for variables,type,function and labels.Identifiers names must differ in spelling and case from any keyword.you cannot use keyword as an identifier.you can create an identifier by specifying it in the declaration of a variable,type or function.
Directories have nothing to do with a programming language.
Some languages have specific terms, however keyword or reserved word is the general terminology we use when referring to a programming language's primary vocabulary. That is; words that cannot be used as identifiers. However, some languages also have contextual keywords. For instance, C++ has final and override contextual keywords. These can be used as both identifiers and keywords, depending on the context. The only reason for this is that people were using these words as identifiers before they were introduced to the language (in C++11) and making them actual keywords would have broken a lot of older code.
This is the only possible way of parameter-passing in C language.
its just like a string of c++
Some languages have specific terms, however keyword or reserved word is the general terminology we use when referring to a programming language's primary vocabulary. That is; words that cannot be used as identifiers. However, some languages also have contextual keywords. For instance, C++ has final and override contextual keywords. These can be used as both identifiers and keywords, depending on the context. The only reason for this is that people were using these words as identifiers before they were introduced to the language (in C++11) and making them actual keywords would have broken a lot of older code.
C, o, u, e
Invalid variable names are identifiers that are not recognised by the language compiler. All user-defined identifiers (both names and type definitions) must be introduced to the compiler by a declaration. A definition is also a declaration, however a definition is not required to use a name, only the declaration. However, all declarations must be defined somewhere. Different programming languages have different conventions for naming identifier. However, in most languages, a name must always begin with a letter or an underscore, never a digit, because a leading digit usually signifies a value and would only complicate the language compiler's implementation. Case-sensitive languages, such as C treat 'name', 'Name' and 'NAME' as being different identifiers while case-insensitive languages will treat them as being the same identifier.