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A standard identifier is a reserved word. Keywords such as for, if, goto, return, continue, break, do, while, final, extern, static and so on are all reserved. Fundamental data types and modifiers such as void, int, char, wchar_t, double, float, long, short, signed, unsigned, const, mutable, constexpr and so on are also reserved. A user-defined identifier is any name (function, class, namespace or alias) that is not a reserved word.
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What is main difference between macro and subroutins?
marco expand where it invoked ,subroutine will go where the subroutine is defined....
Are there any difference in the way a class method is defined depending on here it is defined?
Yes, there is a difference in the way a class method is defined depending on where it is declared.
Difference between identifier and reserved word?
A keyword is a reserved word, used by the programming language to establish actions or commands. For example, in the line: while (value < 100) { //block of code } "while" is a keyword, used to indicate iteration (loop) of what's inside the block of code. variables are user-defined words that are able to hold values. In the previous case, "value" can be thought as a variable.
What is the difference between Built in Function and User Defined Function?
Built-in functions are functions that are provided for you by the standard includes. User-defined functions are those that you write yourself. Third-party functions are those that are written for you, but that are not provided by the standard includes.
Define voltage in electrical?
Voltage (of a circuit) as defined in the NEC: n. The greatest root-mean-square(rms) (effective) difference of potential between any two conductors of the circuit concerned. Voltage as defined by Webster's: n. Electromotive force or potential difference, usually expressed in volts.
