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? The function scanf() is used for formatted input from the standard input and provides many of the conversion facilities.
? It is used for formatted output to standard output device, that is, screen. The format specification string and the data to be output, are the arguments (parameters) to the printf() function.
Type qualifier adds properties to an identifier. Type qualifiers describe the manner in which the object will be modified. The application of qualifiers to an object does not affect the range or the arithmetic properties of the object.
The two type qualifiers provided by C are :
? const
? volatile
No, the string constants donot have a corresponding numerical value.
Operator precedence describes the order in which C evaluates different operators in a complex expression.
An operator is a symbol, which instructs the computer to perform the specified manipulation over some data. The rich set of operators available in C enable us to write efficient and concise programs and this fact serves to set C apart from any other programming languages.
? Assignment operator
? Arithmetic operators
? Relational operators
? Logical operators
? Increment/Decrement operators
? Shorthand arithmetic assignment operators
? Conditional operator
? Bitwise operators
? Sizeof() operator
? Comma operator
Perhaps the most unusual operator in C language is one called the conditional expression operator. Unlike all other operators in C which are either unary or binary operators the conditional expression operator is a ternary operator; that is, it takes three operands. The two symbols that are used to denote this operator are the question mark (?) and the colon (:). The first operand is placed before the ?, the second between the ? and the and the third after the :.
An operator is a symbol that operates on a certain data type.In C, the ?=? symbol is known as the assignment operator. It sots the value of the variable on the left hand side of it to that of the right hand side of it.
C supports a variety of assignment statements. These are given below :
? Simple assignment statement
? Multiple assignment statement
? Arithmetic assignment statement