C2007-09-20
else if statement in C
This sequence of if statements is the most general way of writing a multi-way decision. The expressions are evaluated in order; if an expression is true, the statement associated w
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C2007-09-20
The if else statement in C
The if-else statement is used to express decisions. Formally the syntax is
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Precedence and Order of Evaluation in C
Table below summarizes the rules for precedence and associativity of all operators, including those that we have not yet discussed. Operators on the same line have the same precede
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Conditional Expressions in C
The conditional expression, written with the ternary operator ``?:'', provides an alternate way to write this and similar constructions. In the expression
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Assignment Operators and Expressions in C
The assignment operator makes the code easier to understand, since the reader doesn't have to check painstakingly that two long expressions are indeed the same, or to wonder why th
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Bitwise Operators in C
C provides six operators for bit manipulation; these may only be applied to integral operands, that is, char, short, int, and long, whether signed or unsigned.
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C2007-09-20
Increment and Decrement Operators in C
C provides two unusual operators for incrementing and decrementing variables. The increment operator ++ adds 1 to its operand, while the decrement operator -- subtracts 1. We have
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Type Conversions in C (String to Integer, isdigit() etc)
When an operator has operands of different types, they are converted to a common type according to a small number of rules. In general, the only automatic conversions are those tha
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Relational and Logical Operators in C
The relational operators are > >= <
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Arithmetic Operators in C
The binary arithmetic operators are +, -, *, /, and the modulus operator %. Integer division truncates any fractional part. The expression
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Declarations in C
All variables must be declared before use, although certain declarations can be made implicitly by content. A declaration specifies a type, and contains a list of one or more varia
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Constants and escape sequences in C
An integer constant like 1234 is an int. A long constant is written with a terminal l (ell) or L, as in 123456789L; an integer constant too big to fit into an int will also be take
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