| C Tutorial | Char constants | |||
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Introduction to C language Integer types Char constants Int constants Type combination and promotion Int overflow Floating point types Comments Variables Assignment operator Truncation Int vs float arithmatic Mathematical operators Unary Increment Operators Pre and Post Variations C Programming Cleverness and Ego Issues Relational Operators Logical Operators Bitwise Operators Other Assignment Operators
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char Constants A char constant is written with single quotes (') like 'A' or 'z'. The char constant 'A' is really just a synonym for the ordinary integer value 65 which is the ASCII value for 4 uppercase 'A'. There are special case char constants, such as '\t' for tab, for characters which are not convenient to type on a keyboard.
'A' uppercase 'A' character
'\n' newline character
'\t' tab character
'\0' the "null" character -- integer value 0 (different from the char digit '0')
'\012' the character with value 12 in octal, which is decimal 10
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