C - Revision history

Michael Murtaugh: /* Key differences from Python */

2010-10-20T10:06:27Z

Key differences from Python

← Older revision		Revision as of 12:06, 20 October 2010
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	* Whitespace (spaces, tabs, newlines) does ''not'' generally matter in C. Blocks (like for loops, if statements) are always indicated with curly braces {}. Indentation is still recommended for readability however.		* Whitespace (spaces, tabs, newlines) does ''not'' generally matter in C. Blocks (like for loops, if statements) are always indicated with curly braces {}. Indentation is still recommended for readability however.
	* Source must be compiled first before executing.		* Source must be compiled first before executing.
	* There is no "interactive" way of running C

	== Variables ==		== Variables ==

2010-10-20T10:06:05Z

Key differences from Python

← Older revision		Revision as of 12:06, 20 October 2010
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	* All variables have a fixed type (int, char, etc) and must be declared before use		* All variables have a fixed type (int, char, etc) and must be declared before use
	* Whitespace (spaces, tabs, newlines) does ''not'' generally matter in C. Blocks (like for loops, if statements) are always indicated with curly braces {}. Indentation is still recommended for readability however.		* Whitespace (spaces, tabs, newlines) does ''not'' generally matter in C. Blocks (like for loops, if statements) are always indicated with curly braces {}. Indentation is still recommended for readability however.
	* Source ~~code gets~~ compiled ~~to an executable~~		* Source must be compiled first before executing.
			* There is no "interactive" way of running C

	== Variables ==		== Variables ==

2010-10-20T10:05:17Z

Key differences from Python

← Older revision		Revision as of 12:05, 20 October 2010
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	For those coming to C from [[Python]], there are several important differences:		For those coming to C from [[Python]], there are several important differences:
	* All variables have a fixed type (int, char, etc) and must be declared before use		* All variables have a fixed type (int, char, etc) and must be declared before use
	* Whitespace (spaces, tabs, newlines) does ''not'' matter in C. Blocks (like for loops, if statements) are always indicated with curly braces {}.		* Whitespace (spaces, tabs, newlines) does ''not'' generally matter in C. Blocks (like for loops, if statements) are always indicated with curly braces {}. Indentation is still recommended for readability however.
	* Source code gets compiled to an executable		* Source code gets compiled to an executable

2010-10-20T10:04:47Z

Key differences from Python

← Older revision		Revision as of 12:04, 20 October 2010
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	For those coming to C from [[Python]], there are several important differences:		For those coming to C from [[Python]], there are several important differences:
	* All variables have a fixed type (int, char, etc) and must be declared before use		* All variables have a fixed type (int, char, etc) and must be declared before use
	* Whitespace (spaces, tabs, newlines) do ''not'' matter in C. Blocks (like for loops, if statements) are always indicated with curly braces {}.		* Whitespace (spaces, tabs, newlines) does ''not'' matter in C. Blocks (like for loops, if statements) are always indicated with curly braces {}.
	* Source code gets compiled to an executable		* Source code gets compiled to an executable

2010-10-20T10:03:34Z

Key differences from Python

← Older revision		Revision as of 12:03, 20 October 2010
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	== Key differences from Python ==		== Key differences from Python ==

			For those coming to C from [[Python]], there are several important differences:
	* All variables have a fixed type (int, char, etc) and must be declared before use		* All variables have a fixed type (int, char, etc) and must be declared before use
	* Whitespace (spaces, tabs, newlines) do ''not'' matter in C. Blocks (like for loops, if statements) are always indicated with curly braces {}.		* Whitespace (spaces, tabs, newlines) do ''not'' matter in C. Blocks (like for loops, if statements) are always indicated with curly braces {}.

2010-10-20T10:03:05Z

← Older revision		Revision as of 12:03, 20 October 2010
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	[[wikipedia:C (programming language)\|C]] is the core language of Unix and later GNU/Linux and the liberation of it's compiler software, ''[[wikipedia:Gnu Compiler Collection\|gcc]]'' (the Gnu's alternative to the proprietary Unix C compiler (''cc'')), a foundation of the Free Software movement.		[[wikipedia:C (programming language)\|C]] is the core language of Unix and later GNU/Linux and the liberation of it's compiler software, ''[[wikipedia:Gnu Compiler Collection\|gcc]]'' (the Gnu's alternative to the proprietary Unix C compiler (''cc'')), a foundation of the Free Software movement.

			== Key differences from Python ==

			* All variables have a fixed type (int, char, etc) and must be declared before use
			* Whitespace (spaces, tabs, newlines) do ''not'' matter in C. Blocks (like for loops, if statements) are always indicated with curly braces {}.
			* Source code gets compiled to an executable

	== Variables ==		== Variables ==

2010-10-20T10:01:08Z

while

2010-10-20T10:00:52Z

while

@@ Line 42: / Line 42: @@
   while (''expression'')
       ''statement''
 === for ===

2010-10-18T20:38:21Z

Variables

← Older revision		Revision as of 22:38, 18 October 2010
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	Variables in C are ''strictly typed'' meaning they always are one particular kind of representation of information (an integer number, a character, a string of text).		Variables in C are ''strictly typed'' meaning they always are one particular kind of representation of information (an integer number, a character, a string of text).

			* int
	* char		* char
	* int
	* float		=== int ===
	* double
			''int'''s or integers are for whole numbers (no fractional parts).

	<source lang="c">		<source lang="c">

2010-10-18T20:36:12Z

Loops: while and for

← Older revision		Revision as of 22:36, 18 October 2010
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	Abstractly a string in C is simply a pointer; that is, a numeric memory location pointing to the first character of the text in the memory.		Abstractly a string in C is simply a pointer; that is, a numeric memory location pointing to the first character of the text in the memory.

	== Loops~~: while and for~~ ==		== Loops ==

	=== while ===		=== while ===