From 7e0f021a9aec35fd8e6725e87e3313b101d26f5e Mon Sep 17 00:00:00 2001 From: Tobias Klauser Date: Sun, 27 Jan 2008 11:37:44 +0100 Subject: Initial import (2.0.2-6) --- reference/C/SYNTAX/return.html | 134 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 134 insertions(+) create mode 100644 reference/C/SYNTAX/return.html (limited to 'reference/C/SYNTAX/return.html') diff --git a/reference/C/SYNTAX/return.html b/reference/C/SYNTAX/return.html new file mode 100644 index 0000000..68a9c2c --- /dev/null +++ b/reference/C/SYNTAX/return.html @@ -0,0 +1,134 @@ +The return statement + + + + +

+ +

The return statement

+ +

+return will return a value from a function to its caller. +The value returned is +the result of an expression. +

+As an Example this will print 7 + +

+ + + + +
+
+ + int func(void); + + main() + { + printf("%d \n", func()); + } + + int func(void) + { + return 7; + } +
+
+

+ +What ever follows the return statement will be evaluated as +an expression. So, to be consistant you could place brackets around +the return value. + +

+ + + + +
+
+ + return(7); +
+
+

+Or you could evaluate a formula on the statement: + +

+ + + + +
+
+ + return (Count-1); +
+
+

+Finally, if the function returns a void +the return statement is not required, but maybe needed to +leave a function before the end of the function block. Here +is an example. + +

+ + + + +
+
+ + void CheckDate(int) + + main() + { + CheckDate(40) + } + + void CheckDate(int Month) + { + if (Month > 31) + { + return; + } + + puts("Month is valid"); + } +
+
+

The return statement

See also: