C programming question

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What is this "technique" called with the type/variable assignment nestled between the function header and the body? Why would someone do this? thanks

C++

void MyFunction (void) //function header

  int i;     
 double d;

 {
 
// body

}

Posted 25-Feb-15 14:07pm

shiftwik

Updated 25-Feb-15 15:22pm

PIEBALDconsult

v2

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PIEBALDconsult · Accepted Answer · 2015-02-25T14:53:00

Very very old style C. Pre-ANSI, K&R style.

Here's what DEC C V6.0-001 on OpenVMS Alpha V7.2 has to say about it:

"
int
^
The function "main" is defined using the old style K&R syntax. The ANSI C Standard has marked this syntax as obsolescent, and it is
not supported in C++. Consider using the new ANSI C prototype syntax.
at line number 4 in file MY$ROOT:[000000]TEST.C;5
Description: The function uses an old style function definition. Digital recommends that old style function definitions be replaced
by prototype-format definitions.
User Action: Recode the function definition to use the recommended prototype-format definition.
"