initialize function

[nospammax]

is this how i would make a function to clear arrays? and set every element in char arrays to \0?

void initialize(intarray[], chararray[])
{
 if(intarray[index] != 0)
 {
   intarray[index] = 0;
   index++;
 }
index = 0
 if(chararray[index] != \0)
 {
   chararray[index] = \0;
   index++;
 }
}

thanks

[CommonTater]

Your for loops are ill formed...

It's supposed to be for(InitialValue; ExitCondition; Counter)

For example...

int x;

for (x = 0; x < 10; x++)
  DoSomethingImpressive();

Also, you need to tell the function how big the arrays are...

void Intialiaze(int *Array, int ArraySize)
  {  // do it here
   }

[quzah]

No. You need to know the number of elements in the array, then count from zero to size-1.


Quzah.

[rajisankar]

Hi,

Ya..By following CommonTater's comment, it will work.One correction in your code.
 For representing NULL you should use '\0' instead of simply \0

Rajisankar

[Dibyayan Chakra]

just use bzero() function defined string.h

[grumpy]

just use bzero() function defined string.h

..... if you want a compiler-specific, non-standard, solution.

An option that is actually specified in the C standard is memset().

[kmess]

You didn't mention if you want to initialize the arrays several times during program execution, or whether you want to have the arrays initialized one time at the beginning of program execution.

If you simply want to start your program with initialized arrays, you can do so when you define the array, e.g.

int test[100] = { 0 };

This will initialize all 100 elements of array test with a 0 value.

Kevin

[kmess]

HI Grumpy. I think that bzero() is part of the C99 standard library. It just isn't available in ANSI C. Can anyone confirm?

Kevin

[stahta01]

Here's a site that says bzero is "partially obsolete"
Copying and Concatenation - The GNU C Library

2nd site
http://pubs.opengroup.org/onlinepubs...ons/bzero.html

[laserlight]

I think that bzero() is part of the C99 standard library. It just isn't available in ANSI C. Can anyone confirm?

I can confirm that bzero is not part of C99's standard library.

[CommonTater]

HI Grumpy. I think that bzero() is part of the C99 standard library. It just isn't available in ANSI C. Can anyone confirm?

Kevin

Nope not C99 and not present on either of my library/header sets.

[CommonTater]

just use bzero() function defined string.h

Which compiler are you using?

bzero() appears to be obsolete.

[cas]

HI Grumpy. I think that bzero() is part of the C99 standard library. It just isn't available in ANSI C.

C99 is ANSI. That is to say, ANSI adopted ISO/IEC 9899:1999 (AKA C99), just like they adopted ISO/IEC 9899:1990 (AKA C90, or, usually used to mean the same thing, C89).

bzero() was not in C89. It was a BSD function adopted by POSIX, and has been removed as of POSIX 2008.

[kmess]

That's probably why I'm finding it in my library - I use BSD. Cool to know.

Kevin

[grumpy]

C99 is ANSI. That is to say, ANSI adopted ISO/IEC 9899:1999 (AKA C99), just like they adopted ISO/IEC 9899:1990 (AKA C90, or, usually used to mean the same thing, C89).

It was actually the other way around.

ANSI developed and ratified the 1989 C standard, and it was later adopted (with minor changes of labeling) by ISO. That is why the 1989 C standard is sometimes referred to as C90, particularly by Europeans: it was ratified by ANSI in 1989, and later adopted by ISO in 1990.

I'm not exactly sure exactly which organisation did what with the 1999 C standard (the whole process was somewhat quieter) but would be surprised if there was a different sequence.