Solved

bzero/bcopy : undefined

Posted on 2004-09-05
2
2,993 Views
Last Modified: 2012-05-05
Hello.        
I tried to compile some code (MSVC) with the following fragment.

bzero( k_opad, sizeof k_opad);
bcopy( key, k_ipad, key_len);

Visual studio don't seems to know those two functions. In which header file are they defined??
0
Comment
Question by:zeugje
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 23

Accepted Solution

by:
Mysidia earned 50 total points
ID: 11985498
#include <strings.h>

MSVC might not have it

in that case I suggest using the C string library
#include <string.h>
instead
and use these functions:
 memset(memory, 0, size);
 memcpy(destination, src, length);

use memmove instead of memcpy  (if the memory areas are allowed to overlap)

Or if you want to think of this in terms of macros s. like...

#define bzero(memArea, len)  memset((memArea), 0, (len))
#define bcopy(memSrc, memDst, memLen) \
                    memcpy((memDst), (memSrc), (memLen))
0
 

Expert Comment

by:pimpernel
ID: 11986219
Thanks. It works indeed.
(ps.: do you happen to know if this is correct: "#define caddr_t char*" (maybe both bzero and caddr_t are linux command/structures (????))
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Article by: SunnyDark
This article's goal is to present you with an easy to use XML wrapper for C++ and also present some interesting techniques that you might use with MS C++. The reason I built this class is to ease the pain of using XML files with C++, since there is…
In days of old, returning something by value from a function in C++ was necessarily avoided because it would, invariably, involve one or even two copies of the object being created and potentially costly calls to a copy-constructor and destructor. A…
The viewer will learn how to user default arguments when defining functions. This method of defining functions will be contrasted with the non-default-argument of defining functions.
The viewer will be introduced to the member functions push_back and pop_back of the vector class. The video will teach the difference between the two as well as how to use each one along with its functionality.

695 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question