strcpy error in Visual studio 2012

Question

so I have this code    include  stdafx h   include  lt cstdlib gt   include  lt iostream gt   include  lt string gt  using namespace std         char  b   new char  10   strcpy b   1234567890      error  microsoft visual studio 11 0 vc include string h 110    see declaration of  strcpy   How do I fix it

User · Answer

A quick fix is to add the  CRT SECURE NO WARNINGS definition to your project s settings  Right-click your C   and chose the  Properties  item to get to the properties window    Now follow and expand to   Configuration Properties -  C C   -  Preprocessor -  Preprocessor definitions    In the  Preprocessor definitions  add       CRT SECURE NO WARNINGS   but it would be a good idea to add      CRT SECURE NO WARNINGS   PreprocessorDefinitions    as to inherit predefined definitions  IMHO  amp  for the most part this is a good approach

User · Answer

I had to use strcpy s and it worked    include  stdafx h   include lt iostream gt   include lt string gt   using namespace std   struct student       char name 30       int age      int main          struct student s1      char myname 30     John       strcpy s  s1 name  strlen myname    1  myname        s1 age   21       cout  lt  lt    Name     lt  lt  s1 name  lt  lt    age     lt  lt  s1 age  lt  lt  endl      return 0

User · Answer

For my problem  I removed the   include  lt glui h gt  statement and it ran without a problem

User · Answer

If you are getting an error saying something about deprecated functions  try doing  define  CRT SECURE NO WARNINGS or  define  CRT SECURE NO DEPRECATE  These should fix it  You can also use Microsoft s  secure  functions  if you want

User · Answer

The message you are getting is advice from MS that they recommend that you do not use the standard strcpy function  Their motivation in this is that it is easy to misuse in bad ways  and the compiler generally can t detect and warn you about such misuse   In your post  you are doing exactly that  You can get rid of the message by telling the compiler to not give you that advice  The serious error in your code would remain  however   You are creating a buffer with room for 10 chars  You are then stuffing 11 chars into it   Remember the terminating   0    You have taken a box with exactly enough room for 10 eggs and tried to jam 11 eggs into it  What does that get you  Not doing this is your responsibility and the compiler will generally not detect such things   You have tagged this C   and included string  I do not know your motivation for using strcpy  but if you use std  string instead of C style strings  you will get boxes that expand to accommodate what you stuff in them

User · Answer

There s an explanation and solution for this on MSDN      The function strcpy is considered unsafe due to the fact that there is   no bounds checking and can lead to buffer overflow       Consequently  as it suggests in the error description  you can use   strcpy s instead of strcpy       strcpy s     char  strDestination     size t numberOfElements    const char  strSource       and      To disable deprecation  use    CRT SECURE NO WARNINGS  See online help for details    http   social msdn microsoft com Forums da-DK vcgeneral thread c7489eef-b391-4faa-bf77-b824e9e8f7d2

User · Answer

Add this line top of the header   pragma warning disable   4996

[c++] strcpy() error in Visual studio 2012

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