Turn off the warning for a project in Visual StudioSelect the Configuration Properties > C/C++ > Advanced property page. Edit the Disable Specific Warnings property to add 4996 . Choose OK to apply your changes.
Right click on the new property sheet and select "Properties". This will open up the properties and allow you to change the settings just like you would if you were editing them for a project. Edit the setting "Preprocessor Definitions" and add _CRT_SECURE_NO_WARNINGS . Save and you're done.
_CRT_SECURE_NO_WARNINGS means you don't want the compiler to suggest the secure versions of the library functions, e.g. scanf_s when you use scanf .
Mark all the desired projects in solution explorer.
Press Alt-F7 or right click in solution explorer and select "Properties"
Configurations:All Configurations
Click on the Preprocessor Definitions line to invoke its editor
Choose Edit...
Copy "_CRT_SECURE_NO_WARNINGS" into the Preprocessor Definitions white box on the top.
It may have been because I am still new to VS and definitely new to C, but the only thing that allowed me to build was adding
#pragma warning(disable:4996)
At the top of my file, this suppressed the C4996 error I was getting with sprintf
A bit annoying but perfect for my tiny bit of code and by far the easiest.
I read about it here: https://msdn.microsoft.com/en-us/library/2c8f766e.aspx
Not automatically, no. You can create a project template as BlueWandered suggested or create a custom property sheet that you can use for your current and all future projects.
_CRT_SECURE_NO_WARNINGS
.Now any time you create a new project, add this property sheet like so...
The benefit here is that not only do you get a single place to manage common settings but anytime you change the settings they get propagated to ALL projects that use it. This is handy if you have a lot of settings like _CRT_SECURE_NO_WARNINGS
or libraries like Boost that you want to use in your projects.
All the solutions here failed to work on my VS2013, however I put the #define _CRT_SECURE_NO_WARNINGS
in the stdafx.h just before the #pragma once
and all warnings were suppressed. Note: I only code for prototyping purposes to support my research so please make sure you understand the implications of this method when writing your code.
Hope this helps
just copy " _CRT_SECURE_NO_WARNINGS " paste it on projects->properties->c/c++->preprocessor->preprocessor definitions click ok.it will work
my two cents for VS 2017:
I can confirm it works in stdafx.h both in these styles:
a)
#pragma once
#define _CRT_SECURE_NO_WARNINGS 1
#define _WINSOCK_DEPRECATED_NO_WARNINGS 1
b)
#define _CRT_SECURE_NO_WARNINGS 1
#define _WINSOCK_DEPRECATED_NO_WARNINGS 1
#pragma once
(I have added another define for MSDN network calls..) Of course I do prefer a).
I can confirm that: #define _CRT_SECURE_NO_WARNINGS (without a value) DOES NOT WORK.
PS the real point is to put these defines BEFORE declarations of functions, i.e. before *.h
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