to disable deprecation, use _crt_secure_no_warnings

要禁用过时警告，可以使用"_crt_secure_no_warnings"。

在编程中，当我们使用一些旧版本的函数或技术时，编译器可能会给出警告，称其为过时（deprecated）。这是为了提醒开发者，该函数或技术可能存在一些问题或不再推荐使用。

然而，有时候我们确实需要使用这些过时的函数或技术，因为它们可能在我们的项目中仍然有效或必要。当我们确定自己知道如何正确地使用它们，并且不希望在编译过程中看到相关的警告时，我们可以使用"_crt_secure_no_warnings"指令来禁用这些过时警告。

这个指令可以在代码的开头或者导入相关的库的地方使用。它的作用是告诉编译器忽略与过时函数或技术相关的警告。

需要注意的是，禁用过时警告的主要目的是为了在开发过程中方便使用，但需要谨慎使用。我们应该了解为何函数或技术被标记为过时，并确保自己的代码不会受到相关问题的影响。

总的来说，使用"_crt_secure_no_warnings"能够有效地禁用与过时函数或技术相关的警告，使得编译过程不再受到这些警告的干扰。但在使用时需要谨慎，并确保自己对于所使用的过时函数或技术有足够的了解和掌握。

相关问题

List ire Solution * 1 Error A 99 Warnings © 0 of 241 Messages Build + IntelliSense 7 Code Description A C4996 'wesncpy": This function or variable may be unsafe. Consider using wesncpy_sinstead. To disable deprecation, use _CRT_SECURE_NO_WARN A C4005 'SIZE T MAX: macro redefinition A C4996 *wescpy: This function or variable may be unsafe. Consider using wescpy_s instead. To disable deprecation, use_CRT_SECURE NO_WARNING A C4005 _AfxGetDIgCtrIlD': macro redefinition A C4996 'wtomb': This function or variable may be unsafe. Consider using wetomb_s instead. To disable deprecation, use _CRT, SECURE NO_WARNING LNK1104 cannot open file .........\Build\Win32\Unicode\Release\BIN\CMNSHR32.dIl' r List Find Symbol Results Output

It seems that you are encountering some errors and warnings during the build process of your project. Here are some possible solutions to the errors and warnings you mentioned:

1. C4996, C4005 warning: These warnings indicate that some functions or variables you are using may be unsafe. You can consider using the safer versions of these functions or variables, such as "wesncpy_s" instead of "wesncpy". To disable these warnings, you can use the "_CRT_SECURE_NO_WARNINGS" preprocessor definition.

2. LNK1104 error: This error usually means that the linker cannot find a particular file that it needs to link your project. In this case, it cannot find the "CMNSHR32.dIl" file. You may need to check your project settings and make sure that the file is included in the correct path.

3. Other warnings: The other warnings you mentioned, such as the macro redefinition warnings, may be caused by conflicting header files or preprocessor definitions. You may need to check your project settings and make sure that there are no conflicting definitions or includes.

Overall, it's important to carefully review the error and warning messages and try to understand the root cause of the issue. You may also need to consult your project documentation or seek help from other developers to resolve the issue.

'fopen': This function or variable may be unsafe. Consider using fopen_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS.

这个警告信息是因为`fopen`函数被认为是不安全的，建议使用`fopen_s`函数代替。`fopen_s`是一个安全的文件打开函数，用法和`fopen`类似，但是需要传递一个指向文件指针的指针作为第一个参数（`fopen`只需要返回一个文件指针）。

如果你不想使用`fopen_s`，可以在头文件引入前定义`_CRT_SECURE_NO_WARNINGS`宏来关闭这个警告，示例代码如下：

#define _CRT_SECURE_NO_WARNINGS // 关闭警告
#include <stdio.h>

int main() {
    FILE* fp = fopen("example.txt", "r");
    if (fp == NULL) {
        printf("Failed to open file!\n");
        return -1;
    }
    // ...
    fclose(fp);
    return 0;
}

但是需要注意的是，关闭警告可能会带来一些潜在的安全风险，因此还是建议使用`fopen_s`函数来打开文件。