Compiler Error: Function call with parameters that may be unsafe

如下的代码:

#include <stdio.h>

#include <string>

#include <algorithm>

#include <cassert>

#include <cctype>

#include <boost/algorithm/string.hpp>

int main(int argc, char *argv[])

{

char song[17] = "Book of Taliesyn";

boost::to_upper(song);

assert(std::string(song) == "BOOK OF TALIESYN");

return 0;

}

编译的时候报错:

Error      1              error C4996: 'std::_Transform1': Function call with parameters that may be unsafe - this call relies on the caller to check that the passed values are correct. To disable this warning, use -D_SCL_SECURE_NO_WARNINGS. See documentation on how to use Visual C++ 'Checked Iterators' c:\program files (x86)\microsoft visual studio 12.0\vc\include\algorithm           1026       1              Test13

[分析]

1. 搜索到如下的文章:

https://stackoverflow.com/questions/903064/compiler-error-function-call-with-parameters-that-may-be-unsafe

The warning is telling you that you risk a buffer overflow if n is too large -- which you know can't happen because of the way you just computed with a min, but the poor commpiler doesn't. I suggest you take the compiler's own advice and use -D_SCL_SECURE_NO_WARNINGS for this one source file...

1. 关于如何修复: https://stackoverflow.com/questions/25046829/what-does-use-d-scl-secure-no-warnings-mean

-D is a command line compiler flag which causes the rest of the text to be treated as if there was a #define in your code.

In solution explorer, right click the project, select "properties". The project property page will open. Expand the ">C/C++" entry in the tree on the left and select "Preprocessor" under that. The top entry in the right pane should be "Preprocessor Definitions". In that edit box, add _SCL_SECURE_NO_WARNINGS, separating it from the other entries with a ;

[解决]

加上这个宏定义后,就编译通过了.