我有一个使用Crypto进行几个散列函数的项目.最近,我决定清理一些东西,并在MSVC上使用警告级别4.
这是我的资料来源：
#pragma warning(push) #pragma warning(disable: 4100) //Unreferenced formal parameter #pragma warning(disable: 4244) //Conversion,possible loss of data #pragma warning(disable: 4512) //Assignment operator could not be generated #pragma warning(disable: 4127) //Conditional expression is constant #pragma warning(disable: 4505) //Unreferenced local function has been removed #define CRYPTOPP_ENABLE_NAMESPACE_WEAK 1 #include <cryptopp/md5.h> #include <cryptopp/sha.h> #pragma warning(pop)
尽管禁用：4505,我仍然收到此警告：
c:\cppdev\cryptopp561\cryptopp\misc.h(548): warning C4505: 'CryptoPP::StringNarrow' : unreferenced local function has been removed
我的项目没有建立.
我该如何解决这个问题？基本上,我只想禁用第三方代码的警告;我不想编辑cryptopp本身来修复错误,如果我可以避免这样做.
解决方法
完成解析编译的源文件后,编译器只能确定未引用的函数.将相应的#pragma disable移出push / pop范围,使其在文件末尾仍然有效：
#pragma warning(push) #pragma warning(disable: 4100) //Unreferenced formal parameter #pragma warning(disable: 4244) //Conversion,possible loss of data #pragma warning(disable: 4512) //Assignment operator could not be generated #pragma warning(disable: 4127) //Conditional expression is constant #define CRYPTOPP_ENABLE_NAMESPACE_WEAK 1 #include <cryptopp/md5.h> #include <cryptopp/sha.h> #pragma warning(pop) #pragma warning(disable: 4505) //Unreferenced local function has been removed
