C++ 添加我自己的编译器警告
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/2143352/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Add my own compiler warning
提问by Warpin
When using sprintf, the compiler warns me that the function is deprecated.
使用 sprintf 时，编译器会警告我该函数已被弃用。
How can I show my own compiler warning?
如何显示我自己的编译器警告？
采纳答案by Jacob
In Visual Studio,
#pragma message ("Warning goes here")
#pragma message ("Warning goes here")
On a side note, if you want to suppress such warnings, find the compiler warning ID (for the deprecated warning, it's C4996) and insert this line:
附带说明一下，如果您想取消此类警告，请找到编译器警告 ID（对于已弃用的警告，它是C4996）并插入以下行：
#pragma warning( disable : 4996)
#pragma warning( disable : 4996)
回答by Georg Fritzsche
Although there is no standard #warningdirectice, many compilers (including GCC, VC, Intels and Apples), support #warning message.
尽管没有标准#warning指令，但许多编译器（包括 GCC、VC、Intel 和 Apple）都支持#warning message.
#warning "this is deprecated"
Often it is better to not only bring up a warning (which people can overlook), but to let compiling fail completely, using the #errordirective (which is standard):
通常最好不仅提出警告（人们可以忽略），而且让编译完全失败，使用#error指令（这是标准的）：
#if !defined(FOO) && !defined(BAR)
# error "you have neither foo nor bar set up"
#endif
回答by Martin B
To mark a function as deprecated, use __declspec(deprecated), e.g.
要将函数标记为已弃用，请使用__declspec(deprecated)，例如
__declspec(deprecated) void f();
回答by noelicus
In VC if you want the warning to show up in the warning count at the end of compilation you need to use this format:
在 VC 中，如果您希望在编译结束时在警告计数中显示警告，则需要使用以下格式：
#pragma message(": warning<put what you like here>: blah blah blah")
The important sequence is: colon, space, "warning", something or nothing, colon, "your warning text"
重要的顺序是：冒号、空格、“警告”、某事或无、冒号、“你的警告文本”
If you want to be fancy then file and line number can be added before the 1st colon so you can double click it to jump to the code (from microsoft.com):
如果你想花哨，那么可以在第一个冒号之前添加文件和行号，这样你就可以双击它跳转到代码（来自microsoft.com）：
// pragma_directives_message1.cpp // compile with: /LD #if _M_IX86 >= 500 #pragma message("_M_IX86 >= 500") #endif #pragma message("") #pragma message( "Compiling " __FILE__ ) #pragma message( "Last modified on " __TIMESTAMP__ ) #pragma message("") // with line number #define STRING2(x) #x #define STRING(x) STRING2(x) #pragma message (__FILE__ "[" STRING(__LINE__) "]: test") #pragma message("")
// pragma_directives_message1.cpp // compile with: /LD #if _M_IX86 >= 500 #pragma message("_M_IX86 >= 500") #endif #pragma message("") #pragma message( "Compiling " __FILE__ ) #pragma message( "Last modified on " __TIMESTAMP__ ) #pragma message("") // with line number #define STRING2(x) #x #define STRING(x) STRING2(x) #pragma message (__FILE__ "[" STRING(__LINE__) "]: test") #pragma message("")
回答by Blackphoenix
I think this should work
我认为这应该有效
void foo () __attribute__ ((deprecated("This function is deprecated. \nFor further information please refer to the README")));
