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Linux上的Poco :: Logger的編譯錯誤 - 函數聲明被視爲宏

2014-07-14 37 views
0

我一直在嘗試構建使用Poco :: Application類作爲其基礎的可執行文件，但編譯器提供了以下指向Poco代碼的錯誤。Linux上的Poco :: Logger的編譯錯誤 - 函數聲明被視爲宏

In file included from /home/mie/Poco/poco-1.4.6p4/Util/include/Poco/Util/Application.h:48:0, 
       from /home/mie/myproject/src/main.cpp:15: 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:152:59: error: macro "log" passed 3 arguments, but takes just 1 
In file included from /home/mie/Poco/poco-1.4.6p4/Util/include/Poco/Util/Application.h:48:0, 
       from /home/mie/myproject/src/main.cpp:15: 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:427:58: error: macro "log" passed 2 arguments, but takes just 1 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:428:86: error: macro "log" passed 4 arguments, but takes just 1 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:601:72: error: macro "log" passed 2 arguments, but takes just 1 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:610:100: error: macro "log" passed 4 arguments, but takes just 1 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:621:30: error: macro "log" passed 2 arguments, but takes just 1 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:627:42: error: macro "log" passed 4 arguments, but takes just 1 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:633:33: error: macro "log" passed 2 arguments, but takes just 1 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:639:45: error: macro "log" passed 4 arguments, but takes just 1 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:645:30: error: macro "log" passed 2 arguments, but takes just 1 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:651:42: error: macro "log" passed 4 arguments, but takes just 1 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:657:32: error: macro "log" passed 2 arguments, but takes just 1 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:663:44: error: macro "log" passed 4 arguments, but takes just 1 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:669:31: error: macro "log" passed 2 arguments, but takes just 1 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:675:43: error: macro "log" passed 4 arguments, but takes just 1 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:681:36: error: macro "log" passed 2 arguments, but takes just 1 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:687:48: error: macro "log" passed 4 arguments, but takes just 1 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:693:30: error: macro "log" passed 2 arguments, but takes just 1 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:699:42: error: macro "log" passed 4 arguments, but takes just 1 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:705:30: error: macro "log" passed 2 arguments, but takes just 1 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:711:42: error: macro "log" passed 4 arguments, but takes just 1 
In file included from /home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:44:0, 
       from /home/mie/Poco/poco-1.4.6p4/Util/include/Poco/Util/Application.h:48, 
       from /home/mie/myproject/src/main.cpp:15: 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Channel.h:75:15: error: expected unqualified-id before ‘__extension__’ 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Channel.h:75:15: error: expected ‘)’ before ‘__extension__’ 
In file included from /home/mie/Poco/poco-1.4.6p4/Util/include/Poco/Util/Application.h:48:0, 
       from /home/mie/myproject/src/main.cpp:15: 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:145:7: error: expected unqualified-id before ‘__extension__’ 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:145:7: error: expected ‘)’ before ‘__extension__’ 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:149:7: error: expected unqualified-id before ‘__extension__’ 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:149:7: error: expected ‘)’ before ‘__extension__’ 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:152:7: error: variable or field ‘log’ declared void 
In file included from /home/mie/Poco/poco-1.4.6p4/Util/include/Poco/Util/Application.h:48:0, 
       from /home/mie/myproject/src/main.cpp:15: 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:427:7: error: variable or field ‘log’ declared void 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:428:7: error: variable or field ‘log’ declared void 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:601:21: error: variable or field ‘log’ declared void 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:601:21: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x [enabled by default] 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:603:2: error: expected primary-expression before ‘if’ 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:603:2: error: expected ‘}’ before ‘if’ 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:610:13: error: ‘Logger’ has not been declared 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:610:21: error: variable or field ‘log’ declared void 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:610:21: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x [enabled by default] 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:612:2: error: expected primary-expression before ‘if’ 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:612:2: error: expected ‘}’ before ‘if’ 
/home/mie/Poco/poco-1.4.6p4/Foundation/include/Poco/Logger.h:616:1: error: expected declaration before ‘}’ token 
make[2]: *** [CMakeFiles/app.dir/main.cpp.o] Error 1 
make[1]: *** [CMakeFiles/app.dir/all] Error 2

在這裏，我包括從我的主目錄最新版本波科（1.4.6p4），但我已經試過1.4.2p1-2.el6從CentOS的具有相同的結果6.5庫。在OS X上我沒有這個問題（我相信那裏的庫版本是1.4.2）。

如果我看第152行Poco/Logger.h中的內容，第一個錯誤指向的地方，它似乎是一個函數聲明，而不是錯誤狀態。

// 
// Logger.h 
// 
// $Id: //poco/1.4/Foundation/include/Poco/Logger.h#5 $ 
// 
// Library: Foundation 
// Package: Logging 
// Module: Logger 
// 
// Definition of the Logger class. 
... (comment continues) 


#ifndef Foundation_Logger_INCLUDED 
#define Foundation_Logger_INCLUDED 


#include "Poco/Foundation.h" 
#include "Poco/Channel.h" 
#include "Poco/Message.h" 
#include "Poco/Format.h" 
#include <map> 
#include <vector> 
#include <cstddef> 


namespace Poco { 


class Exception; 


class Foundation_API Logger: public Channel 
     /// Logger is a special Channel that acts as the main 
     /// entry point into the logging framework. 
    ... (comment continues) 
{ 
public: 
    ... (other declarations) 

    void log(const Exception& exc, const char* file, int line);  <= line 152 
       /// Logs the given exception with priority PRIO_ERROR. 
       /// 
       /// File must be a static string, such as the value of 
       /// the __FILE__ macro. The string is not copied 
       /// internally for performance reasons. 

    ... (and so on)

那麼，爲什麼我的編譯器將此函數聲明視爲對宏的引用呢？

作爲一個方面說明，在剛剛發佈的構建過程中，出現了一個奇怪的錯誤。也許這些都是相關的。我試着在一個內聯函數使用FMOD功能從tgmath.h和編譯器給了這個錯誤六次一行代碼：

/.../header.h:418: error: 」void*」 is not a pointer-to-object type 
/.../header.h:418: error: 」void*」 is not a pointer-to-object type 
/.../header.h:418: error: 」void*」 is not a pointer-to-object type 
/.../header.h:418: error: 」void*」 is not a pointer-to-object type 
/.../header.h:418: error: 」void*」 is not a pointer-to-object type 
/.../header.h:418: error: 」void*」 is not a pointer-to-object type

這是觸發該錯誤的頭文件的代碼：

inline void ProgressCounter::createTimeString(
    std::string& timeString, 
    const long long& elapsedTotalS) 
{ 
    short elapsedH = (short)elapsedTotalS/3600; 
    //short elapsedS = 0; 
    short elapsedS = fmod(elapsedTotalS, 60);   <= error here 
    short elapsedM = 0; 
    //short elapsedM = fmod(elapsedTotalS - elapsedS, 3600)/60; 
    char timeCString[10]; 
    snprintf(timeCString, 10, "%02u:%02u:%02u", elapsedH, elapsedM, elapsedS); 

    timeString = timeCString; 
}

包含頭文件tgmath.h，並且在OS X上編譯的代碼沒有問題。我不明白錯誤中的void *指向哪裏。

我一直在CentOS 6.5上使用GCC 4.4.7，在Ubuntu 12.04上使用GCC 4.4.6.3-1ubuntu5。

來源

2014-07-14 Pnog is not Pong

回答

1

<math.h>和<tgmath.h>定義了很多宏，其中包括一個與同名任何內容衝突的宏log。

在C++代碼中，您應該更願意包含<cmath>或<ctgmath>，其中類型泛型宏被替換爲C++函數重載。

PS：至少對於gcc，<ctgmath>似乎需要C++ 11支持，因此您必須在編譯時添加「-std = C++ 0x」或「-std = C++ 11」選項。

來源

2014-07-14 20:23:11 alexisdm

0

嘗試首先包括您的POCO庫，看看是否有幫助。我幾天前在VS 2010上遇到了一個問題，那就是當我最後包含POCO庫時，許多Windows API突然變得不確定。將它們提前移動到其他＃包括解決了問題。

修好後，我沒有深入分析導致問題的原因。

來源

2014-07-14 12:29:13 Logicrat

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