我一直在努力讓服務器/客戶端運行一個簡單的單線程信使服務。它能夠在Visual Studio上編譯,但是當我嘗試在Linux上通過makefile進行編譯時,使用以下命令:make client
,我得到一個非常大的錯誤列表。我會提供起始部,然後錯誤列表:使用G ++,未定義的引用std :: Makefile
這裏它說,它至少嘗試使用G ++:
g++ -g -c -o client.o client.cc cc client.o -o client client.o: In function
main': /home/peter/Desktop/CS360/Messaging_Service/messenger/client.cc:10: undefined reference to
std::allocator::allocator()'EDIT: I noticed something unusual here. When I call
make client
again without callingmake clean
I get the following:[email protected]:~/Desktop/CS360/Messaging_Service/messenger$ make client cc client.o -o client client.o: In function
main': /home/peter/Desktop/CS360/Messaging_Service/messenger/client.cc:10: undefined reference to
std::allocator::allocator()' Not sure if this is significant or not, but it doesn't mention g++ again.
片段說的錯誤:
/home/peter/Desktop/CS360/Messaging_Service/messenger/client.cc:7: undefined reference to `std::allocator<char>::allocator()'
/home/peter/Desktop/CS360/Messaging_Service/messenger/client.cc:7: undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&)'
/home/peter/Desktop/CS360/Messaging_Service/messenger/client.cc:7: undefined reference to `std::allocator<char>::~allocator()'
/home/peter/Desktop/CS360/Messaging_Service/messenger/client.cc:15: undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::operator=(char const*)'
/home/peter/Desktop/CS360/Messaging_Service/messenger/client.cc:18: undefined reference to `std::cout'
/home/peter/Desktop/CS360/Messaging_Service/messenger/client.cc:18: undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)'
/home/peter/Desktop/CS360/Messaging_Service/messenger/client.cc:18: undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::endl<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&)'
/home/peter/Desktop/CS360/Messaging_Service/messenger/client.cc:18: undefined reference to `std::ostream::operator<<(std::ostream& (*)(std::ostream&))'
/home/peter/Desktop/CS360/Messaging_Service/messenger/client.cc:23: undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
/home/peter/Desktop/CS360/Messaging_Service/messenger/client.cc:23: undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()'
/home/peter/Desktop/CS360/Messaging_Service/messenger/client.cc:7: undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()'
/home/peter/Desktop/CS360/Messaging_Service/messenger/client.cc:25: undefined reference to `std::allocator<char>::~allocator()'
/home/peter/Desktop/CS360/Messaging_Service/messenger/client.cc:25: undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()'
/home/peter/Desktop/CS360/Messaging_Service/messenger/client.cc:7: undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()'
client.o: In function `Client::Client(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, int)':
/home/peter/Desktop/CS360/Messaging_Service/messenger/client.cc:27: undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string()'
/home/peter/Desktop/CS360/Messaging_Service/messenger/client.cc:27: undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string()'
/home/peter/Desktop/CS360/Messaging_Service/messenger/client.cc:29: undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::operator=(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
/home/peter/Desktop/CS360/Messaging_Service/messenger/client.cc:32: undefined reference to `operator new[](unsigned long)'
這導致我相信我的makefile存在錯誤。我使用g ++,我相信它也可以很好地編譯,所以我不太確定從哪裏開始。我的Makefile:
CXX= g++ $(CCFLAGS)
MSG-SERVER= server.o
MSG-CLIENT= client.o
OBJS = $(MSG-SERVER) $(MSG-CLIENT)
LIBS =
CCFLAGS = -g
all: msg-server msg-client
msg-server:$(MSG-SERVER)
$(CXX) -o server $(MSG-SERVER) $(LIBS)
msg-client:$(MSG-CLIENT)
$(CXX) -o client $(MSG-CLIENT) $(LIBS)
clean:
rm -f $(OBJS) $(OBJS:.o=.d)
realclean:
rm -f $(OBJS) $(OBJS:.o=.d) server client
# These lines ensure that dependencies are handled automatically.
%.d: %.cc
$(SHELL) -ec '$(CC) -M $(CPPFLAGS) $< \
| sed '\''s/\($*\)\.o[ :]*/\1.o [email protected] : /g'\'' > [email protected]; \
[ -s [email protected] ] || rm -f [email protected]'
include $(OBJS:.o=.d)
如果需要,我會聯繫我的代碼,以及:https://bitbucket.org/picklepetters/messenger/src/44e4fa12541948215f874b56e4ba0dedea1766f5/client.cc?at=master&fileviewer=file-view-default
當我做跟蹤與make -d
它給我的數據量巨大。我會後的被賦予什麼樣的一些片段,因爲我真的不知道我在看:
Trying implicit prerequisite '/usr/include/c++/5/SCCS/s.stdexcept.F'.
Trying pattern rule with stem 'stdexcept'.
Trying implicit prerequisite '/usr/include/c++/5/stdexcept.r'.
Looking for a rule with intermediate file '/usr/include/c++/5/stdexcept.r'.
Avoiding implicit rule recursion.
Avoiding implicit rule recursion.
Avoiding implicit rule recursion.
Trying pattern rule with stem 'stdexcept'.
Rejecting impossible implicit prerequisite '/usr/include/c++/5/stdexcept.l'.
Trying pattern rule with stem 'stdexcept.r'.
Trying implicit prerequisite '/usr/include/c++/5/stdexcept.r,v'.
Trying pattern rule with stem 'stdexcept.r'.
Trying implicit prerequisite '/usr/include/c++/5/RCS/stdexcept.r,v'.
Trying pattern rule with stem 'stdexcept.r'.
Trying implicit prerequisite '/usr/include/c++/5/RCS/stdexcept.r'.
Trying pattern rule with stem 'stdexcept.r'.
Trying implicit prerequisite '/usr/include/c++/5/s.stdexcept.r'.
Trying pattern rule with stem 'stdexcept.r'.
Trying implicit prerequisite '/usr/include/c++/5/SCCS/s.stdexcept.r'.
Trying pattern rule with stem 'stdexcept'.
Rejecting impossible implicit prerequisite '/usr/include/c++/5/stdexcept.F'.
Trying pattern rule with stem 'stdexcept'.
Trying implicit prerequisite '/usr/include/c++/5/stdexcept.m'.
Looking for a rule with intermediate file '/usr/include/c++/5/stdexcept.m'.
Avoiding implicit rule recursion.
Avoiding implicit rule recursion.
Trying pattern rule with stem 'stdexcept'.
Trying implicit prerequisite '/usr/include/c++/5/stdexcept.ym'.
Trying pattern rule with stem 'stdexcept.m'.
Trying implicit prerequisite '/usr/include/c++/5/stdexcept.m,v'.
Trying pattern rule with stem 'stdexcept.m'.
Trying implicit prerequisite '/usr/include/c++/5/RCS/stdexcept.m,v'.
Trying pattern rule with stem 'stdexcept.m'.
Trying implicit prerequisite '/usr/include/c++/5/RCS/stdexcept.m'.
Trying pattern rule with stem 'stdexcept.m'.
這就像直到也許150〜接近尾聲線時,它說,它已經完成了先決條件
Finished prerequisites of target file 'server.d'.
Prerequisite 'server.cc' is older than target 'server.d'.
Prerequisite 'server.cc' is older than target 'server.d'.
Prerequisite '/usr/include/stdc-predef.h' is older than target 'server.d'.
Prerequisite 'server.h' is older than target 'server.d'.
Prerequisite '/usr/include/errno.h' is older than target 'server.d'.
Prerequisite '/usr/include/features.h' is older than target 'server.d'.
Prerequisite '/usr/include/x86_64-linux-gnu/sys/cdefs.h' is older than target 'server.d'.
Prerequisite '/usr/include/x86_64-linux-gnu/bits/wordsize.h' is older than target 'server.d'.
Prerequisite '/usr/include/x86_64-linux-gnu/gnu/stubs.h' is older than target 'server.d'.
Prerequisite '/usr/include/x86_64-linux-gnu/gnu/stubs-64.h' is older than target 'server.d'.
Prerequisite '/usr/include/x86_64-linux-gnu/bits/errno.h' is older than target 'server.d'.
最後100行它指出:目標文件的
Must remake target 'server.o'.
g++ -g -c -o server.o server.cc
Putting child 0x13601a0 (server.o) PID 7768 on the chain.
Live child 0x13601a0 (server.o) PID 7768
server.cc: In function ‘int main(int, char**)’:
server.cc:19:17: error: ‘cout’ was not declared in this scope
cout << "server [-p port]" << endl;
^
server.cc:19:47: error: ‘endl’ was not declared in this scope
cout << "server [-p port]" << endl;
^
server.cc: In constructor ‘Server::Server(int)’:
server.cc:34:30: error: ‘>>’ should be ‘> >’ within a nested template argument list
map<string, vector<string>> mappedMessages;
^
server.cc: At global scope:
server.cc:121:36: error: ‘String’ has not been declared
Server::handle_message(int client, String message) {
^
server.cc:121:1: error: prototype for ‘void Server::handle_message(int, int)’ does not match any in class ‘Server’
Server::handle_message(int client, String message) {
^
In file included from server.cc:1:0:
server.h:33:12: error: candidate is: std::__cxx11::string Server::handle_message(int, std::__cxx11::string)
string handle_message(int, string);
^
server.cc:127:35: error: ‘String’ has not been declared
Server::parse_message(int client, String message) {
^
server.cc:127:1: error: prototype for ‘std::__cxx11::string Server::parse_message(int, int)’ does not match any in class ‘Server’
Server::parse_message(int client, String message) {
^
In file included from server.cc:1:0:
server.h:34:12: error: candidate is: std::__cxx11::string Server::parse_message(int, std::__cxx11::string)
string parse_message(int, string);
^
server.cc:190:63: error: ISO C++ forbids declaration of ‘store_message’ with no type [-fpermissive]
Server::store_message(string name, string subject, string data) {
^
server.cc:190:1: error: prototype for ‘int Server::store_message(std::__cxx11::string, std::__cxx11::string, std::__cxx11::string)’ does not match any in class ‘Server’
Server::store_message(string name, string subject, string data) {
^
In file included from server.cc:1:0:
server.h:36:10: error: candidate is: void Server::store_message(std::__cxx11::string, std::__cxx11::string, std::__cxx11::string)
void store_message(string, string, string);
^
server.cc: In member function ‘std::__cxx11::string Server::get_subjects(std::__cxx11::string)’:
server.cc:210:5: error: ‘mappedMessages’ was not declared in this scope
if(mappedMessages.find(name) != mappedMessages.empty()) {
^
server.cc:214:15: error: missing template arguments before ‘it’
for(iterator it = mappedMessages.at(name).begin(); it != mappedMessages.at(name).end(); ++it) {
^
server.cc:214:53: error: ‘it’ was not declared in this scope
for(iterator it = mappedMessages.at(name).begin(); it != mappedMessages.at(name).end(); ++it) {
^
server.cc:214:59: error: ‘mappedMessages’ was not declared in this scope
for(iterator it = mappedMessages.at(name).begin(); it != mappedMessages.at(name).end(); ++it) {
^
server.cc:219:29: error: no match for ‘operator+’ (operand types are ‘std::__cxx11::basic_string<char>’ and ‘int’)
response = response + " " + counter + " " + mappedMessages.at(name).it.front() + "\n";
你能告訴我們你的makefile執行的全部痕跡?我懷疑有一些C編譯涉及到了...... –
好的,我只是把它放到原來的文章中,如果那是你的意思,那麼我輸入文件路徑來執行makefile – Petorix
我的意思是:trace 'make'執行,請在問題中。 –