- chris_bacon
- Feb 27, 2008
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I'm working on a blackjack program for my c++ class, but I'm having trouble working with all the separate files. When I compile the driver program, I get:
code:realgar% g++ driver.cpp
/tmp/ccVQ0FJW.o: In function `dealCards(Deck, SimplePlayer, Hand)':
driver.cpp:(.text+0xcc3): undefined reference to `SimplePlayer::expose(Card)'
driver.cpp:(.text+0xd39): undefined reference to `SimplePlayer::expose(Card)'
driver.cpp:(.text+0xd63): undefined reference to `SimplePlayer::expose(Card)'
collect2: ld returned 1 exit status
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Mar 22, 2008 02:58
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May 4, 2024 01:49
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- chris_bacon
- Feb 27, 2008
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Alright, one more related question. Whenever I try to compile deck.cpp, I get this error:
code:rubric% g++ deck.cpp
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/crt1.o: In function `_start':
(.text+0x20): undefined reference to `main'
collect2: ld returned 1 exit status
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Mar 23, 2008 02:25
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- chris_bacon
- Feb 27, 2008
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HB posted:
That error means that there is no main function anywhere that gcc can find. It's trying to produce an executable and can't figure out where your code takes over once the process is created.
Where is main? Is there a path of includes leading to it from deck.cpp? If you want to produce an object file for linking later you have to use a different invocation of gcc.
ah, I forgot to add -c when compiling. thanks for the help.
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Mar 23, 2008 02:44
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- chris_bacon
- Feb 27, 2008
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Is it possible to use a struct or class in a templated function? I've already made a working, templated, double-linked list and now I'm trying to use it in a call center simulation.
I made the struct:
code:struct caller_t {
public:
string status;
string name;
int timestamp;
int duration;
};
When I compile, I get this:
code:cse1695p58% g++ -Wall -Werror -o call call.cpp
call.cpp:38:32: error: character constant too long for its type
call.cpp:42:32: error: multi-character character constant
call.cpp:46:32: error: character constant too long for its type
call.cpp:50:32: error: multi-character character constant
call.cpp: In function ‘int main()’:
call.cpp:38: error: no match for ‘operator==’ in ‘(((caller_t*)(((long unsigned int)i) * 24ul)) + callers)->caller_t::status == 1768846701’
call.cpp:39: error: no matching function for call to ‘Dlist<caller_t>::insertFront(caller_t&)’
dlist.cpp:14: note: candidates are: void Dlist<T>::insertFront(T*) [with T = caller_t]
call.cpp:42: error: no match for ‘operator==’ in ‘(((caller_t*)(((long unsigned int)i) * 24ul)) + callers)->caller_t::status == 1735355492’
call.cpp:43: error: no matching function for call to ‘Dlist<caller_t>::insertFront(caller_t&)’
dlist.cpp:14: note: candidates are: void Dlist<T>::insertFront(T*) [with T = caller_t]
call.cpp:46: error: no match for ‘operator==’ in ‘(((caller_t*)(((long unsigned int)i) * 24ul)) + callers)->caller_t::status == 1819698546’
call.cpp:47: error: no matching function for call to ‘Dlist<caller_t>::insertFront(caller_t&)’
dlist.cpp:14: note: candidates are: void Dlist<T>::insertFront(T*) [with T = caller_t]
call.cpp:50: error: no match for ‘operator==’ in ‘(((caller_t*)(((long unsigned int)i) * 24ul)) + callers)->caller_t::status == 1852796517’
call.cpp:51: error: no matching function for call to ‘Dlist<caller_t>::insertFront(caller_t&)’
dlist.cpp:14: note: candidates are: void Dlist<T>::insertFront(T*) [with T = caller_t]
call.cpp:60: error: request for member ‘name’ in ‘curcaller’, which is of non-class type ‘caller_t*’
call.cpp:61: error: request for member ‘duration’ in ‘curcaller’, which is of non-class type ‘caller_t*’
code:template <class T>
void Dlist<T>::insertFront(T *o)
{
node *np = new node;
np->next = first;
np->o = o;
if (isEmpty()) {
last = np;
}
else {
first->prev = np;
}
first = np;
}
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Apr 13, 2008 01:52
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Mar 22, 2008 02:58
