simple Question
Author
ok lets say I have a struct like this:
struct node
{
char in;
node *next;
};
how do I make a funtion where its return type is s node
node functionName(char i, node n){ node newNode = new node(i, n); return newNode;}Does this work? Somehow I feel like I'm mixing up Java and C/C++.
I dont know if I have understand the question correctly:)
Don't know what you mean by 'return type is s node'?
Don't know what you mean by 'return type is s node'?
struct stNODE { char in; stNODE * pNext; stNODE( char data = 0, stNODE * pNode = NULL ) { in = data; pNext = pNode; } virtual ~stNODE() { if(pNext) { delete pNext; pNext = NULL; } }};stNODE * pNodeA = new stNODE();stNODE * pNodeB = new stNODE('A',pNodeA);delete pNodeB;pNodeB = NULL;
C:
C++:
Objects that are returned from a routine are copied, unless you return a pointer to a node residing in allocated memory.
struct node some_func() { struct node n = blah; return n;}C++:
node some_func() { node n = blah; return n;}Objects that are returned from a routine are copied, unless you return a pointer to a node residing in allocated memory.
Author
ya thats what I mean, im doing what u just said in C++.
but im gettin thig error:
error C2143: syntax error : missing ';' before 'llist::functionname'
ok llist is a class, and all this is happening in the class. functionname is a method.
but im gettin thig error:
error C2143: syntax error : missing ';' before 'llist::functionname'
ok llist is a class, and all this is happening in the class. functionname is a method.
Quote:Original post by Ksingh30
ya thats what I mean, im doing what u just said in C++.
but im gettin thig error:
error C2143: syntax error : missing ';' before 'llist::functionname'
ok llist is a class, and all this is happening in the class. functionname is a method.
post your code
-me
Author
ok this is the header file
heres the cpp file
the errors:
c:\Documents and Settings\Kevin\Desktop\linked\llist.cpp(11) : error C2143: syntax error : missing ';' before 'llist::somfunc'
c:\Documents and Settings\Kevin\Desktop\linked\llist.cpp(11) : error C2501: 'node' : missing storage-class or type specifiers
c:\Documents and Settings\Kevin\Desktop\linked\llist.cpp(12) : error C2556: 'int llist::somfunc(void)' : overloaded function differs only by return type from 'llist::node llist::somfunc(void)'
c:\Documents and Settings\Kevin\Desktop\linked\llist.h(18) : see declaration of 'llist::somfunc'
c:\Documents and Settings\Kevin\Desktop\linked\llist.cpp(12) : error C2371: 'llist::somfunc' : redefinition; different basic types
c:\Documents and Settings\Kevin\Desktop\linked\llist.h(18) : see declaration of 'llist::somfunc'
#ifndef __llistH__#define __llistH__class llist{ public: struct node { char alpha; node *next; }; node *list; llist(); ~llist(); node somfunc();};#endif heres the cpp file
#include "llist.h"llist::llist(){ list=0;}llist::~llist(){}node llist::somfunc(){ node *n=new node; return n;}the errors:
c:\Documents and Settings\Kevin\Desktop\linked\llist.cpp(11) : error C2143: syntax error : missing ';' before 'llist::somfunc'
c:\Documents and Settings\Kevin\Desktop\linked\llist.cpp(11) : error C2501: 'node' : missing storage-class or type specifiers
c:\Documents and Settings\Kevin\Desktop\linked\llist.cpp(12) : error C2556: 'int llist::somfunc(void)' : overloaded function differs only by return type from 'llist::node llist::somfunc(void)'
c:\Documents and Settings\Kevin\Desktop\linked\llist.h(18) : see declaration of 'llist::somfunc'
c:\Documents and Settings\Kevin\Desktop\linked\llist.cpp(12) : error C2371: 'llist::somfunc' : redefinition; different basic types
c:\Documents and Settings\Kevin\Desktop\linked\llist.h(18) : see declaration of 'llist::somfunc'
node * llist::somfunc()
{
node *n=new node;
return n;
}
I think you forgot the * in the return type. Both files need correction I believe.
{
node *n=new node;
return n;
}
I think you forgot the * in the return type. Both files need correction I believe.
Author
ok I added the pointer now I get these error:
c:\Documents and Settings\Kevin\Desktop\linked\llist.cpp(11) : error C2143: syntax error : missing ';' before '*'
c:\Documents and Settings\Kevin\Desktop\linked\llist.cpp(11) : error C2501: 'node' : missing storage-class or type specifiers
c:\Documents and Settings\Kevin\Desktop\linked\llist.cpp(12) : error C2501: 'llist::somfunc' : missing storage-class or type specifiers
c:\Documents and Settings\Kevin\Desktop\linked\llist.cpp(12) : error C2556: 'int *llist::somfunc(void)' : overloaded function differs only by return type from 'llist::node *llist::somfunc(void)'
c:\Documents and Settings\Kevin\Desktop\linked\llist.h(18) : see declaration of 'llist::somfunc'
c:\Documents and Settings\Kevin\Desktop\linked\llist.cpp(12) : error C2371: 'llist::somfunc' : redefinition; different basic types
c:\Documents and Settings\Kevin\Desktop\linked\llist.h(18) : see declaration of 'llist::somfunc'
c:\Documents and Settings\Kevin\Desktop\linked\llist.cpp(11) : error C2143: syntax error : missing ';' before '*'
c:\Documents and Settings\Kevin\Desktop\linked\llist.cpp(11) : error C2501: 'node' : missing storage-class or type specifiers
c:\Documents and Settings\Kevin\Desktop\linked\llist.cpp(12) : error C2501: 'llist::somfunc' : missing storage-class or type specifiers
c:\Documents and Settings\Kevin\Desktop\linked\llist.cpp(12) : error C2556: 'int *llist::somfunc(void)' : overloaded function differs only by return type from 'llist::node *llist::somfunc(void)'
c:\Documents and Settings\Kevin\Desktop\linked\llist.h(18) : see declaration of 'llist::somfunc'
c:\Documents and Settings\Kevin\Desktop\linked\llist.cpp(12) : error C2371: 'llist::somfunc' : redefinition; different basic types
c:\Documents and Settings\Kevin\Desktop\linked\llist.h(18) : see declaration of 'llist::somfunc'
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