Error Request For Member Which Is Of Non-class Type Nt
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Request For Member Which Is Of Non Class Type Char
only takes a minute: Sign up error: request for member '..' in '..' which is of non-class type up vote 235 down vote favorite 45 I have a class with two constructors, one that takes no arguments and one that takes one argument. Creating objects using the constructor that takes one argument works as expected. However, if I create objects request for member which is of non-class type template using the constructor that takes no arguments, I get an error. For instance, if I compile this code (using g++ 4.0.1)... class Foo { public: Foo() {}; Foo(int a) {}; void bar() {}; }; int main() { // this works... Foo foo1(1); foo1.bar(); // this does not... Foo foo2(); foo2.bar(); return 0; } ... I get the following error: nonclass.cpp: In function ‘int main(int, const char**)’: nonclass.cpp:17: error: request for member ‘bar’ in ‘foo2’, which is of non-class type ‘Foo ()()’ Why is this, and how do I make it work? c++ share|improve this question edited Jun 24 '14 at 5:42 user2864740 35.2k43779 asked May 18 '09 at 12:38 sarnesjo 1,50121016 related: stackoverflow.com/q/2318650/69537 –Meysam Aug 6 '12 at 6:24 add a comment| 4 Answers 4 active oldest votes up vote 372 down vote accepted Foo foo2(); change to Foo foo2; You get the error because compiler thinks of Foo foo2() as of function declaration with name 'foo2' and the return type 'Foo'. But in that case If we change to Foo foo2 , the compiler migh
cannot appear in a constant-expression 4 'VARIABLE' cannot be used as a function 5 conversion from 'TYPE' to non-scalar request for member which is of pointer type type 'TYPE' requested 6 could not convert 'STATEMENT' to 'bool' 7
Request For Member In Something Not A Structure Or Union
declaration of 'FUNCTION' outside of class is not definition 8 declaration of 'VARIABLE' shadows a parameter
Void * Is Not A Pointer To Object Type
9 'TYPE' does not name a type 10 expected 'TOKEN' before 'TOKEN' token 11 expected primary-expression before 'TOKEN' 12 expected unqualified-id before 13 incompatible types in assignment http://stackoverflow.com/questions/877523/error-request-for-member-in-which-is-of-non-class-type of 'TYPE' to 'TYPE' 14 invalid conversion from 'TYPE' to 'TYPE' 15 invalid operands of types 'TYPE' and 'TYPE' to binary 'FUNCTION' 16 invalid use of template-name 17 is not a member of 18 'TYPE' is not a type 19 'CLASS_MEMBER' is private within this context 20 ISO C++ forbids declaration of 'FUNCTION' https://en.wikibooks.org/wiki/GCC_Debugging/g%2B%2B/Errors with no type 21 multiple definitions of 22 'CLASS FUNCTION(ARGUMENTS)' must have an argument of class or enumerated type 23 new types may not be defined in a return type 24 no match for call to 'FUNCTION' 25 no matching function for call to 'FUNCTION' 26 non-constant 'VARIABLE' cannot be used as template argument 27 non-member function 'FUNCTION' cannot have cv-qualifier 28 passing 'const OBJECT' as 'this' argument of 'FUNCTION' discards qualifiers 29 request for member 'NAME' in 'NAME', which is of non-class type 'CLASS' 30 statement cannot resolve address of overloaded function 31 two or more data types in declaration of 'NAME' 32
ValType> class TreeNode {public: ValType val; TreeNode *left; TreeNode *right; TreeNode(ValType iVal) { val = iVal; left=NULL; right=NULL; } void setVal(ValType newVal) { val = newVal; } };class BinaryTree { TreeNode *root = request for new TreeNode(0); void print(TreeNode *node) { if(node!=NULL) { cout << "my val:" << node->val << endl; if(node->left==NULL) cout << "my left: none" << endl; else cout << "my left:" << node->left->val << endl; if(node->right==NULL) cout request for member << "my Right: none" << endl; else cout << "my Right:" << node->right->val << endl; puts("-----------"); print(node->left); print(node->right); } }public: BinaryTree(TreeNode *root) { this->root = root; } TreeNode* getRoot() { return root; } void print() { print(getRoot()); } void insert(TreeNode *newNode) { if(root==NULL) root = newNode; else insertNode(newNode, root); } void insertNode(TreeNode *newNode, TreeNode *oldNode) { // Smaller goes left if(newNode->val