wont let me create a vector of my user defined class
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This is for a frequency table that will eventually allow me to build a Huffman coding tree. I want the class FrequencyTable to simply hold a vector of the type FrequencyNode however I keep getting an error about ISO forbiding the creation of the vector. Any ideas why?
Error:
Class FrequencyNode
Class FrequencyTable
Thanks
Error:
FrequencyTable.h:11: error: ISO C++ forbids declaration of ‘vector’ with no type
CPP Syntax (Toggle Plain Text)
#ifndef FREQUENCY_NODE_H #define FREQUENCY_NODE_H #include <iostream> #include <stdlib.h> #include <string> class FrequencyNode { private: int frequency; //Key char character; //Element public: FrequencyNode() //default constructor :character(0) {} FrequencyNode(int freqParam, char charParam) //constructor :frequency(freqParam), character(charParam) {} int getKey() { return frequency; } char getChar() { return character; } int incrimentKey() { frequency++; } int assignChar(char ch) { character = ch; } }; #endif
Class FrequencyTable
CPP Syntax (Toggle Plain Text)
#include "FrequencyNode.h" #include <vector> #ifndef FREQUENCY_TABLE_H #define FREQUENCY_TABLE_H class FrequencyTable { private: vector<FrequencyNode> list; public: int getlist() { return list; } FrequencyNode getMin(); bool charInTable(char ch); }; //FUNCTION DEFINITIONS FrequencyNode FrequencyTable::getMin() { FrequencyNode smallest = list[0]; for(int i = 0; i < list.size(); i++) { if(list[i].getKey() < smallest.getKey[i]) { smallest = list[i]; } //end if statment } //end for loop return smallest; } bool FrequencyTable::charInTable(char ch) { for(int i = 0; i < list.size(); i++) { if(list[i].getChar() == ch) { return true; } //end if statment } //end for loop return false; } #endif
Thanks
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