我在课堂上被分配了一项任务:
编写一个程序,通过使用指针来创建和管理数组。您的主程序应仅通过各种函数与指针/数组交互。然后,这些函数会将数组的使用限制为正确处理。例如,这些函数将消除超出数组边界的可能性。
到目前为止,我已经编写了程序并修复了大部分错误,但是无论我尝试什么,我都会不断收到“未在此范围内声明的函数”错误。该程序包括以下文件:main.cpp
MyArray.cpp
和MyArray.h
主文件
#include <iostream>
#include "MyArray.h"
using namespace std;
int main(int argc, char * argv[]) {
int *Array1, *Array2;
int Array1Size(10), Array2Size(10);
int Array1Value(0), Array2Value(0);
cout << "Enter Size and Initial value for Array1: ";
cin >> Array1Size >> Array1Value;
cout << "Enter Size and Initial value for Array2: ";
cin >> Array2Size >> Array2Value;
CreateArray(Array1, Array1Size);
InitArray(Array1, Array1Size, Array1Value);
CreateArray(Array2, Array2Size);
InitArray(Array2, Array2Size, Array2Value);
cout << "Printing Array1:" << endl;
PrintArray(Array1, Array1Size);
cout << endl;
cout << "Printing Array2:" << endl;
PrintArray(Array2, Array2Size);
cout << endl;
if(CopyArray(Array1, Array1Size, Array2, Array2Size)) {
cout << "Copy was successful" << endl;
} else {
cout << "Copy was not successful" << endl;
}
cout << "Printing Array1:" << endl;
PrintArray(Array1, Array1Size);
cout << endl;
EnterArray(Array1, Array1Size);
// MergeArray(Array1, Array1Size, Array2, Array2Size);
cout << "Printing Array1:" << endl;
PrintArray(Array1, Array1Size);
cout << endl;
return 0;
}
MyArray.h
#ifndef _MyArray_h_included_
#define _MyArray_h_included_
class MyArray
{
public:
void CreateArray(int *array, int size);
/*
CreateArray(int *array, int size): Will accept a pointer to an array, and the size of the array and will allocate the appropriate amount of memory for the array
*/
void InitArray(int *array, int size, int value);
/*
InitArray(Array1, Array1Size, Array1Value): Will initialize the contents of the arry Array1 to the value Array1Value
*/
void PrintArray(int *array, int size);
/*
PrintArray(Array1, Array1Size): Will print the contest of the Array1
*/
bool CopyArray(int *arrayOne, int sizeOne, int *arrayTwo, int sizeTwo);
/*
CopyArray(Array1, Arrary1Size, Array2, Array2Size): Will copy the contents of Array2 to Array1 iff the two arrays are of equal size. If the copying process is successfully completed, then a value of 1 is returned, otherwise a value of 0 is returned.
*/
void EnterArray(int *array, int size);
/*
EnterArray(Array1, Array1Size): Will populate the Array1 from the stdin by prompting the user to enter all elements of the array.
*/
};
#endif
我的数组.cpp
#include <iostream>
#include "MyArray.h"
using namespace std;
void MyArray::CreateArray(int *array, int size) {
array = new int[size];
}
/*
CreateArray(int *array, int size): Will accept a pointer to an array, and the size of the array and will allocate the appropriate amount of memory for the array
*/
void MyArray::InitArray(int *array, int size, int value) {
for(int index(0); index < size; index++) {
array[index] = value;
}
}
/*
InitArray(Array1, Array1Size, Array1Value): Will initialize the contents of the arry Array1 to the value Array1Value
*/
void MyArray::PrintArray(int *array, int size) {
for(int index(0); index < size; index++) {
cout << "Value of index: " << index << " is " << array[index] << endl;
}
}
/*
PrintArray(Array1, Array1Size): Will print the contest of the Array1
*/
bool MyArray::CopyArray(int *arrayOne, int sizeOne, int *arrayTwo, int sizeTwo) {
if(sizeOne != sizeTwo) {
return false;
} else {
for(int index(0); index < sizeTwo; index++) {
arrayOne[index] = arrayTwo[index];
}
return true;
}
}
/*
CopyArray(Array1, Arrary1Size, Array2, Array2Size): Will copy the contents of Array2 to Array1 iff the two arrays are of equal size. If the copying process is successfully completed, then a value of 1 is returned, otherwise a value of 0 is returned.
*/
void MyArray::EnterArray(int *array, int size){
int index(0);
while(index < size) {
int value(0);
cout << "Enter the value for index: " << index + 1 << endl;
cin >> value;
array[index] = value;
}
}
/*
EnterArray(Array1, Array1Size): Will populate the Array1 from the stdin by prompting the user to enter all elements of the array.
*/
我得到的错误类似于:(main.cpp:'LineNumber': error. 'Every Function in MyArray.cpp' was not declared in this scope
我会复制粘贴确切的错误,但如果我编译我的代码,我无法从我用来连接到远程主机的终端复制粘贴)
我一直在尝试解决这个问题几个小时,但我无法弄清楚,我什至查看了其他 Stack 帖子,例如'foo' 未在此范围内声明 c++
任何帮助将不胜感激,谢谢。
另外我没有写main.cpp,它是随作业给出的。