Why I cant' release the memory?

Question

inline void reverseWord( char* input, const int inputLen)
{
char *temp = new char[inputLen];
int end = inputLen, start = 0;
while (end-- > 0)
temp[start++] = input[end];
delete[] input;
input = temp;
}

Answer 1

Thanks Jamie, u were right:
I had to use instance of char*. There was one mistake too:
the pointer ''temp'' have started with '\0' after reverse function and it is a huge bug. So I've fixed everything and it's looks like this:

Answer 2

So, the problem is, that dynamically allocated char array have to end with '\0' and my "input" doesn't. I've fixed that problem and after that I haven't occurring error by releasing the memory. The problem is, it still doesn't work.

Answer 3

#include <iostream>
#include <string>
#include <random>

#define MAX 21

inline void reverseWord( char* input, const int inputLen)
{
char *temp = new char[inputLen];
int end = inputLen, start = 0;
while (end-- > 0)
temp[start++] = input[end];
delete[] input;
input = temp;
}

inline void printString(const char* input)
{
int i = 0;
while(input[i]!='\0')
std::cout << input[i++];
std::cout << std::endl;
}

inline void strInit(char* input, const int len)
{
for (int i = 0; i < len-1; i++)
input[i] = rand()%2?'a':'b';
input[len - 1] = '\0';
}
//inline char* countSort(char* wordToSort, const int& wordLen)
//{
// char * tempWord = new char[wordLen];
// if (wordLen>0)
// {
// int *count = new int[CHAR];
// for (int i = 0; i <wordLen-1; i++)
// count[(int)wordToSort[i]]++;
// int j = 0;
// for (int i = 0; i < CHAR; i++)
// {
// if (count[i] > 0)
// while (count[i]-- > 0)
// tempWord[j++] = (char)i;
// }
// tempWord[j] = '\0';
// printString(tempWord);
// delete[] wordToSort;
// wordToSort = tempWord;
// }
// return wordToSort;
//}
int main()
{
char* input = new char[MAX];
strInit(input, MAX);
printString(input);
reverseWord(input, MAX);
printString(input);
std::cin.get();
return 0;
}

Answer 4

No error, but still doesn't work. Pointer input points to something wrong, after reverseWord function

Answer 5

#include <iostream>
#include <string>
#include <random>

#define MAX 21

inline void reverseWord( char* &input, const int inputLen)
{
char *temp = new char[inputLen];
int end = inputLen-1, start = 0;
while (end-- > 0)
temp[start++] = input[end];
temp[start]='\0';
delete[] input;
input = temp;
}

inline void printString(const char* input)
{
int i = 0;
while(input[i]!='\0')
std::cout << input[i++];
std::cout << std::endl;
}

inline void strInit(char* input, const int len)
{
for (int i = 0; i < len-1; i++)
input[i] = rand()%2?'a':'b';
input[len - 1] = '\0';
}
//inline char* countSort(char* wordToSort, const int& wordLen)
//{
// char * tempWord = new char[wordLen];
// if (wordLen>0)
// {
// int *count = new int[CHAR];
// for (int i = 0; i <wordLen-1; i++)
// count[(int)wordToSort[i]]++;
// int j = 0;
// for (int i = 0; i < CHAR; i++)
// {
// if (count[i] > 0)
// while (count[i]-- > 0)
// tempWord[j++] = (char)i;
// }
// tempWord[j] =

Answer 6

The pointer that must be deallocated is "temp", isn't it?