c++ - How to debug this code written to split an array by space? -

i need write program sentence , split words delimiter(space);so i've wrote code below doesn't seem working properly. idea's how debug code? example:

input:     meet me tonight desired output:      meet      me     tonight given output:       meet     me ton      ght 

i'm confused why output not expect. here's i've come far:

#include <iostream> using namespace std; const int buffer_size=255;  int main() {           char* buffer;    buffer = new char[255];    cout << "enter statement:" << endl;    cin.getline(buffer, buffer_size);    int q=0, numofwords=1;    while(buffer[q] != '\0')    {       if(buffer[q] == ' ')           numofwords++;       q++;    }    char** wordsarray;    wordsarray = new char* [numofwords];       int lenofeachword = 0, num = 0;    int* sizeofwords = new int [numofwords];    for(int i=0; i<q; i++)    {       if(buffer[i]==' ')       {          sizeofwords[num] = lenofeachword;          wordsarray[num] = new char[lenofeachword];          num++;        }else          lenofeachword++;    }    sizeofwords[num] = lenofeachword;      wordsarray[num] = new char[lenofeachword];     int k=0;    for(int i=0; i<numofwords; i++)    {       for(int j=0; j<sizeofwords[i]; j++)       {          wordsarray[i][j] = buffer[k];          k++;       }       k++;    }     for(int i=0; i<numofwords; i++)    {       for(int j=0; j<sizeofwords[i]; j++)       {          cout << wordsarray[i][j];       }       cout << endl;     } } 

the problem snippet (comment):

if(buffer[i]==' ') {     sizeofwords[num] = lenofeachword;     wordsarray[num] = new char[lenofeachword];     num++; }else{     lenofeachword++; // <- keeps increasing } 

so snippet skip lot of strings , possibly cause seg fault somewhere along line:

for(int i=0; i<numofwords;i++){     for(int j=0;j<sizeofwords[i];j++)     {         wordsarray[i][j]=buffer[k];         k++;     }     k++; } 

also if c++, why still using c-style write program? simple stringstream strings in less lines of code