C++ examples for Data Type:char array
Sort an array of pointers to strings
#include <iostream> #include <cstring> //for strcmp(), etc. using namespace std; const int DAYS = 7; //number of pointers in array int main()/* w w w. j a va 2 s.c om*/ { void bsort(char**, int); //prototype char* arrptrs[DAYS] = { "Sunday", "Monday", "Tuesday","Wednesday", "Thursday","Friday", "Saturday" }; cout << "\nUnsorted:\n"; for (int j = 0; j<DAYS; j++) //display unsorted strings cout << *(arrptrs + j) << endl; bsort(arrptrs, DAYS); //sort the strings cout << "\nSorted:\n"; for (int j = 0; j<DAYS; j++) //display sorted strings cout << *(arrptrs + j) << endl; return 0; } void bsort(char** pp, int n) //sort pointers to strings { void order(char**, char**); //prototype int j, k; //indexes to array for (j = 0; j<n - 1; j++) //outer loop for (k = j + 1; k<n; k++) //inner loop starts at outer order(pp + j, pp + k); //order the pointer contents } void order(char** pp1, char** pp2) //orders two pointers { //if string in 1st is if (strcmp(*pp1, *pp2) > 0) //larger than in 2nd, { char* tempptr = *pp1; //swap the pointers *pp1 = *pp2; *pp2 = tempptr; } }