c - merging of text -

can please me merging of 2 texts 1 using stdio.h , stdlib.h? result should helloworld.

so far, have following, there mistake somewhere.

#define _crt_secure_no_warnings #include <stdio.h> #include <stdlib.h>  char *spojeni(char *t1, char *t2) {     char pole_spolecne[10];     (*t1 = 0; *t1 < 5; t1++)     {         pole_spolecne[*t1] = *t1;     }      (*t2 = 0; *t2 < 10; t2++)     {         pole_spolecne[*t2 + 5] = *t2;     }      return pole_spolecne; }  int main() {     char pole1[] = { "hello" };     char pole2[] = { "world" };        printf("%s\n", spojeni(pole1, pole2));      system("pause");     return 0; } 

my new solution, returns error @ end:

#define _crt_secure_no_warnings #include <stdio.h> #include <stdlib.h>  char *spojeni(char *t1, char *t2) {     char pole_cele[20];     char *p_pole_cele;     p_pole_cele = t1;     strcat(p_pole_cele, t2);      return p_pole_cele; }  int main() {     char pole1[] = { "hello" };     char pole2[] = { "world" };      char *p_pole1;     char *p_pole2;      p_pole1 = pole1;     p_pole2 = pole2;       printf("%s\n)", spojeni(p_pole1, p_pole2));       system("pause");     return 0; } 

finally, change of function helped: char *spojeni(char *t1, char *t2)

{     char pole_cele[20];     char *p_pole_cele;     p_pole_cele = (char *)malloc(10);     strcpy(p_pole_cele, t1);     p_pole_cele = (char *)realloc(p_pole_cele, 20);     strcat(p_pole_cele, t2);      return p_pole_cele; } 

i not quite sure how answer this, teaching exercise, and, blunt, code given shows lack of understanding of pointers. , pointers topic better taught in person via web-site comment.

a few hints, though:

• think pointers, pointing to, , makes them different array indices.

• draw diagrams visualize you're doing.

• your exercise can solved using calloc(), strlen() , strcpy().