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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <string.h>
  4. char* my_strcpy(char** dst, const char* src)
  5. {
  6.     *dst = (char *)malloc(sizeof(char)*10); //malloc in function
  7.     char* ret= *dst;
  8.     while(*ret++ = *src++);
  9.     return ret;
  10. }
  11.  
  12.  
  13. void my_str_print(char * my_string)
  14. {
  15.     int i;
  16.     for( i=0; i<strlen(my_string); i++)
  17.     {
  18.         printf("%c",my_string[i]);
  19.     }
  20. }
  21. int main ()
  22. {
  23.     char str1[]="abcde";
  24.     char* str2;
  25.     printf("the address:%X\n",str2);
  26.     my_strcpy(&str2,str1);
  27.     my_str_print(str2);
  28.     system("PAUSE");
  29.     free(str2);
  30.     return 0;
  31. }
  32.  
Success #stdin #stdout 0.02s 5312KB
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stdin
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Standard input is empty
stdout
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the address:8048470
abcde
https://ideone.com/qPv9T
language:
C (gcc 8.3)
created:
13 years ago
visibility:
public

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