malloc - C- How to free the following malloced memory -


can please me on how free 2 dimensional array here. tried using loop free error saying:

 *** glibc detected *** ./assignment4: free(): invalid pointer: 0x0932b196 ***

the thing when free 0th element alone dont problem. when free elements [1] [7] error.

char ** stringone;  stringone = malloc(sizeof(char*)*8);  stringone[0] = malloc(sizeof(char)*6); stringone[0] = strtok(listofdetails[0], " ");  for(i=1;i<8;i++) {     stringone[i] = malloc(sizeof(char)*6);     stringone[i] = strtok(null, " "); }  for(i=0;i<8;i++) // freeing memory {     free(stringone[i]); }

the strtok function returns pointer string you're tokenizing, , pointer overwrites pointer allocate, leading lose pointers allocated memory.

there 2 solutions: don't allocate memory (and don't free), or copy allocated memory.


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