char * myFunction () {
char sub_str[10][20];
return sub_str;
}
void main () {
char *str;
str = myFunction();
}
error:return from incompatible pointer type
thanks
A string array in C can be used either with char**
or with char*[]
. However, you cannot return values stored on the stack, as in your function. If you want to return the string array, you have to reserve it dynamically:
char** myFunction() {
char ** sub_str = malloc(10 * sizeof(char*));
for (int i =0 ; i < 10; ++i)
sub_str[i] = malloc(20 * sizeof(char));
/* Fill the sub_str strings */
return sub_str;
}
Then, main can get the string array like this:
char** str = myFunction();
printf("%s", str[0]); /* Prints the first string. */
EDIT: Since we allocated sub_str, we now return a memory address that can be accessed in the main