malloc dynamic array in dynamic array of structs

Question

typedef struct {
    char *word;
} STR;

int main()
{
    STR *arr=(STR*)malloc(5*sizeof(*arr));
    STR[2].word=(char*)malloc(200*sizeof(char));
    STR[2].word=(char*)         


        

Answer 1

#include 
#include 


typedef struct{
    char *word;
}STR;

int main(){
    STR *arr=(STR*)malloc(5*sizeof(STR));
    arr[2].word=(char*)malloc(200*sizeof(char));
    if(realloc(arr[2].word, 400*sizeof(char))==NULL){
        /* increasing char array size from 200 to 400 failed. 200 char array was unchanged */
        printf("increasing array size not OK\n");
    }
    else{
        printf("increasing array size OK\n");
    }
    free(arr[2].word);
    free(arr);
    return 0;
}