Query the structure field with the user input in C -

i experimenting new thing in c convert user input string structure field , obtain value of it.

typedef struct {   int ant;   char str[50];  }sample;  main ()     {        sample = { 1, "hi" };        char query[50];        scanf ("enter query object inside sample structure %s", query );         /* search , print function */        ex : query field ant         how convert query string input "ant" a.ant , print value of ant ?     }   

please pardon me if not clear in explanation.

input : ant  output : 1 input: str   output : hi input: rat   output: field not present 

ask user member name , selectivity print contents.

lots of additional possibilities detect/ignore leading/trailing white-space, case insensitivity, eof handling, etc., given post's scant details.

   char query[50];    puts("enter query object inside sample structure");    fgets(query, sizeof query, stdin);    // trim potential \n    query[strcspn(query, "\n")] = 0;     if (strcmp(query, "ant")== 0) {      printf("%d\n", a.amt);    } else if (strcmp(query, "str")== 0) {      printf("%s\n", a.str);     } else {      puts("field not present");     }