What is ctype.h and studio.h used for in c++? Also, what does strcat actually mean??

Question

just some basics

Answer 1

only for gets ??

Answer 2

stdio.h or cstdio is used for a faster way of reading the user input,such as printf and scanf
ctype.h or cctype is a library that has some very useful functions for working with strings like isnum(char str) that verifies if a string is a number or not.
strcat is used for joining string
also try to view the c++ refference

Answer 3

thank you

Answer 4

strcat is used to join different strings

Answer 5

stdio is used when gets is used in c++ coding for reading string