When creating a function that adds students to an array of structures, highlights red.
Here is the whole code

# include & lt; stdio.h & gt;
#Include & lt; String.h & gt;
#Include & lt; locale.h & gt;
Struct AddStudent (Char Name [], Unsigned Int Age, Unsigned Int Course, Unsigned Int);
STRUCT STUDENT {
  Char Name [50];
  unsigned int age;
  unsigned int course;
};
unsigned int student_counter = 0;
INT MAIN (Void) {
  SETLOCALE (LC_ALL, "RUS");
  STRUCT STUDENT ST [20];
  STRCPY_S (ST [0] .Name, 50, "Ruslan");
  ST [0] .AGE = 18;
  ST [0] .course = 1;
  Student_counter + = 1;
  For (int i = 0; i & lt; student_counter; i ++) {
    PrintF ("% s \ t% d Course \ t% d years \ n", St [i] .name, ST [I] .COURSE, ST [I] .AGEAGE);
  }
  _Getch ();
  Return 0;
}
Struct AddStudent (Char Name [], Unsigned Age, Unsigned Course, Unsigned Age) {
  Student Res_ST;
  SCRCPY_S (RES_ST, 50, NAME);
}

Why can’t create an addstudent function? Thanks in advance.

Answer 1

You would have to study pointers and allocation of memory

Here is the working example:

# include & lt; stdio.h & gt;
#Include & lt; stdlib.h & gt;
#Include & lt; String.h & gt;
#Include & lt; locale.h & gt;
Struct Student * AddStudent (Char * Name, Unsigned Int Age, Unsigned Int Course);
STRUCT STUDENT {
  Char Name [50];
  unsigned int age;
  unsigned int course;
};
unsigned int student_counter = 0;
INT MAIN (Void) {
  SETLOCALE (LC_ALL, "RUS");
  STRUCT STUDENT * ST [20];
  ST [0] = addstudent ("Ruslan", 18, 1);
  Student_counter + = 1;
  For (int i = 0; i & lt; student_counter; i ++) {
    PrintF ("% s \ t% d Course \ t% d years \ n", ST [I] - & GT; NAME, ST [I] - & GT; Course, ST [I] - & gt; age);
  }
  Return 0;
}
Struct Student * AddStudent (Char * Name, Unsigned Int Age, Unsigned Int Course) {
  struct Student * Res_ST = Malloc (Sizeof (Struct Student));
  STRCPY (RES_ST- & GT; NAME, NAME);
  RES_ST- & GT; AGE = AGE;
  RES_ST- & GT; Course = Course;
  RETURN RES_ST;
}

and the addstudent function you can’t create because:

• In the poundation arguments after unsigned, you need to write a data type int

• You do not return the structure you created, it is created inside the function and after its completion it disappears

• The arguments are duplicated by Age