Structures

Create structure

struct MyStructure { // structure declaration
  int myNum; // member (int variable)
  char myLetter; // member (char variable)
}; // end the structure with a semicolon

Create a struct variable called s1

struct myStructure {
  int myNum;
  char myLetter;
};

int main() {
  struct myStructure s1;

  return 0;
}

Strings in the structure

struct myStructure {
  int myNum;
  char myLetter;
  char myString[30]; // String
};

int main() {
  struct myStructure s1;
  strcpy(s1. myString, "Some text");
  // print value
  printf("My string: %s\n", s1.myString);

  return 0;
}

Assigning values to strings using the strcpy function

Accessing structure members

// create a structure called myStructure
struct myStructure {
  int myNum;
  char myLetter;
};

int main() {
  // Create a structure variable called myStructure called s1
  struct myStructure s1;
  // Assign values ​​to the members of s1
  s1.myNum = 13;
  s1.myLetter = 'B';

  // Create a structure variable of myStructure called s2
  // and assign it a value
  struct myStructure s2 = {13, 'B'};
  // print value
  printf("My number: %d\n", s1.myNum);
  printf("My letter: %c\n", s1.myLetter);

  return 0;
}

Create different structure variables

struct myStructure s1;
struct myStructure s2;
// Assign values ​​to different structure variables
s1.myNum = 13;
s1.myLetter = 'B';

s2.myNum = 20;
s2.myLetter = 'C';

Copy structure

struct myStructure s1 = {
  13, 'B', "Some text"
};

struct myStructure s2;
s2 = s1;

In the example, the value of s1 is copied to s2

Modify value

// Create a struct variable and assign it a value
struct myStructure s1 = {
  13, 'B'
};
// modify the value
s1.myNum = 30;
s1.myLetter = 'C';
// print value
printf("%d %c",
    s1.myNum,
    s1.myLetter);

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