Rounding Floating Point Number To two Decimal Places in C and C++

How to round off a floatig point value to two places. For example, 5.567 should become 5.57 and 5.534 should become 5.53

First Method:- Using Float precision

 #include using namespace std; int main() {     float var = 37.66666;        // Directly print the number with .2f precision     printf("%.2f", var);      return 0; }

Output:
37.67

Second Method : Using integer typecast If we are in Function then how return two decimal point value

 #include using namespace std; float round(float var) {     // 37.66666 * 100 =3766.66     // 3766.66 + .5 =3767.16    for rounding off value     // then type cast to int so value is 3767     // then divided by 100 so the value converted into 37.67     float value = (int)(var * 100 + .5);     return (float)value / 100; }    int main() {     float var = 37.66666;     cout << round(var);     return 0; }

Output:
37.67

Third Method : using sprintf() and sscanf()

 #include using namespace std; float round(float var) {     // we use array of chars to store number     // as a string.     char str;         // Print in string the value of var      // with two decimal point     sprintf(str, "%.2f", var);        // scan string value in var      sscanf(str, "%f", &var);         return var;  }    int main() {     float var = 37.66666;     cout << round(var);     return 0; }

Output:
37.67

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