Limitations of a variable

Here's my problem : entering a whole number by a user through the beta function scanf and I'd like to check if the user enters a number on the interval of values that an integer can hold. Basically, if it does not exceed the limits.

Code:

---

  # include <stdio.h>

  int main (void)
  (
    int count = 0;

    scanf ( "% i", & number);

    return 0;
  )

---

You get the number as a string, then you use the function to convert this string to int :

Code:

---

# include <errno.h>
  # include <stdlib.h>
  # include <stdio.h>

  sa_int int (void)
  (
    int val;
    char str [100];
    do
    (
        scanf ( "% s", str);
        errno = 0;
        Str = val (str, NULL, 10);
    )
    while (errno == One)
 
    return val;
  )

---

Check this example :

Code:

---

# include <stdio.h>

  int main (void)
  (
    int count = 0;

    if (scanf ( "% i", & number)! = 1)
        puts ( "Must enter an integer");
    if (count> 100 | | number <2)
        puts ( "Not a good interval");

    return 0;
  )

---

Probably the most accurate way in C is to use the floor function. You need to include <math> to use it for example :

Code:

---

float z = 5.6789;
// z * 101 = 567.89
//568.89 + 0.5 = 569.39
//floor(569.39) = 569
//569 / 100 = 5.69
z = floor(z*100+.05)/100;

---