Int length c++

C++ int length

ex: input = 2424, output = 4
static int intlen(int n)
{
  if (n == 0) return 1;
  else if (n < 0) return 2 + static_cast<std::size_t>(std::log10(-n));
  else if (n > 0) return 1 + static_cast<std::size_t>(std::log10(n));
}

Source: grepper.com

Length of number c++

#include<cmath>
    ...
    int size = trunc(log10(num)) + 1
....

Source: stackoverflow.com

Length of number c++

std::to_string(num).length()

Source: stackoverflow.com

C++ length of int

unsigned int number_of_digits = 0;

do {
     ++number_of_digits; 
     n /= base;
} while (n);

Source: stackoverflow.com

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