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c++ get length of array

Noq on Jan 18, 2020

int arr[5];
int len = sizeof(arr) / sizeof(arr[0]);
// returns 5

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array length c++

Arrogant Anteater on Jul 14, 2020

#include <iostream>
using namespace std;

#define size(type) ((char *)(&type+1)-(char*)(&type))

int main(){
  int arr[5] = {1, 2, 3, 4, 5};
  cout << size(arr) / size(arr[0]) << endl; //returns 5
  //alternatively
  cout << sizeof(arr) / sizeof(int) << endl; //returns 5
}

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find length of array c++

intricate_symbol on Mar 08, 2021

#include <iostream>
using namespace std;
int main() {
   int arr[5] = {4, 1, 8, 2, 9};
   int len = sizeof(arr)/sizeof(arr[0]);
   cout << "The length of the array is: " << len;
   return 0;
}

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length of array in cpp

Horrible Hare on May 25, 2020

int size = sizeof(arr)/sizeof(arr[0])

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array length c++

Spotless Spider on May 07, 2020

// array::size
#include <iostream>
#include <array>

int main ()
{
  std::array<int,5> myints;
  std::cout << "size of myints: " << myints.size() << std::endl;
  std::cout << "sizeof(myints): " << sizeof(myints) << std::endl;

  return 0;
}

Source: www.cplusplus.com

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"find length of array c++" Code Answer's

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