initialize an array in c++
int nums[100] = {0}; // initiallize all values to 0
int nums[5] = {1,2,3,4,5};
// type name[size] = {values};initialize an array in c++
int nums[100] = {0}; // initiallize all values to 0
int nums[5] = {1,2,3,4,5};
// type name[size] = {values};number of elements in c++ array
#include <iostream>
using std::cout;
int a[] = { 1, 2, 3, 4, 5 };
int counta()
{
return sizeof( a ) / sizeof( a[ 0 ] ); // works, since a[] is an array
}
int countb( int b[] )
{
return sizeof( b ) / sizeof( b[ 0 ] ); // fails, since b[] is a pointer
}how to initialize array with new in c++
int* a = NULL; // Pointer to int, initialize to nothing.
int n; // Size needed for array
cin >> n; // Read in the size
a = new int[n]; // Allocate n ints and save ptr in a.
for (int i=0; i<n; i++) {
a[i] = 0; // Initialize all elements to zero.
}
. . . // Use a as a normal array
delete [] a; // When done, free memory pointed to by a.
a = NULL; // Clear a to prevent using invalid memory reference.how to make an array c++
int foo [] = { 16, 2, 77, 40, 12071 };c++ initialise array
int nCount[] = {1, 2, 3, 4, 5};Copyright © 2021 Codeinu
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