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};

Source: dummies.com

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.

Source: fredosaurus.com

Similar codes

0 vote134 views1 answer
C++ array count freqeancy
C++
7 votes105 views2 answers
Min heap stl
C++
31 votes55 views1 answer
When to use struct vs class c++
C++
0 vote109 views1 answer
Gcc suppress warning inline
C++
1 vote106 views2 answers
Convert letters to uppercase in c++
C++
4 votes90 views1 answer
C++ show time elapsed
C++
1 vote86 views1 answer
How to get 4 decimal places in c++
C++
0 vote105 views1 answer
How to make a pointer point to a the last value in an array
C++
0 vote149 views1 answer
Lnk2001 unresolved external symbol __imp_PlaySoundA
C++
0 vote104 views1 answer
How to write int variable c++
C++