How do I find the length of an array in C++?

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Smita Santosh

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The sizeof() operator can be used to find the length of an array.
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!!! Special Math's classes !!!

Using sizeof operator The sizeof() operator can be used to find the length of an array. A program that demonstrates the use of the sizeof operator in C++ is given as follows. Example Live Demo #include using namespace std; int main() { int arr = {4, 1, 8, 2, 9}; int len = sizeof(arr)/sizeof(arr); ...
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Using sizeof operator The sizeof() operator can be used to find the length of an array. A program that demonstrates the use of the sizeof operator in C++ is given as follows. Example Live Demo #include 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; } read less
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