Merge pull request #1092 from EmilEnchev/patch-2

Example of all_of

Author: Colin Robertson

docs/standard-library/algorithm-functions.md

@@ -172,6 +172,41 @@ Returns **true** if the condition is detected at each element in the indicated r
 
 The template function returns **true** only if, for each `N` in the range `[0,Last - first)`, the predicate `comp(*(_First + N))` is **true**.
 
+### Example
+
+```cpp
+// alg_all_of.cpp
+// compile with: /EHsc
+#include <list>
+#include <algorithm>
+#include <iostream>
+
+int main()
+{
+    using namespace std;
+
+    list<int> li { 50, 40, 10, 20, 20 };
+    list<int>::iterator iter;
+
+    cout << "li = ( ";
+    for (iter = li.begin(); iter != li.end(); iter++)
+        cout << *iter << " ";
+    cout << ")" << endl;
+
+    // Check if all elements in li are even.
+    auto is_even = [](int elem){ return !(elem % 2); };
+    if (all_of(li.begin(), li.end(), is_even))
+        cout << "All the elements are even numbers.\n";
+    else
+        cout << "Not all the elements are even numbers.\n";
+}
+```
+
+```Output
+L = ( 50 40 10 20 20 )
+All the elements are even numbers.
+```
+
 ## <a name="any_of"></a>  any_of
 
 Returns **true** when a condition is present at least once in the specified range of elements.