Revision as of 18:58, 26 January 2007

Control structures are features of programming languages that influence the code flow. Two common examples are loops and conditions. The task here is to demonstrate control structures supported by different programming languages.

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Conditional Structures

Flow Control Structures

Loop Structures

Exceptions

Iterative

These control structure operate on datasets.

C++

@@ Line 19: / Line 19: @@
 ==[[C plus plus|C++]]==
 [[Category:C plus plus]]
-===for_each ===
-'''Compiler:''' [[GCC]] 4.1.1
-  #include <iostream>  // std::cout, std::endl
-  #include <vector>    // std::vector
-  #include <algorithm> // std::for_each
-  struct sum
-  {
-    int _sum;
-    sum() : _sum(0) {};                         // Initialize sum with 0;
-    void operator() (int a) { _sum += a; }      // this function will be called for every element
-  };
-  int main()
-  {
-    std::vector<int> v;
-    v.push_back(10);
-    v.push_back(23);
-    v.push_back(34);
-    /* Note that for_each gets a fresh instance of sum passed,
-     * applies every element beginning with *v.begin() up to,
-     * but not including v.end() to the function object
-     * and returns a copy of it.
-     */
-    sum the_sum = std::for_each(v.begin(), v.end(), sum());
-    std::cout << "The sum is " << the_sum._sum << std::endl;
-    return 0;
-  }
-''Where does the above fit in?''