Min In C++

  



First give a meaningful name to our function. Say max function is used to find maximum between two numbers. Second, we need to find maximum between two numbers. Hence, the function must accept two parameters of int type say, max (int num1, int num2). Finally, the function should return maximum among given two numbers. We would like to show you a description here but the site won’t allow us. C/C Code Generation Generate C and C code using MATLAB® Coder™. Usage notes and limitations: If you specify an empty array for the second argument in order to supply dim or nanflag, the second argument must be of fixed-size and of dimension 0 -by- 0. Returns the minimum finite value representable by the numeric type T. For floating-point types with denormalization, min returns the minimum positive normalized value.Note that this behavior may be unexpected, especially when compared to the behavior of min for integral types.

  1. C++ Math Min
  2. C++ Min In Vector
  3. Min In C++
  4. C++ Minimum Value
  5. Min In C++ Vector
  6. Find Max And Min In C++
  7. C++ Minimum

Enumerable.Min is extension method from System.Linq namespace. It returns minimal value of numeric collection.

Min for Numeric Types

C++ maximum function

C++ Math Min

Gets minimal number from list of integer numbers.

var numbers = newList<int> { 8, 2, 6, 3 }; int minNumber = numbers.Min(); // minNumber: 2

Gets minimal number from list of decimal numbers.

var numbers = newList<decimal> { 8.1m, 2.2m, 6.1m, 3.3m }; decimal minNumber = numbers.Min(); // minNumber: 2.2

Calling Min on empty collection throws exception.

var numbers = newList<int>(); // empty listint minNumber = numbers.Min(); // throws InvalidOperationException
C++C++ find min in array

Min for Nullable Numeric Types

Gets minimal number from list of nullable integers.

var numbers = newList<int?> { 8, 2, null, 3 }; int? minNumber = numbers.Min(); // minNumber: 2

Returns null if the collection contains only null values.

var numbers = newList<int?> { null }; int? minNumber = numbers.Min(); // minNumber: null
C++

Returns null if the collection is empty.

C++
var numbers = newList<int?>(); // empty listint? minNumber = numbers.Min(); // minNumber: null

Min with Selector

C++ Min In Vector

This example gets length of the longest string.

var stringList = newList<string> { '88888888', '22', '666666', '333' }; // these two lines do the sameint minLength = stringList.Select(x => x.Length).Min(); // minLength: 2int minLength = stringList.Min(x => x.Length); // minLength: 2

Min for Types Implementing IComparable

LINQ method Min can be used also on collection of custom type (not numeric type like int or decimal). The custom type have to implement IComparable interface.

Lets have custom type Money which implements IComparable.

publicstructMoney : IComparable<Money> { public Money(decimal value) : this() { Value = value; } publicdecimal Value { get; privateset; } publicintCompareTo(Money other) { return Value.CompareTo(other.Value); } }

And this is usage of Min method on the Money collection.

var amounts = newList<Money> { newMoney(30), newMoney(10) }; Money minAmount = amounts.Min(); // minAmount: Money with value 10

Min with Query Syntax

LINQ query expression to get minimal item in the collection.

Min In C++

var list = newList<int> { 8, 2, 6, 3 }; int minNumber = (from x in list select x).Min(); // minNumber: 2

LINQ query expression to get minimal item which matches specified predicate.

var list = newList<int> { 8, 2, 6, 3 }; int minNumber = (from x in list where x > 4 select x).Min(); // minNumber: 6

LINQ query expression to get minimal string length using selector.

var list = newList<string> { '88888888', '22', '666666', '333' }; int minLength = (from x in list select x.Length).Min(); // minLength: 2

Min with Group By

This example shows how to get minimal value per group. Lets have players. Each player belongs to a team and have a score. Team best score is minimal score of players in a team.

var players = newList<Player> { newPlayer { Name = 'Alex', Team = 'A', Score = 10 }, newPlayer { Name = 'Anna', Team = 'A', Score = 20 }, newPlayer { Name = 'Luke', Team = 'L', Score = 60 }, newPlayer { Name = 'Lucy', Team = 'L', Score = 40 }, }; var teamBestScores = from player in players group player by player.Team into playerGroup selectnew { Team = playerGroup.Key, BestScore = playerGroup.Min(x => x.Score), }; // teamBestScores is collection of anonymous objects:// { Team = 'A', BestScore = 10 }// { Team = 'L', BestScore = 40 }

Min Implementation

This is .NET Framework implementation of Enumerable.Min method for collection of numeric type (in this case IEnumerable<int>). Note that it throws the exception for an empty collection on the last line (throwError.NoElements();)).

C++ Minimum Value

publicstaticintMin(thisIEnumerable<int> source) { if (source null) throwError.ArgumentNull('source'); int value = 0; bool hasValue = false; foreach (int x in source) { if (hasValue) { if (x < value) value = x; } else { value = x; hasValue = true; } } if (hasValue) return value; throwError.NoElements(); }

This is .NET Framework implementation of Enumerable.Min method for collection of nullable numeric type (in this case IEnumerable<int?>). Note that it returns null for an empty collection (int? value = null;). Also notice that it returns null if all values in the collection are null.

publicstaticint? Min(thisIEnumerable<int?> source) { if (source null) throwError.ArgumentNull('source'); int? value = null; foreach (int? x in source) { if (value null || x < value) value = x; } return value; }

Min In C++ Vector


See also

  • MSDN Enumerable.Min - .NET Framework documentation
  • LINQ Aggregation Methods
    • LINQ Sum - gets sum of numeric collection
    • LINQ Max - gets maximal item from collection
    • LINQ Min - gets minimal item from collection
    • LINQ Count - counts number of items in a collection (result type is Int32)
    • LINQ LongCount - counts number of items in a collection (result type is Int64)
    • LINQ Average - computes average value of numeric collection
    • LINQ Aggregate - applies aggregate function to a collection
  • C# List - illustrative examples of all List<T> methods
  • C# foreach - how foreach and IEnumerable works debuggable online
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Find Max And Min In C++

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C++ Minimum

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