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Single Structure

Represents a single-precision floating point number.

For a list of all members of this type, see Single Members.

System.Object
   System.ValueType
      System.Single

[Visual Basic]
<Serializable>
Public Structure Single
   Implements IComparable, IFormattable, IConvertible
[C#]
[Serializable]
public struct Single : IComparable, IFormattable, IConvertible
[C++]
[Serializable]
public __value struct Single : public IComparable, IFormattable,
   IConvertible

[JScript] In JScript, you can use the structures in the .NET Framework, but you cannot define your own.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Remarks

The Single value type represents a single-precision 32-bit number with values ranging from negative 3.402823e38 to positive 3.402823e38, as well as positive or negative zero, PositiveInfinity, NegativeInfinity, and not a number (NaN).

Single complies with the IEC 60559:1989 (IEEE 754) standard for binary floating-point arithmetic.

Single provides methods to compare instances of this type, convert the value of an instance to its string representation, and convert the string representation of a number to an instance of this type.

For information about how format specification codes control the string representation of value types, see Formatting Overview.This type implements interfaces IComparable, IFormattable, and IConvertible. Use the Convert class for conversions instead of this type's explicit interface member implementation of IConvertible.

When performing binary operations, if one of the operands is a floating-point type, Single or Double, then the other operand is required to be an integral type or a floating-point type. The operation is evaluated as follows:

  • If one of the operands is of an integral type, then that operand is converted to the floating-point type of the other operand.
  • Then, if either of the operands is Double, the other operand is converted to Double, and the operation is performed using at least the range and precision of the Double. For numeric operations, the type of the result is Double.
  • Otherwise, the operation is performed using at least the range and precision of the Single type and, for numeric operations, the type of the result is Single.

The floating-point operators, including the assignment operators, do not throw exceptions. Instead, in exceptional situations, the result of a floating-point operation is zero, infinity, or NaN, as described below:

  • If the result of a floating-point operation is too small for the destination format, the result of the operation is zero.
  • If the magnitude of the result of a floating-point operation is too large for the destination format, the result of the operation is PositiveInfinity or NegativeInfinity, as appropriate for the sign of the result.
  • If a floating-point operation is invalid, the result of the operation is NaN.
  • If one or both operands of a floating-point operation are NaN, the result of the operation is NaN.

Requirements

Namespace: System

Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, .NET Compact Framework

Assembly: Mscorlib (in Mscorlib.dll)

See Also

Single Members | System Namespace

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