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Int64 Structure

July 28, 2014

Represents a 64-bit signed integer.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

public struct Int64 : IComparable, IComparable<long>, 
	IConvertible, IEquatable<long>, IFormattable

The Int64 type exposes the following members.

  NameDescription
Public methodCompareTo(Int64)Compares this instance to a specified 64-bit signed integer and returns an indication of their relative values.
Public methodCompareTo(Object)Compares this instance to a specified object and returns an indication of their relative values.
Public methodEquals(Int64)Returns a value indicating whether this instance is equal to a specified Int64 value.
Public methodEquals(Object)Returns a value indicating whether this instance is equal to a specified object. (Overrides ValueType.Equals(Object).)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeReturns the hash code for this instance. (Overrides ValueType.GetHashCode().)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodGetTypeCodeReturns the TypeCode for value type Int64.
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodStatic memberParse(String)Converts the string representation of a number to its 64-bit signed integer equivalent.
Public methodStatic memberParse(String, NumberStyles)Converts the string representation of a number in a specified style to its 64-bit signed integer equivalent.
Public methodStatic memberParse(String, IFormatProvider)Converts the string representation of a number in a specified culture-specific format to its 64-bit signed integer equivalent.
Public methodStatic memberParse(String, NumberStyles, IFormatProvider)Converts the string representation of a number in a specified style and culture-specific format to its 64-bit signed integer equivalent.
Public methodToString()Converts the numeric value of this instance to its equivalent string representation. (Overrides ValueType.ToString().)
Public methodToString(IFormatProvider)Converts the numeric value of this instance to its equivalent string representation using the specified culture-specific format information.
Public methodToString(String)Converts the numeric value of this instance to its equivalent string representation, using the specified format.
Public methodToString(String, IFormatProvider)Converts the numeric value of this instance to its equivalent string representation using the specified format and culture-specific format information.
Public methodStatic memberTryParse(String, Int64)Converts the string representation of a number to its 64-bit signed integer equivalent. A return value indicates whether the conversion succeeded or failed.
Public methodStatic memberTryParse(String, NumberStyles, IFormatProvider, Int64)Converts the string representation of a number in a specified style and culture-specific format to its 64-bit signed integer equivalent. A return value indicates whether the conversion succeeded or failed.
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  NameDescription
Public fieldStatic memberMaxValueRepresents the largest possible value of an Int64. This field is constant.
Public fieldStatic memberMinValueRepresents the smallest possible value of an Int64. This field is constant.
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  NameDescription
Explicit interface implemetationPrivate methodIConvertible.ToBooleanInfrastructure. For a description of this member, see IConvertible.ToBoolean.
Explicit interface implemetationPrivate methodIConvertible.ToByteInfrastructure. For a description of this member, see IConvertible.ToByte.
Explicit interface implemetationPrivate methodIConvertible.ToCharInfrastructure. For a description of this member, see IConvertible.ToChar.
Explicit interface implemetationPrivate methodIConvertible.ToDateTimeInfrastructure. This conversion is not supported. Attempting to use this method throws an InvalidCastException.
Explicit interface implemetationPrivate methodIConvertible.ToDecimalInfrastructure. For a description of this member, see IConvertible.ToDecimal.
Explicit interface implemetationPrivate methodIConvertible.ToDoubleInfrastructure. For a description of this member, see IConvertible.ToDouble.
Explicit interface implemetationPrivate methodIConvertible.ToInt16Infrastructure. For a description of this member, see IConvertible.ToInt16.
Explicit interface implemetationPrivate methodIConvertible.ToInt32Infrastructure. For a description of this member, see IConvertible.ToInt32.
Explicit interface implemetationPrivate methodIConvertible.ToInt64Infrastructure. For a description of this member, see IConvertible.ToInt64.
Explicit interface implemetationPrivate methodIConvertible.ToSByteInfrastructure. For a description of this member, see IConvertible.ToSByte.
Explicit interface implemetationPrivate methodIConvertible.ToSingleInfrastructure. For a description of this member, see IConvertible.ToSingle.
Explicit interface implemetationPrivate methodIConvertible.ToTypeInfrastructure. For a description of this member, see IConvertible.ToType.
Explicit interface implemetationPrivate methodIConvertible.ToUInt16Infrastructure. For a description of this member, see IConvertible.ToUInt16.
Explicit interface implemetationPrivate methodIConvertible.ToUInt32Infrastructure. For a description of this member, see IConvertible.ToUInt32.
Explicit interface implemetationPrivate methodIConvertible.ToUInt64Infrastructure. For a description of this member, see IConvertible.ToUInt64.
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The Int64 value type represents integers with values ranging from negative 9,223,372,036,854,775,808 through positive 9,223,372,036,854,775,807.

Int64 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.

This type implements interfaces IComparable, IComparable<T>, IFormattable, and IConvertible. Use the Convert class for conversions instead of this type's explicit interface member implementation of IConvertible.

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

All members of this type are thread safe. Members that appear to modify instance state actually return a new instance initialized with the new value. As with any other type, reading and writing to a shared variable that contains an instance of this type must be protected by a lock to guarantee thread safety.

Caution noteCaution:

Assigning an instance of this type is not thread safe on all hardware platforms because the binary representation of that instance might be too large to assign in a single atomic operation.

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