OpCodes.Ldelem_R8 Field

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Loads the element with type float64 at a specified array index onto the top of the evaluation stack as type F (float).

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

Syntax

Public Shared ReadOnly Ldelem_R8 As OpCode
public static readonly OpCode Ldelem_R8

Remarks

The following table lists the instruction's hexadecimal and Microsoft intermediate language (MSIL) assembly format, along with a brief reference summary:

Format

Assembly Format

Description

99

ldelem.r8

Loads the element with type float64 at index onto the top of the stack as type F.

The stack transitional behavior, in sequential order, is:

  1. An object reference array is pushed onto the stack.

  2. An index value index is pushed onto the stack.

  3. index and array are popped from the stack; the value stored at position index in array is looked up.

  4. The value is pushed onto the stack.

The ldelem.r8 instruction loads the value of the element with index index (type native int) in the zero-based one-dimensional array array and places it on the top of the stack. Arrays are objects and hence represented by a value of type O.

The return value for ldelem.r8 is float64.

Floating-point values are converted to type F when loaded onto the evaluation stack.

NullReferenceException is thrown if array is a null reference.

ArrayTypeMismatchException is thrown if array does not hold elements of the required type.

IndexOutOfRangeException is thrown if index is negative, or larger than the bound of array.

The following Emit method overload can use the ldelem.r8 opcode:

  • ILGenerator.Emit(OpCode)

Version Information

Windows Phone OS

Supported in: 8.1, 8.0, 7.1

Platforms

Windows Phone

See Also

Reference

OpCodes Class

System.Reflection.Emit Namespace