RAD Studio VCL Reference
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TReader.ReadDouble Method

Reads a double type floating point number from the reader object's stream and returns its value.

Pascal
function ReadDouble: Double;
C++
__fastcall Double ReadDouble();

ReadDouble is a helper method used by other reader methods to read a tagged double type floating-point data value at the current reader Position. ReadFloat first checks the value type (TValueType) by calling the ReadValue method. If the item is a vaDouble ReadDouble calls Read and returns the double value. Otherwise it calls ReadInteger

 

Position 

Read 

ReadInteger 

ReadValue 

TValueType

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