# WriteFloat (filehandle/stream, myFloat)

# Parameters

filehandle/stream = a valid variable set with the OpenFile, WriteFile command, or OpenTCPStream (v1.52+) myFloat = a floating point variable

# Description

Once you've opened a disk file (or stream) for writing, use this command to write a single floating point number to the file. Note, each value written uses 4 bytes. Streams can only be used in Blitz Basic v1.52 or greater.

# Example

; Reading and writing a file using ReadFloat and WriteFloat functions
; Initialise some variables for the example
Num1# = 10.5 ; store 10.5
Num2# = 365.25 ; store 365.25
Num3# = 32767.123 ; 32767.123 is the largest positive Short Integer Value in BlitzBasic )
Num4# = -32768.123 ; -32768.123 the largest negative Short Integer Value in BlitzBasic )
; Open a file to write to
fileout = WriteFile("mydata.dat")
; Write the information to the file
WriteFloat( fileout, Num1 )
WriteFloat( fileout, Num2 )
WriteFloat( fileout, Num3 )
WriteFloat( fileout, Num4 )
; Close the file
CloseFile( fileout )
; Open the file to Read
filein = ReadFile("mydata.dat")
Read1# = ReadFloat( filein )
Read2# = ReadFloat( filein )
Read3# = ReadFloat( filein )
Read4# = ReadFloat( filein )
; Close the file once reading is finished
CloseFile( filein )
Print "Floating Point Data Read From File - mydata.dat "
Print Read1
Print Read2
Print Read3
Print Read4
WaitKey()

Index
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