BIN2I()
Convert signed short encoded bytes into Harbour numeric
- Syntax
- BIN2I( <cBuffer> ) --> nNumber
- Arguments
- <cBuffer> is a character string that contain 16 bit encoded signed short integer (least significant byte first). The first two bytes are taken into account, the rest if any are ignored.
- Returns
- BIN2I() return numeric integer (or 0 if <cBuffer> is not a string).
- Description
- BIN2I() is one of the low level binary conversion functions, those functions convert between Harbour numeric and a character representation of numeric value. BIN2I() take two bytes of encoded 16 bit signed short integer and convert it into standard Harbour numeric value.
- You might ask what is the need for such functions, well, first of all it allow you to read/write information from/to a binary file (like extracting information from DBF header), it is also a useful way to share information from source other than Harbour (C for instance).
- BIN2I() is the opposite of I2BIN()
- Examples
- // Show DBF last update date
- FUNCTION main()
- LOCAL nHandle, cYear, cMonth, cDay
- nHandle := fopen( "test.dbf" )
- IF nHandle > 0
- fseek( nHandle, 1 )
- cYear := cMonth := cDay := " "
- fread( nHandle, @cYear , 1 )
- fread( nHandle, @cMonth, 1 )
- fread( nHandle, @cDay , 1 )
- ? "Last update:", BIN2I( cYear ), BIN2I( cMonth ), BIN2I( cDay )
- fclose( nHandle )
- ELSE
- ? "Can not open file"
- ENDIF
- RETURN NIL
- Status
Ready
- Compliance
- BIN2I() works exactly like CA-Clipper's BIN2I()
- Files
- Library is rtl
- See Also