SHLB - Buffer left shift

Language reference ›› Built-in functions ›› Buffer shifts ››
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SHLB(variable) NEW! (V2.0)


Shift left <variable> one bit position, introducing 0 to the LSB and returns a BOOLEAN that was the MSB value.


Restrictions:


<variable> may be any variable of type CHAR, BYTE, WORD, LONGWORD, SHORTINT, INTEGER, LONGINT, or an ARRAY of these types, or an ARRAY of BOOLEAN; in this last case, the number of elements must be multiple of 8.

<variable> cannot be a pointer or a RECORD field, nor located in EEPROM.



VAR
 TheBit: BOOLEAN;
 TheBuf: ARRAY[1..5] OF BYTE;
…
 // Shift out the buffer to the left
 TheBit := SHLB(TheBuff);
…