CHARSHL()
Process each character in a string with bitwise SHIFT LEFT operation
- Syntax
-
- CHARSHL (<[@]cString>, <nBitsToSHL> ) --> cSHLString
- Arguments
-
- <[@]cString> string to be processed <nBitsToSHL> number of bit positions to be shifted to the left
- Returns
-
- <cSHLString> string with bitwise shifted left characters
- Description
-
- The CHARSHL() function constructs a new string from the string passed as parameter. To do this, it performs a bitwise SHIFT LEFT (SHL) operation to the characters of the string and places a character in the resulting string whose ASCII value equals to the result of that operation. Be aware that bits shifted out of the byte are lost. If you need a bit rotation, use the CHARRLL() function instead. If the string is passed by reference, the resulting string is stored in <cString>, too. By setting the CSETREF()-switch to .T., the return value can be omitted.
Examples
? charshl (chr(1)+chr(2)+chr(4)+chr(8)+chr(16)+chr(32)+chr(64)+chr(128), 3)
--> chr(8)+chr(16)+chr(32)+chr(64)+chr(128)+chr(0)+chr(0)+chr(0)
Tests
charshl (chr(1)+chr(2)+chr(4)+chr(8)+chr(16)+chr(32)+chr(64)+chr(128), 3) == chr(8)+chr(16)+chr(32)+chr(64)+chr(128)+chr(0)+chr(0)+chr(0)
- Status
- Ready
- Compliance
-
- CHARSHL() is a new function that is only available in Harbour's CT3 lib.
- Platforms
-
- All
- Files
-
- Source is charop.c, library is ct3.
- See Also