BABAR C++ Course Running the Examples - HEPHY

CharactersBitwise OperatorsC/C++ only has single byte charactersConstants of type char use single quotesUse escape sequence for unprintable characters andspecial cases• ’\n’ for new line• ’\’’ for single quote• ’\”’ for double quotes• ’\?’ for question markchar a = ’a’;char aa = ’A’;• ’\ddd’ for octal number• ’\xddd’ for hexadecimalBoth Fortran and C/C++ have bitwise operatorsFortran Purpose C/C++NOT(I) complement ~iIAND(I,J) and i&jIEOR(I,J) exclusive or i^jIOR(I,J) inclusive or i|jISHFT(I,N) shift left in• can be used on any integer type(char, short, int, etc.)• most often used for on-line DAQ and trigger• also used for unpacking compressed dataBABAR C++ Course 15 Paul F. KunzBABAR C++ Course 16 Paul F. Kunz