12.1.1.6 Byte Operations on Integers

The byte-manipulation functions use objects called byte specifiers to designate the size and position of a specific byte within an integer. The representation of a byte specifier is implementation-dependent; it might or might not be a number. The function byte will construct a byte specifier, which various other byte-manipulation functions will accept.

Figure 12–6 shows defined names relating to manipulating bytes of numbers.

  byte           deposit-field  ldb-test    
  byte-position  dpb            mask-field  
  byte-size      ldb                        

  Figure 12–6: Defined names relating to byte manipulation.