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#### 15.1.2.2 Required Kinds of Specialized Arrays

Vectors whose elements are restricted to type

character or a subtype of character

are called strings . Strings are of type string. Figure 15–2 lists some defined names related to strings.

Strings are specialized arrays and might logically have been included in this chapter. However, for purposes of readability most information about strings does not appear in this chapter; see instead Strings.

      char                string-equal         string-upcase
      make-string         string-greaterp      string/=
      nstring-capitalize  string-left-trim     string<
      nstring-downcase    string-lessp         string<=
      nstring-upcase      string-not-equal     string=
      schar               string-not-greaterp  string>
      string              string-not-lessp     string>=
      string-capitalize   string-right-trim
      string-downcase     string-trim

          Figure 15–2: Operators that Manipulate Strings

Vectors whose elements are restricted to type bit are called bit vectors . Bit vectors are of type bit-vector. Figure 15–3 lists some defined names for operations on bit arrays.

      bit        bit-ior   bit-orc2
      bit-and    bit-nand  bit-xor
      bit-andc1  bit-nor   sbit
      bit-andc2  bit-not
      bit-eqv    bit-orc1

      Figure 15–3: Operators that Manipulate Bit Arrays