real-positive-or-zero -- r7rs Type

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Sub-types tree

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• real-positive:
  • real-positive-not-inf:
    • rational-positive:
      • ...
• real-positive-or-zero-not-inf:
  • real-zero:
    • rational-zero:
      • ...
  • real-positive-not-inf:
    • rational-positive:
      • ...
  • rational-positive-or-zero:
    • rational-zero:
      • ...
    • rational-positive:
      • ...
    • integer-positive-or-zero:
      • ...

Super-types

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• number-positive-or-zero;
• real-not-nan;

Super-types recursive

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• number-not-nan;
• number;
• complex-not-nan;
• complex;
• real;

Sub-types

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• real-positive;
• real-positive-or-zero-not-inf;

Sub-types recursive

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• real-zero;
• rational-zero;
• integer-zero;
• exact-integer-zero;
• real-positive-not-inf;
• rational-positive;
• integer-positive;
• exact-integer-positive;
• rational-positive-or-zero;
• integer-positive-or-zero;
• exact-integer-positive-or-zero;
• code-point-unicode;
• code-point-ascii;
• range-value;
• range-offset;
• range-start;
• range-end;
• range-length;
• range-length-zero;
• range-length-not-zero;
• byte;
• byte-ascii;

Referent definitions as output

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• square;
• exp;

Referent definitions as output (recursive)

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• abs;
• imag-part;
• angle;
• sqrt;
• numerator;
• exact-integer-sqrt;
• denominator;
• magnitude;
• digit-value;
• char->integer;
• length;
• vector-length;
• string-length;
• bytevector-length;
• bytevector-u8-ref;
• bytevector-u8-set!;

Note: These definitions produce an output that is a sub-type.

Predicate

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(lambda (value) (and (real? value) (or (positive? value) (zero? value))))

Categories

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• types-numbers;

Categories recursive

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• types;