diff options
Diffstat (limited to 'src/algebra/data.spad.pamphlet')
| -rw-r--r-- | src/algebra/data.spad.pamphlet | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/src/algebra/data.spad.pamphlet b/src/algebra/data.spad.pamphlet index 43a3b07d..eb69372a 100644 --- a/src/algebra/data.spad.pamphlet +++ b/src/algebra/data.spad.pamphlet @@ -33,11 +33,11 @@ Byte(): Public == Private where ++ bitand(x,y) returns the bitwise `and' of `x' and `y'. bitior: (%,%) -> % ++ bitor(x,y) returns the bitwise `inclusive or' of `x' and `y'. - sample: () -> % - ++ sample() returns a sample datum of type Byte. + sample: % + ++ \spad{sample} gives a sample datum of type Byte. Private == SubDomain(NonNegativeInteger, #1 < 256) add byte(x: NonNegativeInteger): % == per x - sample() = 0$Lisp + sample = 0$Lisp coerce(c: Character) == per ord c coerce(x: %): Character == char rep x x = y == byteEqual(x,y)$Lisp @@ -91,8 +91,10 @@ ByteOrder(): Public == Private where ++ for system programming tasks, i.e. interfacting with the hosting ++ operating system, reading/writing external binary format files. SystemInteger(N: PositiveInteger): Public == Private where - Public == OrderedFinite + Public == OrderedFinite with + sample: % ++ \spad{sample} gives a sample datum of this type. Private == SubDomain(Integer, length #1 <= N) add + sample == per(0@Integer) min == per(-shift(1,N-1)) max == per(shift(1,N-1)-1) size() == (rep max - rep min + 1)::NonNegativeInteger @@ -159,12 +161,12 @@ SystemNonNegativeInteger(N: PositiveInteger): Public == Private where ++ bitand(x,y) returns the bitwise `and' of `x' and `y'. bitior: (%,%) -> % ++ bitor(x,y) returns the bitwise `inclusive or' of `x' and `y'. - sample: () -> % - ++ sample() returns a sample datum of type Byte. + sample: % + ++ \spad{sample} gives a sample datum of type Byte. Private == SubDomain(NonNegativeInteger, length #1 <= N) add min == per 0 max == per((shift(1,N)-1)::NonNegativeInteger) - sample() == min + sample == min bitand(x,y) == BOOLE(BOOLE_-AND$Lisp,x,y)$Lisp bitior(x,y) == BOOLE(BOOLE_-IOR$Lisp,x,y)$Lisp |