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Merge branch 'master' into dcn

db4
Slava Pestov 2009-07-27 04:54:58 -05:00
parent 31555b05cf f504ad2e43
commit ee00bf7a73
4 changed files with 10 additions and 10 deletions
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10
core/math/floats/floats-docs.factor
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@ -9,21 +9,21 @@ HELP: >float
{ $description "Converts a real to a float. This is the identity on floats, and performs a floating point division on rationals." } ;
HELP: bits>double ( n -- x )
{ $values { "n" "a 64-bit integer representing an 754 double-precision float" } { "x" float } }
{ $values { "n" "a 64-bit integer representing an IEEE 754 double-precision float" } { "x" float } }
{ $description "Creates a " { $link float } " object from a binary representation. This word is usually used to reconstruct floats read from streams." } ;
{ bits>double bits>float double>bits float>bits } related-words
HELP: bits>float ( n -- x )
{ $values { "n" "a 32-bit integer representing an 754 single-precision float" } { "x" float } }
{ $values { "n" "a 32-bit integer representing an IEEE 754 single-precision float" } { "x" float } }
{ $description "Creates a " { $link float } " object from a binary representation. This word is usually used to reconstruct floats read from streams." } ;
HELP: double>bits ( x -- n )
{ $values { "x" float } { "n" "a 64-bit integer representing an 754 double-precision float" } }
{ $values { "x" float } { "n" "a 64-bit integer representing an IEEE 754 double-precision float" } }
{ $description "Creates a " { $link float } " object from a binary representation. This word is usually used to reconstruct floats read from streams." } ;
HELP: float>bits ( x -- n )
{ $values { "x" float } { "n" "a 32-bit integer representing an 754 single-precision float" } }
{ $values { "x" float } { "n" "a 32-bit integer representing an IEEE 754 single-precision float" } }
{ $description "Creates a " { $link float } " object from a binary representation. This word is usually used to reconstruct floats read from streams." } ;
! Unsafe primitives
@ -74,7 +74,7 @@ HELP: float>= ( x y -- ? )
ARTICLE: "floats" "Floats"
{ $subsection float }
"Rational numbers represent " { $emphasis "exact" } " quantities. On the other hand, a floating point number is an " { $emphasis "approximation" } ". While rationals can grow to any required precision, floating point numbers are fixed-width, and manipulating them is usually faster than manipulating ratios or bignums (but slower than manipulating fixnums). Floating point numbers are often used to represent irrational numbers, which have no exact representation as a ratio of two integers."
"Rational numbers represent " { $emphasis "exact" } " quantities. On the other hand, a floating point number is an " { $emphasis "approximate" } " value. While rationals can grow to any required precision, floating point numbers have limited precision, and manipulating them is usually faster than manipulating ratios or bignums."
$nl
"Introducing a floating point number in a computation forces the result to be expressed in floating point."
{ $example "5/4 1/2 + ." "1+3/4" }

4
core/math/math-docs.factor
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@ -289,11 +289,11 @@ HELP: <fp-nan>
HELP: next-float
{ $values { "m" float } { "n" float } }
{ $description "Returns the least representable " { $link float } " value greater than " { $snippet "m" } "." } ;
{ $description "Returns the least representable " { $link float } " value greater than " { $snippet "m" } ", or in the case of " { $snippet "-0.0" } ", returns " { $snippet "+0.0" } "." } ;
HELP: prev-float
{ $values { "m" float } { "n" float } }
{ $description "Returns the greatest representable " { $link float } " value less than " { $snippet "m" } "." } ;
{ $description "Returns the greatest representable " { $link float } " value less than " { $snippet "m" } ", or in the case of " { $snippet "+0.0" } ", returns " { $snippet "-0.0" } "." } ;
{ next-float prev-float } related-words

4
extra/alien/cxx/syntax/syntax-tests.factor
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@ -40,7 +40,7 @@ COMPILE-AS-C++
C-INCLUDE: <cstring>
RAW-C:
<RAW-C
class alpha {
public:
alpha(const char* s) {
@ -68,7 +68,7 @@ class beta : alpha {
return str + 2;
};
};
;
RAW-C>
C++-CLASS: alpha c++-root
C++-CLASS: beta alpha

2
extra/alien/marshall/marshall-docs.factor
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@ -604,7 +604,7 @@ ARTICLE: "alien.marshall" "C marshalling"
"Wrap an alien:" { $subsection alien-wrapper }
"Wrap a struct:" { $subsection struct-wrapper }
"Get the marshaller for a C type:" { $subsection marshaller }
"Get the unmarshaller for a C type:" { $subsection marshaller }
"Get the unmarshaller for a C type:" { $subsection unmarshaller }
"Get the unmarshaller for an output parameter:" { $subsection out-arg-unmarshaller }
"Get the unmarshaller for a struct field:" { $subsection struct-field-unmarshaller }
$nl