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C NAN and INFINITY parsing #14

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merged 2 commits into from
Aug 8, 2024
Merged

C NAN and INFINITY parsing #14

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96cbb5a
quaviver: add payload support to number parsing
yitzchak Aug 8, 2024
e78c6de
c: add nan and infinity literals
yitzchak Aug 8, 2024
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221 changes: 126 additions & 95 deletions code/c/implementation.lisp
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Original file line number Diff line number Diff line change
Expand Up @@ -58,108 +58,139 @@
(and (member (client-standard client) '(:c++23 :c++26))
t))

(defun nan-literals-p (client)
(and (member (client-standard client) '(:c99 :c11 :c17 :c23 :c++03 :c++11 :c++14
:c++17 :c++20 :c++23 :c++26))
t))

(quaviver:define-number-parser
(:client client :ratio nil :float-type 'double-float)
()
(:alternate? #\+
(:sequence #\-
(:set :sign -1)))
(:alternate (:sequence #\0
(:alternate (:sequence (:assert 'binary-integer-literals-p)
(:assert :integer t)
#\b
(:set :integral-base 2
:float nil)
(:digits :integral
:ignore 'digit-separators))
(:sequence #\x
(:set :integral-base 16
:fractional-base 16
:exponent-base 10
:base 2)
(:digits :integral
:ignore 'digit-separators)
(:sequence? (:assert 'hexadecimal-float-literals-p)
(:assert :float t)
#\.
(:set :integer nil)
(:digits? :fractional
(:alternate (:sequence (:assert 'nan-literals-p)
(:assert :float t)
"inf"
(:sequence? "inity")
(:set :code :infinity))
(:sequence (:assert 'nan-literals-p)
(:assert :float t)
"nan"
(:sequence? #\(
(:alternate (:sequence #\0
(:alternate (:sequence (:assert 'binary-integer-literals-p)
#\b
(:set :payload-base 2)
(:digits :payload
:ignore 'digit-separators))
(:sequence #\x
(:set :payload-base 16)
(:digits :payload
:ignore 'digit-separators))
(:sequence (:set :payload-base 8)
(:digits :payload
:ignore 'digit-separators))))
(:digits? :payload
:ignore 'digit-separators))
#\))
(:set :code :quiet-nan))
(:alternate (:sequence #\0
(:alternate (:sequence (:assert 'binary-integer-literals-p)
(:assert :integer t)
#\b
(:set :integral-base 2
:float nil)
(:digits :integral
:ignore 'digit-separators))
(:sequence? (:assert 'hexadecimal-float-literals-p)
(:assert :float t)
#\p
(:set :integer nil)
(:alternate? #\+
(:sequence #\-
(:set :exponent-sign -1)))
(:digits :exponent
:ignore 'digit-separators)))
(:sequence (:assert :integer t)
(:set :integral-base 8
:float nil)
(:digits :integral
:ignore 'digit-separators))))
(:sequence (:digits :integral
:leading-zeros nil
:ignore 'digit-separators)
(:sequence? (:assert :float t)
#\.
(:set :integer nil)
(:digits? :fractional
:ignore 'digit-separators))
(:sequence? (:assert :float t)
#\e
(:set :integer nil)
(:alternate? #\+
(:sequence #\-
(:set :exponent-sign -1)))
(:digits :exponent
:ignore 'digit-separators))
(:sequence? (:assert :integer t)
(:set :float nil))))
(:alternate? (:sequence (:assert :float t)
#\f
(:set :float-type 'single-float)
(:sequence? (:assert 'float-size-suffix-p)
(:alternate? (:sequence #\1
(:alternate (:sequence #\6
#+quaviver/short-float
(:set :float-type 'short-float))
(:sequence "28"
(:set :float-type
#+quaviver/long-float
'long-float
#-quaviver/long-float
'double-float))))
(:sequence "32")
(:sequence "64"
(:set :float-type 'double-float)))))
(:sequence (:assert :float t)
#\l
#+quaviver/long-float
(:set :float-type 'long-float))
(:sequence (:assert 'float-size-suffix-p)
(:assert :float t)
"bf16"
(:set :float-type
#+quaviver/short-float 'short-float
#-quaviver/short-float 'single-float))
(:sequence (:assert :integer t)
#\l
(:sequence? (:assert 'long-long-suffix-p)
#\l)
(:sequence? #\u))
(:sequence (:assert 'size-suffix-p)
(:assert :integer t)
#\z
(:sequence? #\u))
(:sequence (:assert :integer t)
#\u
(:alternate? (:sequence #\l
(:sequence? (:assert 'long-long-suffix-p)
#\l))
(:sequence (:assert 'size-suffix-p)
#\z)))))
(:sequence #\x
(:set :integral-base 16
:fractional-base 16
:exponent-base 10
:base 2)
(:digits :integral
:ignore 'digit-separators)
(:sequence? (:assert 'hexadecimal-float-literals-p)
(:assert :float t)
#\.
(:set :integer nil)
(:digits? :fractional
:ignore 'digit-separators))
(:sequence? (:assert 'hexadecimal-float-literals-p)
(:assert :float t)
#\p
(:set :integer nil)
(:alternate? #\+
(:sequence #\-
(:set :exponent-sign -1)))
(:digits :exponent
:ignore 'digit-separators)))
(:sequence (:assert :integer t)
(:set :integral-base 8
:float nil)
(:digits :integral
:ignore 'digit-separators))))
(:sequence (:digits :integral
:leading-zeros nil
:ignore 'digit-separators)
(:sequence? (:assert :float t)
#\.
(:set :integer nil)
(:digits? :fractional
:ignore 'digit-separators))
(:sequence? (:assert :float t)
#\e
(:set :integer nil)
(:alternate? #\+
(:sequence #\-
(:set :exponent-sign -1)))
(:digits :exponent
:ignore 'digit-separators))
(:sequence? (:assert :integer t)
(:set :float nil))))
(:alternate? (:sequence (:assert :float t)
#\f
(:set :float-type 'single-float)
(:sequence? (:assert 'float-size-suffix-p)
(:alternate? (:sequence #\1
(:alternate (:sequence #\6
#+quaviver/short-float
(:set :float-type 'short-float))
(:sequence "28"
(:set :float-type
#+quaviver/long-float
'long-float
#-quaviver/long-float
'double-float))))
(:sequence "32")
(:sequence "64"
(:set :float-type 'double-float)))))
(:sequence (:assert :float t)
#\l
#+quaviver/long-float
(:set :float-type 'long-float))
(:sequence (:assert 'float-size-suffix-p)
(:assert :float t)
"bf16"
(:set :float-type
#+quaviver/short-float 'short-float
#-quaviver/short-float 'single-float))
(:sequence (:assert :integer t)
#\l
(:sequence? (:assert 'long-long-suffix-p)
#\l)
(:sequence? #\u))
(:sequence (:assert 'size-suffix-p)
(:assert :integer t)
#\z
(:sequence? #\u))
(:sequence (:assert :integer t)
#\u
(:alternate? (:sequence #\l
(:sequence? (:assert 'long-long-suffix-p)
#\l))
(:sequence (:assert 'size-suffix-p)
#\z))))))

(defmethod quaviver:write-number ((client client) (base (eql 2)) (value integer) stream)
(unless (binary-integer-literals-p client)
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