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Mikael Djurfeldt 1999-09-16 00:34:21 +00:00
parent 26405bc156
commit 86a4d62e37
1 changed files with 7 additions and 4 deletions
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11
NEWS
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@ -192,6 +192,9 @@ primitive
enable-primitive-generic! PRIMITIVE ...
[This primitive will disappear again in Guile-1.4 when all primitives
will be primitive generics.]
It is then possible to extend the primitive(s) by defining methods for
them without loss of efficiency in normal evaluation.
@ -202,11 +205,11 @@ Example:
(define-method + ((x <string>) (y <string>))
(string-append x y))
+ will still be as efficient as usual in numerical calculations, but
can also be used for concatenating strings.
+ will still be as efficient as usual in numerical calculations, but
can also be used for concatenating strings.
Who will be the first one to extend Guile's numerical tower to
rationals? :)
Who will be the first one to extend Guile's numerical tower to
rationals? :)
*** New snarf macros for defining primitives: SCM_GPROC, SCM_GPROC1