kotovalexarian-likes-github/ruby--ruby
1
0
Fork 0
mirror of https://github.com/ruby/ruby.git synced 2022-11-09 12:17:21 -05:00
Code Releases Activity

Correct.

Browse source 
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@2374 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
ttate 2002-04-14 17:19:44 +00:00
parent 66484faf1b
commit cb944528b6
1 changed files with 8 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
ext/dl/doc/dl.txt
View file

@ -17,8 +17,8 @@ and LoadLibrary() on Windows.
= Using Ruby/DL = Using Ruby/DL
We should usually use DL::Importable module provided by dl/import.rb. We should usually use DL::Importable module provided by "dl/import.rb".
It has high-level functions to access to library functions. We use It has high-level functions to access library functions. We use
DL::Importable module to extend a module as follows: DL::Importable module to extend a module as follows:
require "dl/import" require "dl/import"
@ -26,22 +26,22 @@ DL::Importable module to extend a module as follows:
extend DL::Importable extend DL::Importable
end end
Now we can use methods dlload() and extern() in this module. We load the Now we can use methods dlload and extern in this module. We load the
libraries using dlload(), and define wrapper methods to library functions libraries using dlload, and define wrapper methods to library functions
using extern() respectively as follows: using extern respectively as follows:
module LIBC module LIBC
extend DL::Importable extend DL::Importable
dlload "libc.so.6","libm.so.6" dlload "libc.so.6","libm.so.6"
extern "int strlen(char*)" extern "int strlen(char*)"
end end
# Note that we should not include the module LIBC from some reason.
Note that we should not include the module LIBC from some reason. We can call the library function strlen() using LIBC.strlen. If the first
We can call the library function strlen() using LIBC.strlen(). If the first
character of given function name is an uppercase, the first character of the character of given function name is an uppercase, the first character of the
defined method name becomes lowercase. defined method name becomes lowercase.
We can also construct memory images of structures and unions using functions We can also construct memory images of structures and unions using functions
struct and union which are defined in dl/struct.rb as follows: struct and union which are defined in "dl/struct.rb" as follows:
require "dl/import" require "dl/import"
require "dl/struct" require "dl/struct"