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This commit is contained in:
Bassem Girgis
2018-12-20 17:34:07 -06:00
parent 7a2d899662
commit 81b4b9e273
34743 changed files with 5940233 additions and 0 deletions
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22
winx64/bin/swig-3.0.12/Examples/ruby/constants/Makefile Normal file
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TOP = ../..
SWIGEXE = $(TOP)/../swig
SWIG_LIB_DIR = $(TOP)/../$(TOP_BUILDDIR_TO_TOP_SRCDIR)Lib
SRCS =
TARGET = example
INTERFACE = example.i
check: build
$(MAKE) -f $(TOP)/Makefile SRCDIR='$(SRCDIR)' ruby_run
build:
$(MAKE) -f $(TOP)/Makefile SRCDIR='$(SRCDIR)' SRCS='$(SRCS)' \
SWIG_LIB_DIR='$(SWIG_LIB_DIR)' SWIGEXE='$(SWIGEXE)' \
TARGET='$(TARGET)' INTERFACE='$(INTERFACE)' ruby
static:
$(MAKE) -f $(TOP)/Makefile SRCDIR='$(SRCDIR)' SRCS='$(SRCS)' \
SWIG_LIB_DIR='$(SWIG_LIB_DIR)' SWIGEXE='$(SWIGEXE)' \
TARGET='myruby' INTERFACE='$(INTERFACE)' ruby_static
clean:
$(MAKE) -f $(TOP)/Makefile SRCDIR='$(SRCDIR)' ruby_clean

27
winx64/bin/swig-3.0.12/Examples/ruby/constants/example.i Normal file
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/* File : example.i */
%module example
/* A few preprocessor macros */
#define ICONST 42
#define FCONST 2.1828
#define CCONST 'x'
#define CCONST2 '\n'
#define SCONST "Hello World"
#define SCONST2 "\"Hello World\""
/* This should work just fine */
#define EXPR ICONST + 3*(FCONST)
/* This shouldn't do anything */
#define EXTERN extern
/* Neither should this (BAR isn't defined) */
#define FOO (ICONST + BAR)
/* The following directives also produce constants */
%constant int Iconst = 37;
%constant double Fconst = 3.14;

64
winx64/bin/swig-3.0.12/Examples/ruby/constants/index.html Normal file
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<html>
<head>
<title>SWIG:Examples:ruby:constants</title>
</head>
<body bgcolor="#ffffff">
<tt>SWIG/Examples/ruby/constants/</tt>
<hr>
<H2>Wrapping C Constants</H2>
<p>
When SWIG encounters C preprocessor macros and C declarations that look like constants,
it creates Ruby constants with an identical value. Click <a href="example.i">here</a>
to see a SWIG interface with some constant declarations in it.
<h2>Accessing Constants from Ruby</h2>
Click <a href="run.rb">here</a> to see a script that prints out the values
of the constants contained in the above file.
<h2>Key points</h2>
<ul>
<li>The values of preprocessor macros are converted into Ruby constants.
<li>Types are inferred by syntax (e.g., "3" is an integer and "3.5" is a float).
<li>Character constants such as 'x' are converted into Ruby strings.
<li>C string literals such as "Hello World" are converted into Ruby strings.
<li>Macros that are not fully defined are simply ignored. For example:
<blockquote>
<pre>
#define EXTERN extern
</pre>
</blockquote>
is ignored because SWIG has no idea what type of variable this would be.
<p>
<li>Expressions are allowed provided that all of their components are defined. Otherwise, the constant is ignored.
<li>Certain C declarations involving 'const' are also turned into Ruby constants.
<li>Constants that begin with lower case character are automatically capitalized.
For example:
<blockquote>
<pre>
const int iconst = 37;
</pre>
</blockquote>
is capitalized as <tt>Example::Iconst</tt> because Ruby constants name must begin
with upper case character.
<li>The constants that appear in a SWIG interface file do not have to appear in any sort
of matching C source file since the creation of a constant does not require linkage
to a stored value (i.e., a value held in a C global variable or memory location).
</ul>
<hr>
</body>
</html>

25
winx64/bin/swig-3.0.12/Examples/ruby/constants/runme.rb Normal file
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# file: runme.rb
require 'example'
print "ICONST = ", Example::ICONST, " (should be 42)\n"
print "FCONST = ", Example::FCONST, " (should be 2.1828)\n"
print "CCONST = ", Example::CCONST, " (should be 'x')\n"
print "CCONST2 = ", Example::CCONST2, " (this should be on a new line)\n"
print "SCONST = ", Example::SCONST, " (should be 'Hello World')\n"
print "SCONST2 = ", Example::SCONST2, " (should be '\"Hello World\"')\n"
print "EXPR = ", Example::EXPR, " (should be 48.5484)\n"
print "iconst = ", Example::Iconst, " (should be 37)\n"
print "fconst = ", Example::Fconst, " (should be 3.14)\n"
begin
print "EXTERN = ", Example::EXTERN, " (Arg! This shouldn't print anything)\n"
rescue NameError
print "EXTERN isn't defined (good)\n"
end
begin
print "FOO = ", Example::FOO, " (Arg! This shouldn't print anything)\n"
rescue NameError
print "FOO isn't defined (good)\n"
end