Initial commit

winx64/bin/swig-3.0.12/Examples/go/constants/Makefile

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+TOP        = ../..
+SWIGEXE    = $(TOP)/../swig
+SWIG_LIB_DIR = $(TOP)/../$(TOP_BUILDDIR_TO_TOP_SRCDIR)Lib
+CXXSRCS    =
+TARGET     = example
+INTERFACE  = example.i
+SWIGOPT    =
+
+check: build
+	$(MAKE) -f $(TOP)/Makefile SRCDIR='$(SRCDIR)' CXXSRCS='$(CXXSRCS)' TARGET='$(TARGET)' INTERFACE='$(INTERFACE)' go_run
+
+build:
+	$(MAKE) -f $(TOP)/Makefile SRCDIR='$(SRCDIR)' CXXSRCS='$(CXXSRCS)' \
+	SWIG_LIB_DIR='$(SWIG_LIB_DIR)' SWIGEXE='$(SWIGEXE)' \
+	SWIGOPT='$(SWIGOPT)' TARGET='$(TARGET)' INTERFACE='$(INTERFACE)' go
+
+clean:
+	$(MAKE) -f $(TOP)/Makefile SRCDIR='$(SRCDIR)' INTERFACE='$(INTERFACE)' go_clean

winx64/bin/swig-3.0.12/Examples/go/constants/example.i

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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;

winx64/bin/swig-3.0.12/Examples/go/constants/index.html

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+<html>
+<head>
+<title>SWIG:Examples:go:constants</title>
+</head>
+
+<body bgcolor="#ffffff">
+
+<tt>SWIG/Examples/go/constants/</tt>
+<hr>
+
+<H2>Wrapping C Constants</H2>
+
+<p>
+When SWIG encounters C preprocessor macros and C declarations that
+look like constants, it creates a Go constant 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 Go</h2>
+Click <a href="../../../Doc/Manual/Go.html#go_constants">here</a> for
+the section on constants in the SWIG and Go documentation.
+<p>
+
+Click <a href="runme.go">here</a> to see a Go program that prints out
+the values of the constants contained in the above file.</p>
+<h2>Key points</h2>
+<ul>
+<li>All names are capitalized to make them visible.
+<li>The values of preprocessor macros are converted into Go constants.
+<li>C string literals such as "Hello World" are converted into Go 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 Go
+constants.
+<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>

winx64/bin/swig-3.0.12/Examples/go/constants/runme.go

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+package main
+
+import (
+	"./example"
+	"fmt"
+)
+
+func main() {
+	fmt.Println("ICONST  = ", example.ICONST, " (should be 42)")
+	fmt.Println("FCONST  = ", example.FCONST, " (should be 2.1828)")
+	fmt.Printf("CCONST  = %c (should be 'x')\n", example.CCONST)
+	fmt.Printf("CCONST2 = %c(this should be on a new line)\n", example.CCONST2)
+	fmt.Println("SCONST  = ", example.SCONST, " (should be 'Hello World')")
+	fmt.Println("SCONST2 = ", example.SCONST2, " (should be '\"Hello World\"')")
+	fmt.Println("EXPR    = ", example.EXPR, " (should be 48.5484)")
+	fmt.Println("iconst  = ", example.Iconst, " (should be 37)")
+	fmt.Println("fconst  = ", example.Fconst, " (should be 3.14)")
+}