a344899ed8
git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@12361 626c5289-ae23-0410-ae9c-e8d60b6d4f22
42 lines
1.3 KiB
D
42 lines
1.3 KiB
D
module runme;
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import tango.io.Stdout;
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static import example;
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extern(C) int add(int a, int b) {
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return a + b;
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}
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extern(C) int sub(int a, int b) {
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return a - b;
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}
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extern(C) int mul(int a, int b) {
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return a * b;
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}
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void main() {
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int a = 37;
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int b = 42;
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Stdout( "a = " )( a ).newline;
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Stdout( "b = " )( b ).newline;
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Stdout( "Trying some C callback functions:" ).newline;
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Stdout( " ADD(a,b) = " )( example.do_op( a, b, example.ADD ) ).newline;
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Stdout( " SUB(a,b) = " )( example.do_op( a, b, example.SUB ) ).newline;
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Stdout( " MUL(a,b) = " )( example.do_op( a, b, example.MUL ) ).newline;
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version (LDC) {
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// Currently, there is no way to specify the calling convention for
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// function pointer parameters in D, but LDC does strict typechecking for
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// them (which is reasonable, but not covered by the language spec yet).
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// As a result, there is no way to make the code below compile with LDC at
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// the moment, so just skip it.
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} else {
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Stdout( "Now the same with callback functions defined in D:" ).newline;
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Stdout( " add(a,b) = " )( example.do_op( a, b, &add ) ).newline;
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Stdout( " sub(a,b) = " )( example.do_op( a, b, &sub ) ).newline;
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Stdout( " mul(a,b) = " )( example.do_op( a, b, &mul ) ).newline;
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}
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}
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