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Diffstat (limited to 'Examples/d/funcptr/d2/runme.d')
-rw-r--r-- | Examples/d/funcptr/d2/runme.d | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/Examples/d/funcptr/d2/runme.d b/Examples/d/funcptr/d2/runme.d new file mode 100644 index 000000000..929911d6c --- /dev/null +++ b/Examples/d/funcptr/d2/runme.d @@ -0,0 +1,34 @@ +module runme; + +import std.stdio; +static import example; + +extern(C) int add(int a, int b) { + return a + b; +} + +extern(C) int sub(int a, int b) { + return a - b; +} + +extern(C) int mul(int a, int b) { + return a * b; +} + +void main() { + int a = 37; + int b = 42; + + writefln( "a = %s", a ); + writefln( "b = %s", b ); + + writeln( "Trying some C callback functions:" ); + writefln( " ADD(a,b) = %s", example.do_op( a, b, example.ADD ) ); + writefln( " SUB(a,b) = %s", example.do_op( a, b, example.SUB ) ); + writefln( " MUL(a,b) = %s", example.do_op( a, b, example.MUL ) ); + + writeln( "Now the same with callback functions defined in D:" ); + writefln( " add(a,b) = %s", example.do_op( a, b, &add ) ); + writefln( " sub(a,b) = %s", example.do_op( a, b, &sub ) ); + writefln( " mul(a,b) = %s", example.do_op( a, b, &mul ) ); +} |