63 lines
1.0 KiB
C#
63 lines
1.0 KiB
C#
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//
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// Lambda expression test, basics.
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//
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using System;
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delegate int IntFunc (int x);
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delegate void VoidFunc (int x);
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class X {
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static IntFunc func, increment;
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static VoidFunc nothing;
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public static int Main ()
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{
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int y = 0;
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int r;
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//
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// The following tests body-style lambda
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//
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increment = (int x) => { return x + 1; };
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r = increment (4);
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Console.WriteLine ("Should be 5={0}", r);
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if (r != 5)
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return 1;
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//
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// This tests the body of a lambda being an expression
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//
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func = (int x) => x + 1;
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r = func (10);
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Console.WriteLine ("Should be 11={0}", r);
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if (r != 11)
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return 2;
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//
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// The following tests that the body is a statement
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//
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nothing = (int x) => { y = x; };
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nothing (10);
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Console.WriteLine ("Should be 10={0}", y);
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if (y != 10)
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return 3;
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nothing = (int x) => { new X (x); };
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nothing (314);
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if (instantiated_value != 314)
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return 4;
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Console.WriteLine ("All tests pass");
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return 0;
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}
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static int instantiated_value;
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X (int v)
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{
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instantiated_value = v;
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}
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}
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