Initial data commit

Task/Variable-size-Set/XPL0/variable-size-set.xpl0

@@ -0,0 +1,13 @@
+include c:\cxpl\codes;  \intrinsic 'code' declarations
+string 0;               \use zero-terminated strings
+char S,
+     A(1),              \sets up an array containing one byte
+     B(0);              \sets up an array containing no bytes
+int  I;
+[S:= "";                \a zero-length (null) string
+A:= Reserve(1);         \sets up a 1-byte array at runtime
+B:= Reserve(0);         \sets up a 0-byte array at runtime
+I:= I ! 1<<3;           \stores a single 1 bit into an integer
+I:= I & ~(1<<29);       \stores a 0 bit into bit 29 of the integer
+IntOut(0, I>>3 & 1);    \displays value of bit 3
+]