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// g++ 1.37.1 bug 900227_01
// g++ allows pointer type values to be converted to integral types which are
// not actually large enough to hold the converted values.
// Section 3.3.4 of the ANSI C standard says:
// A pointer may be converted to an integral type. The size of the
// integer required and the results are implementation defined. If
// the space provided is not long enough, the behavior is undefined.
// I believe that the only proper thing to do in such cases is to generate
// errors. After all, if the converted value gets truncated, it is not
// likely to be useful after that.
// Furthermore, as the following example demonstrates, allowing pointers
// to be converted to integral types which are not of sufficient size to
// completely hold the converted values may cause additional troubles.
// I tried the following code on 5 different machines and it failed on
// all five (unless I also use the GNU assembler and the GNU linker). Three
// of the five (Sun3, Sun4, and Symmetry) got link-time errors about byte
// offset overflows. The other two (368/SystemV and AViiON) got assembly
// time errors about relocatable names used in "constant" expressions.
// keywords: casts, pointer types, integral types
// Update 2/10/95: The compiler will now compute these expressions at
// runtime. I think this is in the spirit of the GNU compilers (jason).
// Special g++ Options:
int main ();
short s = (short) &main;
char c = (char) &main;
int main () { return 0; }
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