Another shot at fixing the issues with (constant) struct literals and their addresses. See DMD2682, #218, #324. The idea is to separate the notion of const from 'this variable can always be replaced with its initializer' in the frontend. To do that, I introduced Declaration::isSameAsInitializer, which is overridden in VarDeclaration to return false for constants that have a struct literal initializer. So {{{ const S s = S(5); void foo() { auto ps = &s; } // is no longer replaced by void foo() { auto ps = &(S(5)); } }}} To make taking the address of a struct constant with a struct-initializer outside of function scope possible, I made sure that AddrExp::optimize doesn't try to run the argument's optimization with WANTinterpret - that'd again replace the constant with a struct literal temporary.

// Compiler implementation of the D programming language
// utf.h
// Copyright (c) 2003-2006 by Digital Mars
// All Rights Reserved
// written by Walter Bright
// http://www.digitalmars.com
// License for redistribution is by either the Artistic License
// in artistic.txt, or the GNU General Public License in gnu.txt.
// See the included readme.txt for details.

#ifndef DMD_UTF_H
#define DMD_UTF_H


typedef unsigned dchar_t;

int utf_isValidDchar(dchar_t c);

char *utf_decodeChar(unsigned char *s, size_t len, size_t *pidx, dchar_t *presult);
char *utf_decodeWchar(unsigned short *s, size_t len, size_t *pidx, dchar_t *presult);

char *utf_validateString(unsigned char *s, size_t len);

extern int isUniAlpha(dchar_t);

#endif