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view tests/mini/structs3.d @ 1499:df11cdec45a2
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.
author | Christian Kamm <kamm incasoftware de> |
---|---|
date | Sun, 14 Jun 2009 19:49:58 +0200 |
parents | 1bb99290e03a |
children |
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line source
module structs3; struct S { char c; float f; } struct T { S s; long l; } void main() { T t; float f = void; float* fp = void; {f = t.s.f;} {t.s.f = 0.0;} {fp = &t.s.f;} {*fp = 1.0;} {assert(t.s.f == 1.0);} {assert(*(&t.s.f) == 1.0);} {t.s.c = 'a';} {assert(t.s.c == 'a');} {t.l = 64;} {assert(t.l == 64);} }