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view tests/mini/slices.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 slices; void main() { //char[] a = "hello world"; //char[5] b = a[0..5]; //char* cp = a.ptr; //char[] c = cp[0..1]; } char[] first5(char[] str) { char* p = str.ptr; return p[0..5]; } int[] one() { static int i; return (&i)[0..1]; } void[] init() { static char c; return (&c)[0 .. 1]; } void[] init2() { static char c; return (cast(char *)&c)[0 .. 1]; }