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view tests/minicomplex/vararg2.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 tangotests.vararg2; extern(C) int printf(char*, ...); import tango.core.Vararg; void main() { func(0xf00, 1, " ", 2, " ", 3, "\n", 0.3, "\n"); } void func(int foo, ...) { foreach(t; _arguments) { if (t == typeid(char[])) { char[] str = va_arg!(char[])(_argptr); printf("%.*s", str.length, str.ptr); } else if (t == typeid(int)) { printf("%d", va_arg!(int)(_argptr)); } else if (t == typeid(float)) { printf("%f", va_arg!(float)(_argptr)); } else if (t == typeid(double)) { printf("%f", va_arg!(double)(_argptr)); } else if (t == typeid(real)) { printf("%f", va_arg!(real)(_argptr)); } else { assert(0, "not int"); } } }