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annotate tests/mini/v2d.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> |
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date | Sun, 14 Jun 2009 19:49:58 +0200 |
parents | 1bb99290e03a |
children |
rev | line source |
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270
d9d5d59873d8
[svn r291] Fixed a bunch of the old Phobos tests to work with Tango.
lindquist
parents:
1
diff
changeset
|
1 extern(C) int printf(char*, ...); |
d9d5d59873d8
[svn r291] Fixed a bunch of the old Phobos tests to work with Tango.
lindquist
parents:
1
diff
changeset
|
2 |
1 | 3 struct V2D(T) |
4 { | |
5 T x,y; | |
6 | |
7 T dot(ref V2D v) | |
8 { | |
9 return x*v.x + y*v.y; | |
10 } | |
11 | |
12 V2D opAdd(ref V2D v) | |
13 { | |
14 return V2D(x+v.x, y+v.y); | |
15 } | |
16 } | |
17 | |
18 alias V2D!(float) V2Df; | |
19 | |
20 void main() | |
21 { | |
22 printf("V2D test\n"); | |
23 auto up = V2Df(0.0f, 1.0f); | |
24 auto right = V2Df(1.0f, 0.0f); | |
25 assert(up.dot(right) == 0.0f); | |
26 auto upright = up + right; | |
27 assert(upright.x == 1.0f && upright.y == 1.0f); | |
28 auto copy = upright; | |
29 copy.x++; | |
30 assert(copy.x > upright.x); | |
31 printf(" SUCCESS\n"); | |
32 } |