debian-packages/taggedalgebraic
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Add explicit unit test for commonAlignment.

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This commit is contained in:
Sönke Ludwig 2019-04-16 10:09:27 +02:00
parent fd85603576
commit ba79a25298
1 changed files with 15 additions and 0 deletions
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15
source/taggedalgebraic/taggedunion.d
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@ -791,6 +791,21 @@ private size_t commonAlignment(TYPES...)()
return ret;
}
unittest {
align(2) struct S1 { ubyte x; }
align(4) struct S2 { ubyte x; }
align(8) struct S3 { ubyte x; }
static if (__VERSION__ > 2076) { // DMD 2.076 ignores the alignment
assert(commonAlignment!S1 == 2);
assert(commonAlignment!S2 == 4);
assert(commonAlignment!S3 == 8);
assert(commonAlignment!(S1, S3) == 8);
assert(commonAlignment!(S1, S2, S3) == 8);
assert(commonAlignment!(S2, S2, S1) == 4);
}
}
package void rawEmplace(T)(void[] dst, ref T src)
{
T[] tdst = () @trusted { return cast(T[])dst[0 .. T.sizeof]; } ();