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[REG2.064a] Issue 10687 - Refused cast from uint[] to array of uint-based enums at compile-time #2612

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Oct 3, 2013
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[REG2.064a] Issue 10687 - Refused cast from uint[] to array of uint-based enums at compile-time #2612

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9 changes: 6 additions & 3 deletions src/ctfeexpr.c
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Original file line number Diff line number Diff line change
Expand Up @@ -600,9 +600,12 @@ bool isSafePointerCast(Type *srcPointee, Type *destPointee)
if (destPointee->ty == Tvoid)
return true;

// It's OK if they are the same size integers, eg int* and uint*
return srcPointee->isintegral() && destPointee->isintegral()
&& srcPointee->size() == destPointee->size();
// It's OK if they are the same size (static array of) integers, eg:
// int* --> uint*
// int[5][] --> uint[5][]
return srcPointee->baseElemOf()->isintegral() &&
destPointee->baseElemOf()->isintegral() &&
srcPointee->size() == destPointee->size();
}

Expression *getAggregateFromPointer(Expression *e, dinteger_t *ofs)
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6 changes: 5 additions & 1 deletion test/runnable/interpret.d
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Expand Up @@ -3113,12 +3113,16 @@ void test112()
// 10687

enum Foo10687 : uint { A, B, C, D, E }
immutable uint[5][] m10687 = [[0, 1, 2, 3, 4]];

void test10687()
{
static immutable uint[5] a1 = [0, 1, 2, 3, 4];
auto a2 = cast(immutable(Foo10687[5]))a1;
auto a2 = cast(immutable(Foo10687[5]))a1;
static a3 = cast(immutable(Foo10687[5]))a1;

auto foos1 = cast(immutable(Foo10687[5][]))m10687;
static foos2 = cast(immutable(Foo10687[5][]))m10687;
}

/************************************************/
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