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Make std.string module CTFEable

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k-hara 2013-07-16 03:11:29 +09:00
parent 74b29c478e
commit edcd51104d
2 changed files with 162 additions and 10 deletions
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11
std/algorithm.d
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@ -6053,7 +6053,16 @@ int cmp(alias pred = "a < b", R1, R2)(R1 r1, R2 r2) if (isSomeString!R1 && isSom
static if (typeof(r1[0]).sizeof == 1)
{
immutable len = min(r1.length, r2.length);
immutable result = std.c.string.memcmp(r1.ptr, r2.ptr, len);
immutable result = __ctfe ?
{
foreach (i; 0 .. len)
{
if (r1[i] != r2[i])
return threeWayInt(r1[i], r2[i]);
}
return 0;
}()
: std.c.string.memcmp(r1.ptr, r2.ptr, len);
if (result) return result;
}
else