https://d.puremagic.com/issues/show_bug.cgi?id=12419
Summary: assertion failure in std.utf
Product: D
Version: D2
Platform: All
OS/Version: All
Status: NEW
Severity: normal
Priority: P2
Component: Phobos
AssignedTo: [email protected]
ReportedBy: [email protected]
--- Comment #0 from Dmitry Olshansky <[email protected]> 2014-03-20
02:19:24 PDT ---
Test code:
import std.utf;
void main()
{
char[4] val;
val[0] = 0b1111_0111;
val[1] = 0b1011_1111;
val[2] = 0b1011_1111;
val[3] = 0b1011_1111;
size_t i = 0;
dchar ch = decode(val[], i); //must have thrown exception
}
Instead:
[email protected](950): Assertion failure
The trick is that encoded value (0x1FFFFF) is way beyond the standard range
[0,0x10FFFF] and then the out contract of decode fails.
std.utf.decode must throw on 4 byte sequence with values above 0x10_FFFF.
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