<p>
A <i>type constraint</i> is an <a href="#Interface_types">interface</a> that defines the
set of permissible type arguments for the respective type parameter and controls the
operations supported by values of that type parameter
[<a href="#Go_1.18">Go 1.18</a>].
</p>

<pre class="ebnf">
TypeConstraint = TypeElem .
</pre>

<p>

pkg regexp/syntax, const ErrInvalidEscape = "invalid escape sequence"
pkg regexp/syntax, const ErrInvalidNamedCapture = "invalid named capture"
pkg regexp/syntax, const ErrInvalidPerlOp = "invalid or unsupported Perl syntax"
pkg regexp/syntax, const ErrInvalidRepeatOp = "invalid nested repetition operator"
pkg regexp/syntax, const ErrInvalidRepeatSize = "invalid repeat count"
pkg regexp/syntax, const ErrInvalidUTF8 = "invalid UTF-8"

r-Side-Encryption-S3-Sealed-Key":"IAAfAL8v3MjKAEmIec2Y+CNDniD/k2A==","X-Minio-Internal-Server-Side-Encryption-Seal-Algorithm":"DAREv2-HMAC-SHA256","content-type":"application/octet-stream"}},{"Bucket":"buck1","Name":"go_113/src/cmd/internal/sys/supported.go","UserDef":{"X-Minio-Internal-Server-Side-Encryption-Iv":"nxk0wIs2XJ1wF9RDODgx+cgmP7roiLCny+KaCVUQ=","X-Minio-Internal-Server-Side-Encryption-S3-Kms-Key-Id":"my-minio-key","X-Minio-Internal-Server-Side-Encryption-S3-Kms-Sealed-Key":"IAAfAOdn0...