Make bt const in BERDecodePeekLength

1 files changed, 1 insertions, 1 deletions

diff --git a/asn.cpp b/asn.cpp
index e21f1c59..d3ceef9d 100644
--- a/asn.cpp
+++ b/asn.cpp
@@ -285,7 +285,7 @@ void DERReencode(BufferedTransformation &source, BufferedTransformation &dest)
 	encoder.MessageEnd();

 }

 

-size_t BERDecodePeekLength(BufferedTransformation &bt)

+size_t BERDecodePeekLength(const BufferedTransformation &bt)

 {

 	lword count = (std::min)(bt.MaxRetrievable(), static_cast<lword>(16));

 	if (count == 0) return 0;