C++17 compatible lambda expressions to replace `bind2nd` (#559)

* Conditionally use a lambda rather than the older `bind2nd` style.

* Duplicate the if statements.

* Centralise the conditional compilation to an implementation of find_if_not.

* Refactoring of name and code placement after review.

* Use `FindIfNot` where appropriate.

* Remove whitespace.

1 files changed, 1 insertions, 1 deletions

diff --git a/oaep.cpp b/oaep.cpp
index 08d75a99..fb9e31a0 100644
--- a/oaep.cpp
+++ b/oaep.cpp
@@ -82,7 +82,7 @@ DecodingResult OAEP_Base::Unpad(const byte *oaepBlock, size_t oaepBlockLen, byte
 	// DB = pHash' || 00 ... || 01 || M

 	byte *M = std::find(maskedDB+hLen, maskedDB+dbLen, 0x01);

 	invalid = (M == maskedDB+dbLen) || invalid;

-	invalid = (std::find_if(maskedDB+hLen, M, std::bind2nd(std::not_equal_to<byte>(), byte(0))) != M) || invalid;

+	invalid = (FindIfNot(maskedDB+hLen, M, byte(0)) != M) || invalid;

 	invalid = !pHash->VerifyDigest(maskedDB, encodingParameters.begin(), encodingParameters.size()) || invalid;

 

 	if (invalid)