Make Hash[160] consume range-like objects

1 files changed, 7 insertions, 28 deletions

diff --git a/src/hash.h b/src/hash.h
index 409c84ba30..71806483ff 100644
--- a/src/hash.h
+++ b/src/hash.h
@@ -69,52 +69,31 @@ public:
 };
 
 /** Compute the 256-bit hash of an object. */
-template<typename T1>
-inline uint256 Hash(const T1 pbegin, const T1 pend)
+template<typename T>
+inline uint256 Hash(const T& in1)
 {
-    static const unsigned char pblank[1] = {};
     uint256 result;
-    CHash256().Write({pbegin == pend ? pblank : (const unsigned char*)&pbegin[0], (pend - pbegin) * sizeof(pbegin[0])})
-              .Finalize(result);
+    CHash256().Write(MakeUCharSpan(in1)).Finalize(result);
     return result;
 }
 
 /** Compute the 256-bit hash of the concatenation of two objects. */
 template<typename T1, typename T2>
-inline uint256 Hash(const T1 p1begin, const T1 p1end,
-                    const T2 p2begin, const T2 p2end) {
-    static const unsigned char pblank[1] = {};
+inline uint256 Hash(const T1& in1, const T2& in2) {
     uint256 result;
-    CHash256().Write({p1begin == p1end ? pblank : (const unsigned char*)&p1begin[0], (p1end - p1begin) * sizeof(p1begin[0])})
-              .Write({p2begin == p2end ? pblank : (const unsigned char*)&p2begin[0], (p2end - p2begin) * sizeof(p2begin[0])})
-              .Finalize(result);
+    CHash256().Write(MakeUCharSpan(in1)).Write(MakeUCharSpan(in2)).Finalize(result);
     return result;
 }
 
 /** Compute the 160-bit hash an object. */
 template<typename T1>
-inline uint160 Hash160(const T1 pbegin, const T1 pend)
+inline uint160 Hash160(const T1& in1)
 {
-    static unsigned char pblank[1] = {};
     uint160 result;
-    CHash160().Write({pbegin == pend ? pblank : (const unsigned char*)&pbegin[0], (pend - pbegin) * sizeof(pbegin[0])})
-              .Finalize(result);
+    CHash160().Write(MakeUCharSpan(in1)).Finalize(result);
     return result;
 }
 
-/** Compute the 160-bit hash of a vector. */
-inline uint160 Hash160(const std::vector<unsigned char>& vch)
-{
-    return Hash160(vch.begin(), vch.end());
-}
-
-/** Compute the 160-bit hash of a vector. */
-template<unsigned int N>
-inline uint160 Hash160(const prevector<N, unsigned char>& vch)
-{
-    return Hash160(vch.begin(), vch.end());
-}
-
 /** A writer stream (for serialization) that computes a 256-bit hash. */
 class CHashWriter
 {