sha1: give state enum a print operator

hash/sha1.cpp

@@ -37,6 +37,19 @@ using std::begin;
 using std::end;
 
 
+//-----------------------------------------------------------------------------
+std::ostream&
+operator<< (std::ostream &os, SHA1::state_t t) {
+    switch (t) {
+        case SHA1::READY:       os << "READY";      return os;
+        case SHA1::FINISHED:    os << "FINISHED";   return os;
+        default:
+            unreachable ();
+    }
+}
+
+
+//-----------------------------------------------------------------------------
 // Logical function for sequence of rounds
 static inline uint32_t
 f_00 (uint32_t B, uint32_t C, uint32_t D)

hash/sha1.hpp

@@ -40,13 +40,15 @@ namespace util {
                 digest_t digest (void) const;
                 void reset  (void);
 
+                enum state_t {
+                    READY,
+                    FINISHED
+                };
+
             protected:
                 void process (void);
 
-                enum {
+                state_t state;
-                    READY,
-                    FINISHED
-                } state;
 
                 uint64_t total;
                 uint32_t H[5];