prevector: add C++11-like data() method

random-zebra · random-zebra · commit c3ecc12ef24a · 2020-05-17T15:19:14.000+02:00
This returns a pointer to the beginning of the vector's data. backports bitcoin/bitcoin@47314e6
diff --git a/src/prevector.h b/src/prevector.h
@@ -475,6 +475,14 @@ class prevector {
             return ((size_t)(sizeof(T))) * _union.capacity;
         }
     }
+
+    value_type* data() noexcept {
+        return item_ptr(0);
+    }
+
+    const value_type* data() const {
+        return item_ptr(0);
+    }
 };
 #pragma pack(pop)
 

Original file line number	Diff line number	Diff line change
`@@ -475,6 +475,14 @@ class prevector {`
`475`	`475`	`return ((size_t)(sizeof(T))) * _union.capacity;`
`476`	`476`	`}`
`477`	`477`	`}`
	`478`	`+`
	`479`	`+ value_type* data() noexcept {`
	`480`	`+ return item_ptr(0);`
	`481`	`+ }`
	`482`	`+`
	`483`	`+ const value_type* data() const {`
	`484`	`+ return item_ptr(0);`
	`485`	`+ }`
`478`	`486`	`};`
`479`	`487`	`#pragma pack(pop)`
`480`	`488`