Replace deprecated result_of with decltype

vtnerd · vtnerd · commit 808dff7d2fa1 · 2024-10-10T14:37:03.000-04:00
diff --git a/src/lmdb/database.h b/src/lmdb/database.h
@@ -111,7 +111,7 @@ namespace lmdb
             \return The result of calling `f`.
         */
         template<typename F>
-        typename std::result_of<F(MDB_txn&)>::type try_write(F f, unsigned attempts = 3)
+        auto try_write(F f, unsigned attempts = 3) -> decltype(f(std::declval<MDB_txn&>()))
         {
             for (unsigned i = 0; i < attempts; ++i)
             {

Original file line number	Diff line number	Diff line change
`@@ -111,7 +111,7 @@ namespace lmdb`
`111`	`111`	\return The result of calling `f`.
`112`	`112`	`*/`
`113`	`113`	`template<typename F>`
`114`		`- typename std::result_of<F(MDB_txn&)>::type try_write(F f, unsigned attempts = 3)`
	`114`	`+ auto try_write(F f, unsigned attempts = 3) -> decltype(f(std::declval<MDB_txn&>()))`
`115`	`115`	`{`
`116`	`116`	`for (unsigned i = 0; i < attempts; ++i)`
`117`	`117`	`{`