Changeset 6d267ca for src/Common

Timestamp:

Jul 25, 2017, 10:41:24 AM (7 years ago)

Author:

Rob Schluntz <rschlunt@…>

Branches:

ADT, aaron-thesis, arm-eh, ast-experimental, cleanup-dtors, deferred_resn, demangler, enum, forall-pointer-decay, jacob/cs343-translation, jenkins-sandbox, master, new-ast, new-ast-unique-expr, new-env, no_list, persistent-indexer, pthread-emulation, qualifiedEnum, resolv-new, with_gc

Children:

d335627

Parents:

9191a8e

Message:

Add unsafe_group_iterate

File:

• src/Common/utility.h (modified) (2 diffs)

src/Common/utility.h

@@ -310 +310 @@
 template< typename T1, typename T2 >
 struct group_iterate_t {
-        group_iterate_t( const T1 & v1, const T2 & v2 ) : args(v1, v2) {
-                assertf(v1.size() == v2.size(), "group iteration requires containers of the same size.");
+        group_iterate_t( bool skipBoundsCheck, const T1 & v1, const T2 & v2 ) : args(v1, v2) {
+                assertf(skipBoundsCheck || v1.size() == v2.size(), "group iteration requires containers of the same size: <%u, %u>.", v1.size(), v2.size());
         };
 
@@ -336 +336 @@
 };
 
+/// performs bounds check to ensure that all arguments are of the same length.
 template< typename... Args >
 group_iterate_t<Args...> group_iterate( Args &&... args ) {
-        return group_iterate_t<Args...>(std::forward<Args>( args )...);
+        return group_iterate_t<Args...>(false, std::forward<Args>( args )...);
+}
+
+/// does not perform a bounds check - requires user to ensure that iteration terminates when appropriate.
+template< typename... Args >
+group_iterate_t<Args...> unsafe_group_iterate( Args &&... args ) {
+        return group_iterate_t<Args...>(true, std::forward<Args>( args )...);
 }