P3369R0 constexpr for uninitialized_default_construct

Author: jensmaurer

source/algorithms.tex

@@ -11267,7 +11267,8 @@
 \indexlibraryglobal{uninitialized_default_construct}%
 \begin{itemdecl}
 template<class NoThrowForwardIterator>
-  void uninitialized_default_construct(NoThrowForwardIterator first, NoThrowForwardIterator last);
+  constexpr void uninitialized_default_construct(NoThrowForwardIterator first,
+                                                 NoThrowForwardIterator last);
 \end{itemdecl}
 
 \begin{itemdescr}
@@ -11286,10 +11287,10 @@
 namespace ranges {
   template<@\exposconcept{nothrow-forward-iterator}@ I, @\exposconcept{nothrow-sentinel-for}@<I> S>
     requires @\libconcept{default_initializable}@<iter_value_t<I>>
-    I uninitialized_default_construct(I first, S last);
+    constexpr I uninitialized_default_construct(I first, S last);
   template<@\exposconcept{nothrow-forward-range}@ R>
     requires @\libconcept{default_initializable}@<range_value_t<R>>
-    borrowed_iterator_t<R> uninitialized_default_construct(R&& r);
+    constexpr borrowed_iterator_t<R> uninitialized_default_construct(R&& r);
 }
 \end{itemdecl}
 
@@ -11307,7 +11308,8 @@
 \indexlibraryglobal{uninitialized_default_construct_n}%
 \begin{itemdecl}
 template<class NoThrowForwardIterator, class Size>
-  NoThrowForwardIterator uninitialized_default_construct_n(NoThrowForwardIterator first, Size n);
+  constexpr NoThrowForwardIterator
+    uninitialized_default_construct_n(NoThrowForwardIterator first, Size n);
 \end{itemdecl}
 
 \begin{itemdescr}
@@ -11327,7 +11329,7 @@
 namespace ranges {
   template<@\exposconcept{nothrow-forward-iterator}@ I>
     requires @\libconcept{default_initializable}@<iter_value_t<I>>
-    I uninitialized_default_construct_n(I first, iter_difference_t<I> n);
+    constexpr I uninitialized_default_construct_n(I first, iter_difference_t<I> n);
 }
 \end{itemdecl}
 

source/memory.tex

@@ -185,14 +185,14 @@
     concept @\exposconcept{nothrow-forward-range}@ = @\seebelow@;     // \expos
 
   template<class NoThrowForwardIterator>
-    void uninitialized_default_construct(NoThrowForwardIterator first,              // freestanding
-                                         NoThrowForwardIterator last);
+    constexpr void uninitialized_default_construct(NoThrowForwardIterator first,    // freestanding
+                                                   NoThrowForwardIterator last);
   template<class ExecutionPolicy, class NoThrowForwardIterator>
     void uninitialized_default_construct(ExecutionPolicy&& exec,                    // see \ref{algorithms.parallel.overloads}
                                          NoThrowForwardIterator first,
                                          NoThrowForwardIterator last);
   template<class NoThrowForwardIterator, class Size>
-    NoThrowForwardIterator
+    constexpr NoThrowForwardIterator
       uninitialized_default_construct_n(NoThrowForwardIterator first, Size n);      // freestanding
   template<class ExecutionPolicy, class NoThrowForwardIterator, class Size>
     NoThrowForwardIterator
@@ -202,14 +202,15 @@
   namespace ranges {
     template<@\exposconcept{nothrow-forward-iterator}@ I, @\exposconcept{nothrow-sentinel-for}@<I> S>
       requires @\libconcept{default_initializable}@<iter_value_t<I>>
-        I uninitialized_default_construct(I first, S last);                         // freestanding
+        constexpr I uninitialized_default_construct(I first, S last);               // freestanding
     template<@\exposconcept{nothrow-forward-range}@ R>
       requires @\libconcept{default_initializable}@<range_value_t<R>>
-        borrowed_iterator_t<R> uninitialized_default_construct(R&& r);              // freestanding
+        constexpr borrowed_iterator_t<R> uninitialized_default_construct(R&& r);    // freestanding
 
     template<@\exposconcept{nothrow-forward-iterator}@ I>
       requires @\libconcept{default_initializable}@<iter_value_t<I>>
-        I uninitialized_default_construct_n(I first, iter_difference_t<I> n);       // freestanding
+        constexpr I uninitialized_default_construct_n(I first,                      // freestanding
+                                                      iter_difference_t<I> n);
   }
 
   template<class NoThrowForwardIterator>