[libcxx] Fix printf formats in two tests.

rGcc69d211d0d65d7b introduced several uses of `printf` with format
directives `%lu` and `%ld` to format values of type `size_t` and
`ptrdiff_t` respectively.

That doesn't reliably work in all C implementations, because those
types aren't necessarily the same thing as 'long int': sometimes
they're not even the same size, and when they are the same size, they
might be officially defined as int rather than long (for example),
which causes clang to emit a diagnostic for the mismatch.

C has special-purpose printf modifier letters for these two types, so
it's safer to use them. Changed all `%lu` on `size_t` to `%zu`, and
all `%ld` on `ptrdiff_t` to `%td`.

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D89545

Author: statham-arm

libcxx/test/libcxx/containers/sequences/deque/spare_block_handling.pass.cpp

@@ -31,12 +31,12 @@ struct ContainerAdaptor : public Adaptor {
 
 template <class Deque>
 static void print(const Deque& d) {
-  std::printf("%lu : __front_spare() == %lu"
-                 " : __back_spare() == %lu"
-                 " : __capacity() == %lu"
-                 " : bytes allocated == %lu\n",
-      d.size(), d.__front_spare(), d.__back_spare(), d.__capacity(),
-      malloc_allocator_base::outstanding_bytes);
+  std::printf("%zu : __front_spare() == %zu"
+              " : __back_spare() == %zu"
+              " : __capacity() == %zu"
+              " : bytes allocated == %zu\n",
+              d.size(), d.__front_spare(), d.__back_spare(), d.__capacity(),
+              malloc_allocator_base::outstanding_bytes);
 }
 
 template <class T>

libcxx/test/std/containers/associative/map/map.cons/copy_assign.pass.cpp

@@ -77,20 +77,21 @@ class counting_allocatorF {
 bool balanced_allocs() {
     std::vector<int> temp1, temp2;
 
-    std::printf("Allocations = %lu, deallocations = %lu\n", ca_allocs.size(), ca_deallocs.size());
+    std::printf("Allocations = %zu, deallocations = %zu\n", ca_allocs.size(),
+                ca_deallocs.size());
     if (ca_allocs.size() != ca_deallocs.size())
         return false;
 
     temp1 = ca_allocs;
     std::sort(temp1.begin(), temp1.end());
     temp2.clear();
     std::unique_copy(temp1.begin(), temp1.end(), std::back_inserter<std::vector<int>>(temp2));
-    std::printf("There were %lu different allocators\n", temp2.size());
+    std::printf("There were %zu different allocators\n", temp2.size());
 
     for (std::vector<int>::const_iterator it = temp2.begin(); it != temp2.end(); ++it ) {
         std::ptrdiff_t const allocs = std::count(ca_allocs.begin(), ca_allocs.end(), *it);
         std::ptrdiff_t const deallocs = std::count(ca_deallocs.begin(), ca_deallocs.end(), *it);
-        std::printf("%d: %ld vs %ld\n", *it, allocs, deallocs);
+        std::printf("%d: %td vs %td\n", *it, allocs, deallocs);
         if (allocs != deallocs)
             return false;
     }
@@ -99,12 +100,12 @@ bool balanced_allocs() {
     std::sort(temp1.begin(), temp1.end());
     temp2.clear();
     std::unique_copy(temp1.begin(), temp1.end(), std::back_inserter<std::vector<int>>(temp2));
-    std::printf("There were %lu different (de)allocators\n", temp2.size());
+    std::printf("There were %zu different (de)allocators\n", temp2.size());
 
     for (std::vector<int>::const_iterator it = ca_deallocs.begin(); it != ca_deallocs.end(); ++it ) {
         std::ptrdiff_t const allocs = std::count(ca_allocs.begin(), ca_allocs.end(), *it);
         std::ptrdiff_t const deallocs = std::count(ca_deallocs.begin(), ca_deallocs.end(), *it);
-        std::printf("%d: %ld vs %ld\n", *it, allocs, deallocs);
+        std::printf("%d: %td vs %td\n", *it, allocs, deallocs);
         if (allocs != deallocs)
             return false;
     }