Add constexpr test

Signed-off-by: Vladislav Shchapov <vladislav@shchapov.ru>
fmtlib · May 23, 2023 · 7d3092e · 7d3092e
1 parent a8de699
commit 7d3092e
Showing 1 changed file with 19 additions and 0 deletions.
diff --git a/test/format-impl-test.cc b/test/format-impl-test.cc
@@ -524,6 +524,22 @@ TEST(format_impl_test, to_utf8) {
   EXPECT_EQ(s.size(), u.size());
 }
 
+FMT_CONSTEXPR20 bool constexpr_iceil() {
+  for (double v : std::initializer_list<double>{
+           ((std::numeric_limits<int>::min)() + 0.5),
+           -1.2,
+           -0.2,
+           0.0,
+           0.2,
+           1.2,
+           4.0,
+           ((std::numeric_limits<int>::max)() - 0.5),
+       }) {
+    auto r = fmt::detail::iceil<int>(v);
+    fmt::detail::ignore_unused(r);
+  }
+  return true;
+}
 TEST(format_impl_test, iceil) {
   for (double v : std::initializer_list<double>{
            ((std::numeric_limits<int>::min)() + 0.5),
@@ -537,4 +553,7 @@ TEST(format_impl_test, iceil) {
        }) {
     EXPECT_EQ(fmt::detail::iceil<int>(v), static_cast<int>(std::ceil(v)));
   }
+
+  FMT_CONSTEXPR20 auto result = constexpr_iceil();
+  EXPECT_TRUE(result);
 }