[libcxx-commits] [libcxx] [libc++] Fix num_get base parsing (PR #170460)

via libcxx-commits libcxx-commits at lists.llvm.org
Wed Dec 3 02:49:59 PST 2025


github-actions[bot] wrote:

<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


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<details>
<summary>
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``````````bash
git-clang-format --diff origin/main HEAD --extensions h,cpp -- libcxx/include/__locale_dir/num.h libcxx/test/std/localization/locale.categories/category.numeric/locale.num.get/facet.num.get.members/get_long.pass.cpp --diff_from_common_commit
``````````

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in a stack if you are using a stacked PR workflow. You can limit the results by
changing `origin/main` to the base branch/commit you want to compare against.
:warning:

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<details>
<summary>
View the diff from clang-format here.
</summary>

``````````diff
diff --git a/libcxx/test/std/localization/locale.categories/category.numeric/locale.num.get/facet.num.get.members/get_long.pass.cpp b/libcxx/test/std/localization/locale.categories/category.numeric/locale.num.get/facet.num.get.members/get_long.pass.cpp
index 45b034833..db9c4585d 100644
--- a/libcxx/test/std/localization/locale.categories/category.numeric/locale.num.get/facet.num.get.members/get_long.pass.cpp
+++ b/libcxx/test/std/localization/locale.categories/category.numeric/locale.num.get/facet.num.get.members/get_long.pass.cpp
@@ -670,101 +670,101 @@ int main(int, char**)
       assert(v == std::numeric_limits<long>::min());
     }
 
-  { // Check that auto-detection of the base works properly
-    ios.flags(ios.flags() & ~std::ios::basefield);
-    { // zeroes
-      {
-        v                          = -1;
-        const char str[]           = "0";
-        std::ios_base::iostate err = ios.goodbit;
+    { // Check that auto-detection of the base works properly
+      ios.flags(ios.flags() & ~std::ios::basefield);
+      { // zeroes
+        {
+          v                          = -1;
+          const char str[]           = "0";
+          std::ios_base::iostate err = ios.goodbit;
 
-        cpp17_input_iterator<const char*> iter =
-            f.get(cpp17_input_iterator<const char*>(str), cpp17_input_iterator<const char*>(str + 1), ios, err, v);
-        assert(base(iter) == str + 1);
-        assert(err == ios.eofbit);
-        assert(v == 0);
-      }
-      {
-        v                          = -1;
-        const char str[]           = "00";
-        std::ios_base::iostate err = ios.goodbit;
+          cpp17_input_iterator<const char*> iter =
+              f.get(cpp17_input_iterator<const char*>(str), cpp17_input_iterator<const char*>(str + 1), ios, err, v);
+          assert(base(iter) == str + 1);
+          assert(err == ios.eofbit);
+          assert(v == 0);
+        }
+        {
+          v                          = -1;
+          const char str[]           = "00";
+          std::ios_base::iostate err = ios.goodbit;
 
-        cpp17_input_iterator<const char*> iter =
-            f.get(cpp17_input_iterator<const char*>(str), cpp17_input_iterator<const char*>(str + 2), ios, err, v);
-        assert(base(iter) == str + 2);
-        assert(err == ios.eofbit);
-        assert(v == 0);
-      }
-      {
-        v                          = -1;
-        const char str[]           = "0x0";
-        std::ios_base::iostate err = ios.goodbit;
+          cpp17_input_iterator<const char*> iter =
+              f.get(cpp17_input_iterator<const char*>(str), cpp17_input_iterator<const char*>(str + 2), ios, err, v);
+          assert(base(iter) == str + 2);
+          assert(err == ios.eofbit);
+          assert(v == 0);
+        }
+        {
+          v                          = -1;
+          const char str[]           = "0x0";
+          std::ios_base::iostate err = ios.goodbit;
 
-        cpp17_input_iterator<const char*> iter =
-            f.get(cpp17_input_iterator<const char*>(str), cpp17_input_iterator<const char*>(str + 3), ios, err, v);
-        assert(base(iter) == str + 3);
-        assert(err == ios.eofbit);
-        assert(v == 0);
-      }
-      {
-        v                          = -1;
-        const char str[]           = "0X0";
-        std::ios_base::iostate err = ios.goodbit;
+          cpp17_input_iterator<const char*> iter =
+              f.get(cpp17_input_iterator<const char*>(str), cpp17_input_iterator<const char*>(str + 3), ios, err, v);
+          assert(base(iter) == str + 3);
+          assert(err == ios.eofbit);
+          assert(v == 0);
+        }
+        {
+          v                          = -1;
+          const char str[]           = "0X0";
+          std::ios_base::iostate err = ios.goodbit;
 
-        cpp17_input_iterator<const char*> iter =
-            f.get(cpp17_input_iterator<const char*>(str), cpp17_input_iterator<const char*>(str + 3), ios, err, v);
-        assert(base(iter) == str + 3);
-        assert(err == ios.eofbit);
-        assert(v == 0);
+          cpp17_input_iterator<const char*> iter =
+              f.get(cpp17_input_iterator<const char*>(str), cpp17_input_iterator<const char*>(str + 3), ios, err, v);
+          assert(base(iter) == str + 3);
+          assert(err == ios.eofbit);
+          assert(v == 0);
+        }
       }
-    }
-    { // first character after base is out of range
-      {
-        v                          = -1;
-        const char str[]           = "08";
-        std::ios_base::iostate err = ios.goodbit;
+      { // first character after base is out of range
+        {
+          v                          = -1;
+          const char str[]           = "08";
+          std::ios_base::iostate err = ios.goodbit;
 
-        cpp17_input_iterator<const char*> iter =
-            f.get(cpp17_input_iterator<const char*>(str), cpp17_input_iterator<const char*>(str + 2), ios, err, v);
-        assert(base(iter) == str + 1);
-        assert(err == ios.goodbit);
-        assert(v == 0);
-      }
-      {
-        v                          = -1;
-        const char str[]           = "1a";
-        std::ios_base::iostate err = ios.goodbit;
+          cpp17_input_iterator<const char*> iter =
+              f.get(cpp17_input_iterator<const char*>(str), cpp17_input_iterator<const char*>(str + 2), ios, err, v);
+          assert(base(iter) == str + 1);
+          assert(err == ios.goodbit);
+          assert(v == 0);
+        }
+        {
+          v                          = -1;
+          const char str[]           = "1a";
+          std::ios_base::iostate err = ios.goodbit;
 
-        cpp17_input_iterator<const char*> iter =
-            f.get(cpp17_input_iterator<const char*>(str), cpp17_input_iterator<const char*>(str + 2), ios, err, v);
-        assert(base(iter) == str + 1);
-        assert(err == ios.goodbit);
-        assert(v == 1);
-      }
-      {
-        v                          = -1;
-        const char str[]           = "0xg";
-        std::ios_base::iostate err = ios.goodbit;
+          cpp17_input_iterator<const char*> iter =
+              f.get(cpp17_input_iterator<const char*>(str), cpp17_input_iterator<const char*>(str + 2), ios, err, v);
+          assert(base(iter) == str + 1);
+          assert(err == ios.goodbit);
+          assert(v == 1);
+        }
+        {
+          v                          = -1;
+          const char str[]           = "0xg";
+          std::ios_base::iostate err = ios.goodbit;
 
-        cpp17_input_iterator<const char*> iter =
-            f.get(cpp17_input_iterator<const char*>(str), cpp17_input_iterator<const char*>(str + 3), ios, err, v);
-        assert(base(iter) == str + 2);
-        assert(err == ios.failbit);
-        assert(v == 0);
-      }
-      {
-        v                          = -1;
-        const char str[]           = "0Xg";
-        std::ios_base::iostate err = ios.goodbit;
+          cpp17_input_iterator<const char*> iter =
+              f.get(cpp17_input_iterator<const char*>(str), cpp17_input_iterator<const char*>(str + 3), ios, err, v);
+          assert(base(iter) == str + 2);
+          assert(err == ios.failbit);
+          assert(v == 0);
+        }
+        {
+          v                          = -1;
+          const char str[]           = "0Xg";
+          std::ios_base::iostate err = ios.goodbit;
 
-        cpp17_input_iterator<const char*> iter =
-            f.get(cpp17_input_iterator<const char*>(str), cpp17_input_iterator<const char*>(str + 3), ios, err, v);
-        assert(base(iter) == str + 2);
-        assert(err == ios.failbit);
-        assert(v == 0);
+          cpp17_input_iterator<const char*> iter =
+              f.get(cpp17_input_iterator<const char*>(str), cpp17_input_iterator<const char*>(str + 3), ios, err, v);
+          assert(base(iter) == str + 2);
+          assert(err == ios.failbit);
+          assert(v == 0);
+        }
       }
     }
-  }
 
   return 0;
 }

``````````

</details>


https://github.com/llvm/llvm-project/pull/170460


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