If %I is used without %p, mark the ambiguity with failbit

2025-08-03 20:54:27 +02:00 · 2021-04-16 15:15:45 -04:00
parent ac6ca2a095
commit 2ef74cb41a
1 changed files with 2 additions and 0 deletions
--- a/include/date/date.h
+++ b/include/date/date.h
@@ -7845,6 +7845,8 @@ from_stream(std::basic_istream<CharT, Traits>& is, const CharT* fmt,
                            goto broken;
                        }
                    }
+                    else  // I is ambiguous, AM or PM?
+                        goto broken;
                }
            }
            if (H != not_a_hour)