type swapped_day_and_month

Author: MarcoGorelli

pandas/_libs/tslibs/parsing.pyx

@@ -149,6 +149,7 @@ cdef inline object _parse_delimited_date(str date_string, bint dayfirst):
         Py_ssize_t length
         int day = 1, month = 1, year
         bint can_swap = 0
+        bint swapped_day_and_month = 0
 
     buf = get_c_string_buf_and_size(date_string, &length)
     if length == 10:
@@ -177,12 +178,12 @@ cdef inline object _parse_delimited_date(str date_string, bint dayfirst):
         # date_string can't be converted to date, above format
         return None, None
 
-    swapped_day_and_month = False
+    swapped_day_and_month = 0
     if 1 <= month <= MAX_DAYS_IN_MONTH and 1 <= day <= MAX_DAYS_IN_MONTH \
             and (month <= MAX_MONTH or day <= MAX_MONTH):
         if (month > MAX_MONTH or (day <= MAX_MONTH and dayfirst)) and can_swap:
             day, month = month, day
-            swapped_day_and_month = True
+            swapped_day_and_month = 1
         if dayfirst and not swapped_day_and_month:
             warnings.warn(
                 PARSING_WARNING_MSG.format(