fix: ignore overflow error if encounter invalid char

Author: Alvaro-Kothe

pandas/_libs/src/parser/tokenizer.c

@@ -1907,7 +1907,9 @@ int64_t str_to_int64(const char *p_item, int *error, char tsep) {
   int64_t number = strtoll(p, &endptr, 10);
 
   if (errno == ERANGE) {
-    *error = ERROR_OVERFLOW;
+    // Python's integers can handle pure overflow errors,
+    // but for invalid characters, try using different conversion methods.
+    *error = *endptr ? ERROR_INVALID_CHARS : ERROR_OVERFLOW;
     errno = 0;
     return 0;
   }
@@ -1967,7 +1969,9 @@ uint64_t str_to_uint64(uint_state *state, const char *p_item, int *error,
   uint64_t number = strtoull(p, &endptr, 10);
 
   if (errno == ERANGE) {
-    *error = ERROR_OVERFLOW;
+    // Python's integers can handle pure overflow errors,
+    // but for invalid characters, try using different conversion methods.
+    *error = *endptr ? ERROR_INVALID_CHARS : ERROR_OVERFLOW;
     errno = 0;
     return 0;
   }