Merge pull request #977 from MacroModel/master

Fix pointer error for wincrt.h
cppfastio · Nov 27, 2024 · fca2abd · fca2abd
2 parents 30ef50b + 2c929d9
commit fca2abd
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/include/fast_io_legacy_impl/c/wincrt.h b/include/fast_io_legacy_impl/c/wincrt.h
@@ -180,6 +180,10 @@ inline void wincrt_fp_write_cold_normal_case_impl(FILE *__restrict fpp, char con
 {
 	crt_iobuf *fp{reinterpret_cast<crt_iobuf *>(fpp)};
 	::std::size_t remain{static_cast<::std::size_t>(static_cast<::std::uint_least32_t>(fp->_cnt))};
+	if (diff < remain)
+	{
+		remain = diff;
+	}
 	non_overlapped_copy_n(first, remain, fp->_ptr);
 	diff -= remain;
 	first += remain;