LibC: fflush stdout when reading from stdin

This is the *intended behaviour* per ISO C specification
2025-08-05 03:06:40 +03:00 · 2025-08-05 03:06:40 +03:00 · 46dd411273
parent 2e2ee11452
commit 46dd411273
1 changed files with 3 additions and 0 deletions
--- a/userspace/libraries/LibC/stdio.cpp
+++ b/userspace/libraries/LibC/stdio.cpp
@ -542,6 +542,9 @@ int getc_unlocked(FILE* file)
 	if (file->eof)
 		return EOF;

+	if (file == stdin && file->buffer_type == _IOLBF && stdout->buffer_type == _IOLBF && stdout->buffer_idx)
+		fflush(stdout);
+
 	// read characters from ungetc
 	if (file->unget_buf_idx)
 	{