From: Ghjuvan Lacambre <lacambre@adacore.com>
Date: Thu, 8 Dec 2022 08:58:28 +0000 (+0100)
Subject: ada: output.adb: fix newline being inserted when buffer is full
X-Git-Tag: basepoints/gcc-14~2235
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=238ff612f2fd88372c585753dd2faa73cb94cbb5;p=thirdparty%2Fgcc.git

ada: output.adb: fix newline being inserted when buffer is full

Before this commit, when GNAT needed to emit lines longer than
the buffer, it accidentally inserted a newline in its output when
attempting to flush its buffer.

We fix this by using Flush_Buffer instead of Write_Eol in Write_Char.

gcc/ada/

	* output.adb (Write_Buffer): Use Flush_Buffer instead of Write_Eol.
---

diff --git a/gcc/ada/output.adb b/gcc/ada/output.adb
index 33d027ded8e3..497643d17ecc 100644
--- a/gcc/ada/output.adb
+++ b/gcc/ada/output.adb
@@ -422,10 +422,10 @@ package body Output is
 
    procedure Write_Char (C : Character) is
    begin
-      pragma Assert (Next_Col in Buffer'Range);
-      if Next_Col = Buffer'Length then
-         Write_Eol;
+      if Next_Col > Buffer'Length then
+         Flush_Buffer;
       end if;
+      pragma Assert (Next_Col in Buffer'Range);
 
       if C = ASCII.LF then
          Write_Eol;