From e2c7b61d33f75df0d106a4937ffba0006961580d Mon Sep 17 00:00:00 2001
From: Aaron Puchert <aaronpuchert@alice-dsl.net>
Date: Tue, 26 Apr 2016 22:38:11 +0200
Subject: [PATCH] Remark about strong exception safety of strcatdup

This is as good as it gets.
---
 lib/parse.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/parse.cpp b/lib/parse.cpp
index fd21a0205f..53ff8b0a2c 100644
--- a/lib/parse.cpp
+++ b/lib/parse.cpp
@@ -152,6 +152,8 @@ int copy_stream(FILE* in, FILE* out) {
 }
 
 // append to a malloc'd string
+// If reallocation fails, the pointer p remains unchanged, and the data will
+// not be freed. (strong exception safety)
 //
 int strcatdup(char*& p, char* buf) {
     char* new_p = (char*)realloc(p, strlen(p) + strlen(buf)+1);