From fa47e4463ab4ee4ddc7858ab11063c7965b232ac Mon Sep 17 00:00:00 2001
From: Simon Marchi <simon.marchi@polymtl.ca>
Date: Sun, 19 Jan 2020 11:54:02 -0500
Subject: [PATCH] gdb/linux-fork: simplify one_fork_p

Unless I'm missing something, this function is a complicated way of
saying "fork_list.size () == 1".

gdb/ChangeLog:

	* linux-fork.c (one_fork_p): Simplify.
---
 gdb/ChangeLog    | 4 ++++
 gdb/linux-fork.c | 3 +--
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index abe7ab7662..f7798def4f 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2020-01-19  Simon Marchi  <simon.marchi@polymtl.ca>
+
+	* linux-fork.c (one_fork_p): Simplify.
+
 2020-01-17  Simon Marchi  <simon.marchi@efficios.com>
 
 	* top.c (struct qt_args): Remove.
diff --git a/gdb/linux-fork.c b/gdb/linux-fork.c
index 284f1985d0..357188685d 100644
--- a/gdb/linux-fork.c
+++ b/gdb/linux-fork.c
@@ -110,8 +110,7 @@ find_last_fork (void)
 static bool
 one_fork_p ()
 {
-  return (!fork_list.empty ()
-	  && &fork_list.front () == &fork_list.back ());
+  return fork_list.size () == 1;
 }
 
 /* Add a new fork to the internal fork list.  */