systemtap/gcc12-c-compatibility-tweak-use-lambdas-instead-of-ptr_fun.patch

From: Jonathan Wakely <jwakely.gcc@gmail.com>
Date: Tue, 18 Jan 2022 15:52:18 -0500
Subject: gcc12 c++ compatibility tweak: use lambdas instead of ptr_fun<>
Git-repo: git://sourceware.org/git/systemtap.git
Git-commit: 56c498d95c4749f15980da73b4933e7443b3f26c
References: bsc#1196583

Even while stap is a c++11 code base, such cleanups make code
nicer to look at.

Signed-off-by: Tony Jones <tonyj@suse.de>
---
 util.cxx | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/util.cxx b/util.cxx
index c20f76003..e9286eca3 100644
--- a/util.cxx
+++ b/util.cxx
@@ -1763,7 +1763,7 @@ ltrim(std::string &s)
 {
   s.erase(s.begin(),
 	  std::find_if(s.begin(), s.end(),
-		       std::not1(std::ptr_fun<int, int>(std::isspace))));
+                       [](unsigned char c) { return !std::isspace(c); }));
 }
 
 // trim from end (in place)
@@ -1771,7 +1771,7 @@ void
 rtrim(std::string &s)
 {
   s.erase(std::find_if(s.rbegin(), s.rend(),
-	  std::not1(std::ptr_fun<int, int>(std::isspace))).base(), s.end());
+                       [](unsigned char c) { return !std::isspace(c); }).base(), s.end());
 }
 
 // trim from both ends (in place)