new c++ version in clang

Author: CamJN

Makefile-variables

@@ -29,9 +29,9 @@ COMPILER_VERSION		:= $(shell $(CXX) --version | grep version | grep -o -m 1 "[0-
 COMPILER_VERSION_NUMBER		:= $(shell echo $(COMPILER_VERSION) | sed -e 's/\.\([0-9][0-9]\)/\1/g' -e 's/\.\([0-9]\)/0\1/g' -e 's/^[0-9]\{3,4\}$$/&00/')
 CLANG_13_OR_MORE		:= $(shell expr $(COMPILER_VERSION_NUMBER) \>= 130106)
 ifneq ($(CLANG_13_OR_MORE),0)
-# supported: c++11, c++14, c++17, c++20
-# future: c++2b
-CXXFLAGS ?= --std=c++20 -O3 -Iinclude $(shell pkg-config --cflags getargv)
+# supported: c++11, c++14, c++17, c++20, c++23
+# future: c++2c
+CXXFLAGS ?= --std=c++23 -O3 -Iinclude $(shell pkg-config --cflags getargv)
 else
 CXXFLAGS ?= --std=c++17 -O3 -Iinclude $(shell pkg-config --cflags getargv)
 endif

test/Makefile

@@ -14,9 +14,9 @@ COMPILER_VERSION		:= $(shell $(CXX) --version | grep version | grep -o -m 1 "[0-
 COMPILER_VERSION_NUMBER		:= $(shell echo $(COMPILER_VERSION) | sed -e 's/\.\([0-9][0-9]\)/\1/g' -e 's/\.\([0-9]\)/0\1/g' -e 's/^[0-9]\{3,4\}$$/&00/')
 CLANG_13_OR_MORE		:= $(shell expr $(COMPILER_VERSION_NUMBER) \>= 130106)
 ifneq ($(CLANG_13_OR_MORE),0)
-CXXFLAGS                := --std=c++20
-# supported: c++11, c++14, c++17, c++20
-# future: c++2b
+CXXFLAGS                := --std=c++23
+# supported: c++11, c++14, c++17, c++20, c++23
+# future: c++2c
 else
 CXXFLAGS                := --std=c++17
 endif