What is minimal required c++ version?

[pewsou]

I want to build version 8.2 under MacOS 10.12.6 with Xcode 8.3.3
It appears that the whole project can be built with c++14 with warnings like that:

clang++ -fPIC -std=c++14 -mmacosx-version-min=10.9 -stdlib=libc++ -O4 -DNDEBUG -I. -Iortools/gen -Wno-deprecated -DUSE_GLOP -DUSE_BOP -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include/coin -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include/coin -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include/coin -DUSE_CLP -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include/coin -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include/coin -DUSE_CBC -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -DUSE_SCIP -DNO_CONFIG_HEADER -DOR_TOOLS_MAJOR=8 -DOR_TOOLS_MINOR=2 -c ./ortools/constraint_solver/routing.cc -o objs/constraint_solver/routing.o
./ortools/constraint_solver/routing.cc:2043:22: warning: decomposition declarations are a C++1z extension [-Wc++1z-extensions]
for (const auto& [demand, positive_nodes] : nodes_by_positive_demand) {
^~~~~~~~~~~~~~~~~~~~~~~~
./ortools/constraint_solver/routing.cc:2056:13: warning: decomposition declarations are a C++1z extension [-Wc++1z-extensions]
for (auto [pickup, delivery] : implicit_pickup_deliveries) {
^~~~~~~~~~~~~~~~~~
./ortools/constraint_solver/routing.cc:4435:21: warning: decomposition declarations are a C++1z extension [-Wc++1z-extensions]
for (const auto [type, op] : operator_by_type) {
^~~~~~~~~~
./ortools/constraint_solver/routing.cc:4449:21: warning: decomposition declarations are a C++1z extension [-Wc++1z-extensions]
for (const auto [type, op] : operator_by_type) {
^~~~~~~~~~
4 warnings generated.

when I switch to c++11 then most of the package can be compiled with c++11, and then I get error like this:

$ make cc
/bin/sh: - : invalid option
/bin/sh: - : invalid option
/bin/sh: - : invalid option
clang++ -fPIC -std=c++11 -mmacosx-version-min=10.9 -stdlib=libc++ -O4 -DNDEBUG -I. -Iortools/gen -Wno-deprecated -DUSE_GLOP -DUSE_BOP -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include/coin -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include/coin -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include/coin -DUSE_CLP -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include/coin -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include/coin -DUSE_CBC -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -DUSE_SCIP -DNO_CONFIG_HEADER -DOR_TOOLS_MAJOR=8 -DOR_TOOLS_MINOR=2 -c ./ortools/linear_solver/scip_interface.cc -o objs/linear_solver/scip_interface.o
./ortools/linear_solver/scip_interface.cc:1114:7: error: no matching constructor for initialization of
'ScipConstraintHandler<operations_research::(anonymous namespace)::EmptyStruct>'
: ScipConstraintHandler(
^
./ortools/linear_solver/scip_callback.h:118:7: note: candidate constructor (the implicit copy constructor) not viable: cannot convert
initializer list argument to 'const operations_research::ScipConstraintHandler<operations_research::(anonymous
namespace)::EmptyStruct>'
class ScipConstraintHandler {
^
./ortools/linear_solver/scip_callback.h:120:12: note: candidate constructor not viable: cannot convert initializer list argument to
'const operations_research::ScipConstraintHandlerDescription'
explicit ScipConstraintHandler(
^
1 error generated.
make: *** [objs/linear_solver/scip_interface.o] Error 1

As far as I can see the this file is binding to some optimization engine. If so, why the binding needs to use higher version of c++ than c++11?
Is it possible to guarantee homogenous, c++11 or c++14 at max build support for the whole package?

[lperron]

c++17. Laurent Perron | Operations Research | ***@***.*** | (33) 1 42 68 53 00 Le jeu. 20 mai 2021 à 14:01, pewsou ***@***.***> a écrit :

…

I want to build version 8.2 under MacOS 10.12.6 with Xcode 8.3.3 It appears that the whole project can be built with c++14 with warnings like that: clang++ -fPIC -std=c++14 -mmacosx-version-min=10.9 -stdlib=libc++ -O4 -DNDEBUG -I. -Iortools/gen -Wno-deprecated -DUSE_GLOP -DUSE_BOP -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include/coin -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include/coin -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include/coin -DUSE_CLP -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include/coin -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include/coin -DUSE_CBC -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -DUSE_SCIP -DNO_CONFIG_HEADER -DOR_TOOLS_MAJOR=8 -DOR_TOOLS_MINOR=2 -c ./ortools/constraint_solver/routing.cc -o objs/constraint_solver/routing.o ./ortools/constraint_solver/routing.cc:2043:22: warning: decomposition declarations are a C++1z extension [-Wc++1z-extensions] for (const auto& [demand, positive_nodes] : nodes_by_positive_demand) { ^~~~~~~~~~~~~~~~~~~~~~~~ ./ortools/constraint_solver/routing.cc:2056:13: warning: decomposition declarations are a C++1z extension [-Wc++1z-extensions] for (auto [pickup, delivery] : implicit_pickup_deliveries) { ^~~~~~~~~~~~~~~~~~ ./ortools/constraint_solver/routing.cc:4435:21: warning: decomposition declarations are a C++1z extension [-Wc++1z-extensions] for (const auto [type, op] : operator_by_type) { ^~~~~~~~~~ ./ortools/constraint_solver/routing.cc:4449:21: warning: decomposition declarations are a C++1z extension [-Wc++1z-extensions] for (const auto [type, op] : operator_by_type) { ^~~~~~~~~~ 4 warnings generated. when I switch to c++11 then *most* of the package can be compiled with c++11, and then I get error like this: $ make cc /bin/sh: - : invalid option /bin/sh: - : invalid option /bin/sh: - : invalid option clang++ -fPIC -std=c++11 -mmacosx-version-min=10.9 -stdlib=libc++ -O4 -DNDEBUG -I. -Iortools/gen -Wno-deprecated -DUSE_GLOP -DUSE_BOP -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include/coin -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include/coin -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include/coin -DUSE_CLP -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include/coin -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include/coin -DUSE_CBC -I/Users/username/sync/progtools/or-tools-stable/dependencies/install/include -DUSE_SCIP -DNO_CONFIG_HEADER -DOR_TOOLS_MAJOR=8 -DOR_TOOLS_MINOR=2 -c ./ortools/linear_solver/scip_interface.cc -o objs/linear_solver/scip_interface.o ./ortools/linear_solver/scip_interface.cc:1114:7: error: no matching constructor for initialization of 'ScipConstraintHandler<operations_research::(anonymous namespace)::EmptyStruct>' : ScipConstraintHandler( ^ ./ortools/linear_solver/scip_callback.h:118:7: note: candidate constructor (the implicit copy constructor) not viable: cannot convert initializer list argument to 'const operations_research::ScipConstraintHandler<operations_research::(anonymous namespace)::EmptyStruct>' class ScipConstraintHandler { ^ ./ortools/linear_solver/scip_callback.h:120:12: note: candidate constructor not viable: cannot convert initializer list argument to 'const operations_research::ScipConstraintHandlerDescription' explicit ScipConstraintHandler( ^ 1 error generated. make: *** [objs/linear_solver/scip_interface.o] Error 1 As far as I can see the this file is binding to some optimization engine. If so, why the binding needs to use higher version of c++ than c++11? Is it possible to guarantee homogenous, c++11 or c++14 at max build support for the whole package? — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#2561>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACUPL3OHXPEBXZB7NBJB3RLTOT22VANCNFSM45G3C63A> .