moved to nullptr, removed c++98-compat warning suppressions for clang (also long-long and 0 as null for gcc/clang)
diff --git a/.travis.yml b/.travis.yml
index 6ec4e84..171bcf4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -390,7 +390,7 @@
# clang-tidy
cd scripts/playground
cmake ${CMAKE_OPTIONS_GLOBAL} ${CMAKE_OPTIONS} -DCMAKE_CXX_COMPILER=${CXX} . || exit 1
- clang-tidy-4.0 -p=. *.cpp -header-filter=.* -warnings-as-errors=* -checks='*,-misc-misplaced-widening-cast,-misc-macro-parentheses,-misc-definitions-in-headers,-misc-unused-parameters,-llvm-header-guard,-llvm-include-order,-google-readability-braces-around-statements,-google-runtime-references,-google-readability-todo,-google-build-using-namespace,-google-explicit-constructor,-cert-err58-cpp,-cppcoreguidelines-pro-type-vararg,-cppcoreguidelines-pro-bounds-pointer-arithmetic,-cppcoreguidelines-pro-bounds-array-to-pointer-decay,-cppcoreguidelines-special-member-functions,-cppcoreguidelines-pro-type-reinterpret-cast,-cppcoreguidelines-pro-bounds-constant-array-index,-cppcoreguidelines-pro-type-member-init,-cppcoreguidelines-pro-type-union-access,-clang-analyzer-security.insecureAPI.strcpy,-modernize-loop-convert,-modernize-use-auto,-modernize-use-bool-literals,-readability-braces-around-statements,-readability-named-parameter,-readability-else-after-return,-readability-redundant-declaration,-readability-implicit-bool-cast,-clang-diagnostic-variadic-macros' || exit 1
+ clang-tidy-4.0 -std=c++11 -p=. *.cpp -header-filter=.* -warnings-as-errors=* -checks='*,-misc-misplaced-widening-cast,-misc-macro-parentheses,-misc-definitions-in-headers,-misc-unused-parameters,-llvm-header-guard,-llvm-include-order,-google-readability-braces-around-statements,-google-runtime-references,-google-readability-todo,-google-build-using-namespace,-google-explicit-constructor,-cert-err58-cpp,-cppcoreguidelines-pro-type-vararg,-cppcoreguidelines-pro-bounds-pointer-arithmetic,-cppcoreguidelines-pro-bounds-array-to-pointer-decay,-cppcoreguidelines-special-member-functions,-cppcoreguidelines-pro-type-reinterpret-cast,-cppcoreguidelines-pro-bounds-constant-array-index,-cppcoreguidelines-pro-type-member-init,-cppcoreguidelines-pro-type-union-access,-clang-analyzer-security.insecureAPI.strcpy,-modernize-loop-convert,-modernize-use-auto,-modernize-use-bool-literals,-readability-braces-around-statements,-readability-named-parameter,-readability-else-after-return,-readability-redundant-declaration,-readability-implicit-bool-cast,-clang-diagnostic-variadic-macros,-clang-diagnostic-c++11-compat' || exit 1
# do not continue with other build configurations after that
exit