use c++11 std::align from <memory> (#2026)

* use c++11 std::align from <memory>

* for Ubuntu, use gcc5 instead of 4.8

* use travis to set gcc to 5

eval

and sudo

* use eval in .travis.yml

* use gcc-8

* replace precise with trusty llvm toolchain, because we have been using trusty for awhile now

* push things to matrix, so we can support multiple releases if we want

* we should not be allowing for failures, we are ready to start trusting clang and its analyzer

* scan-build was pushed to another package

* use gcc-8 still but wrap in scan-build

* travis.yml cleanup, have output of scripts go to stdout, make search for substring a regex

use double []

fix missing ,

use bash to use regex

black spaces matter

* set human readable names for our various builds, split out our static analysis between openmw and openmw-cs

* test if not set, then set otherwise ignore

* use quotes

* do not eval it, set it in travis env

* no more &&

* what does clang7 have to say?

* use sourceline for now

* use clang-7 instead of clang-7.0

* yes, llvm-toolchain-trusty-7 not llvm-toolchain-trusty-7.0

* for static analysis, openmw is compiled and checked on its own while openmw-cs is build with all the rest. this might change in the future.

and actually do it the other way around

.travis.yml

@@ -1,10 +1,4 @@
-os:
- - linux
- - osx
-osx_image: xcode9.4
 language: cpp
-sudo: required
-dist: trusty
 branches:
   only:
     - master
@@ -20,16 +14,16 @@ addons:
     sources:
       - sourceline: 'ppa:openmw/openmw'
       - ubuntu-toolchain-r-test
-      - llvm-toolchain-precise-3.6
+      - llvm-toolchain-trusty-7
     packages: [
       # Dev
-      cmake, clang-3.6, libunshield-dev, libtinyxml-dev,
+      cmake, clang-7, clang-tools-7, gcc-8, g++-8,
       # Boost
       libboost-filesystem-dev, libboost-program-options-dev, libboost-system-dev,
       # FFmpeg
       libavcodec-dev, libavformat-dev, libavutil-dev, libswscale-dev,
-      # Audio & Video
-      libsdl2-dev, libqt4-dev, libopenal-dev,
+      # Audio, Video and Misc. deps
+      libsdl2-dev, libqt4-dev, libopenal-dev, libunshield-dev, libtinyxml-dev,
       # The other ones from OpenMW ppa
       libbullet-dev, libswresample-dev, libopenscenegraph-3.4-dev, libmygui-dev
     ]
@@ -44,15 +38,41 @@ addons:
     branch_pattern: coverity_scan
 matrix:
   include:
-    - os: linux
+    - name: OpenMW (all) on MacOS xcode9.4
+      os: osx
+      osx_image: xcode9.4
+    - name: OpenMW (all) on Ubuntu Trusty GCC-8
+      os: linux
+      dist: trusty
+      sudo: required
+      env:
+        - MATRIX_EVAL="CC=gcc-8 && CXX=g++-8"
+    - name: OpenMW (openmw) on Ubuntu Trusty Clang-7 with Static Analysis
+      os: linux
+      dist: trusty
+      sudo: required
+      env:
+        - MATRIX_EVAL="CC=clang-7 && CXX=clang++-7"
+        - ANALYZE="scan-build-7 --use-cc clang-7 --use-c++ clang++-7"
+        - BUILD_OPENMW_CS="OFF"
+      compiler: clang
+    - name: OpenMW (openmw-cs) on Ubuntu Trusty Clang-7 with Static Analysis
+      os: linux
+      dist: trusty
+      sudo: required
       env:
-        ANALYZE="scan-build-3.6 --use-cc clang-3.6 --use-c++ clang++-3.6 "
+      - MATRIX_EVAL="CC=clang-7 && CXX=clang++-7"
+      - ANALYZE="scan-build-7 --use-cc clang-7 --use-c++ clang++-7"
+      - BUILD_OPENMW="OFF"
       compiler: clang
-  allow_failures:
-    - env: ANALYZE="scan-build-3.6 --use-cc clang-3.6 --use-c++ clang++-3.6 "
+#   allow_failures:
+#    - name: OpenMW (openmw) on Ubuntu Trusty Clang-7 with Static Analysis
 
-before_install: ./CI/before_install.${TRAVIS_OS_NAME}.sh
-before_script: ./CI/before_script.${TRAVIS_OS_NAME}.sh
+before_install:
+    - if [ "${TRAVIS_OS_NAME}" = "linux" ]; then eval "${MATRIX_EVAL}"; fi
+    - ./CI/before_install.${TRAVIS_OS_NAME}.sh
+before_script:
+    - ./CI/before_script.${TRAVIS_OS_NAME}.sh
 script:
  - cd ./build
  - if [ "$COVERITY_SCAN_BRANCH" != 1 ]; then ${ANALYZE} make -j3; fi

CI/before_install.linux.sh

@@ -1,3 +1,4 @@
-#!/bin/sh -e
-sudo ln -s /usr/bin/clang-3.6 /usr/local/bin/clang
-sudo ln -s /usr/bin/clang++-3.6 /usr/local/bin/clang++
+#!/bin/bash -ex
+
+sudo ln -sf /usr/bin/clang-7 /usr/local/bin/clang
+sudo ln -sf /usr/bin/clang++-7 /usr/local/bin/clang++

CI/before_script.linux.sh

@@ -1,4 +1,4 @@
-#!/bin/sh -e
+#!/bin/bash -ex
 
 free -m
 
@@ -8,8 +8,22 @@ GOOGLETEST_DIR="$(pwd)/googletest/build"
 mkdir build
 cd build
 export CODE_COVERAGE=1
-if [ "${CC}" = "clang" ]; then export CODE_COVERAGE=0; fi
+
+if [[ "${CC}" =~ "clang" ]]; then export CODE_COVERAGE=0; fi
+if [[ -z "${BUILD_OPENMW}" ]]; then export BUILD_OPENMW=ON; fi
+if [[ -z "${BUILD_OPENMW_CS}" ]]; then export BUILD_OPENMW_CS=ON; fi
+
 ${ANALYZE} cmake \
+    -DBUILD_OPENMW=${BUILD_OPENMW} \
+    -DBUILD_OPENCS=${BUILD_OPENMW_CS} \
+    -DBUILD_LAUNCHER=${BUILD_OPENMW_CS} \
+    -DBUILD_BSATOOL=${BUILD_OPENMW_CS} \
+    -DBUILD_ESMTOOL=${BUILD_OPENMW_CS} \
+    -DBUILD_MWINIIMPORTER=${BUILD_OPENMW_CS} \
+    -DBUILD_ESSIMPORTER=${BUILD_OPENMW_CS} \
+    -DBUILD_WIZARD=${BUILD_OPENMW_CS} \
+    -DBUILD_NIFTEST=${BUILD_OPENMW_CS} \
+    -DBUILD_MYGUI_PLUGIN=${BUILD_OPENMW_CS} \
     -DBUILD_WITH_CODE_COVERAGE=${CODE_COVERAGE} \
     -DBUILD_UNITTESTS=1 \
     -DCMAKE_INSTALL_PREFIX=/usr \

components/detournavigator/recastallocutils.hpp

@@ -86,17 +86,6 @@ namespace DetourNavigator
         return static_cast<std::size_t*>(ptr) + 1;
     }
 
-    // TODO: use std::align
-    inline void* align(std::size_t align, std::size_t size, void*& ptr, std::size_t& space) noexcept
-    {
-        const auto intptr = reinterpret_cast<std::uintptr_t>(ptr);
-        const auto aligned = (intptr - 1u + align) & - align;
-        const auto diff = aligned - intptr;
-        if ((size + diff) > space)
-            return nullptr;
-        space -= diff;
-        return ptr = reinterpret_cast<void*>(aligned);
-    }
 }
 
 #endif

components/detournavigator/recasttempallocator.hpp

@@ -21,7 +21,7 @@ namespace DetourNavigator
             std::size_t space = mStack.size() - getUsedSize();
             void* top = mTop;
             const auto itemSize = 2 * sizeof(std::size_t) + size;
-            if (rcUnlikely(!align(sizeof(std::size_t), itemSize, top, space)))
+            if (rcUnlikely(!std::align(sizeof(std::size_t), itemSize, top, space)))
                 return nullptr;
             setTempPtrBufferType(top, BufferType_temp);
             setTempPtrPrev(top, mPrev);