build: Remove remaining traces of boost (#1808)

Replace the last few uses of boost with robin-map (which is already a dependency for OIIO, although it is new for OSL itself) and functions in OIIO.

Signed-off-by: Chris Kulla <ckulla@gmail.com>

Author: fpsunflower

.github/workflows/analysis.yml

@@ -39,7 +39,7 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - desc: sonar gcc9/C++14 llvm13 py3.9 boost1.76 exr3.1 oiio2.3 avx2
+          - desc: sonar gcc9/C++14 llvm13 py3.9 exr3.1 oiio2.3 avx2
             nametag: static-analysis-sonar
             os: ubuntu-latest
             vfxyear: 2022

.github/workflows/ci.yml

@@ -38,7 +38,7 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - desc: gcc6/C++14 llvm9 py2.7 boost1.66 exr2.4 oiio2.3 sse2
+          - desc: gcc6/C++14 llvm9 py2.7 exr2.4 oiio2.3 sse2
             nametag: linux-vfx2020
             runner: ubuntu-latest
             container: aswftesting/ci-osl:2019-clang9
@@ -49,7 +49,7 @@ jobs:
             python_ver: 2.7
             pybind11_ver: v2.4.2
             setenvs: export CMAKE_VERSION=3.15.5
-          - desc: clang9/C++14 llvm9 oiio-release boost1.66 avx2 exr2.4 py2.7
+          - desc: clang9/C++14 llvm9 oiio-release avx2 exr2.4 py2.7
             nametag: linux-clang9-llvm9
             runner: ubuntu-20.04
             container: aswftesting/ci-osl:2019-clang9
@@ -63,7 +63,7 @@ jobs:
             # pybind11_ver: v2.9.0
             simd: avx
             setenvs: export CMAKE_VERSION=3.15.5
-          - desc: gcc6/C++14 llvm10 py3.7 boost1.70 exr2.4 oiio2.2 sse4
+          - desc: gcc6/C++14 llvm10 py3.7 exr2.4 oiio2.2 sse4
             nametag: linux-vfx2020
             runner: ubuntu-latest
             container: aswftesting/ci-osl:2020
@@ -74,7 +74,7 @@ jobs:
             pybind11_ver: v2.5.0
             simd: sse4.2
             setenvs: export CONAN_LLVM_VERSION=10.0.1
-          - desc: gcc9/C++17 llvm11 py3.7 boost1.73 exr2.5 oiio2.3 avx2 batch-b8avx2
+          - desc: gcc9/C++17 llvm11 py3.7 exr2.5 oiio2.3 avx2 batch-b8avx2
             nametag: linux-vfx2021
             runner: ubuntu-latest
             container: aswftesting/ci-osl:2021-clang11
@@ -85,7 +85,7 @@ jobs:
             pybind11_ver: v2.7.0
             simd: avx2,f16c
             batched: b8_AVX2_noFMA
-          - desc: gcc9/C++17 llvm13 py3.9 boost1.76 exr3.1 oiio-rel avx2
+          - desc: gcc9/C++17 llvm13 py3.9 exr3.1 oiio-rel avx2
             nametag: linux-vfx2022
             runner: ubuntu-latest
             container: aswftesting/ci-osl:2022-clang13
@@ -96,7 +96,7 @@ jobs:
             pybind11_ver: v2.9.0
             simd: avx2,f16c
             batched: b8_AVX2
-          - desc: clang12/C++17 llvm12 oiio-master boost1.73 exr3.1 py3.9 avx2 batch-avx512
+          - desc: clang12/C++17 llvm12 oiio-master exr3.1 py3.9 avx2 batch-avx512
             nametag: linux-clang12-llvm12-batch
             runner: ubuntu-latest
             container: aswftesting/ci-osl:2022-clang12
@@ -108,7 +108,7 @@ jobs:
             simd: avx2,f16c
             batched: b8_AVX2,b8_AVX512,b16_AVX512
             setenvs: USE_OPENVDB=0
-          - desc: icc/C++17 llvm14 py3.9 boost1.76 exr3.1 oiio-master avx2
+          - desc: icc/C++17 llvm14 py3.9 exr3.1 oiio-master avx2
             nametag: linux-icc
             runner: ubuntu-latest
             container: aswftesting/ci-osl:2022-clang14
@@ -132,7 +132,7 @@ jobs:
             setenvs: export OSL_CMAKE_FLAGS="-DSTOP_ON_WARNING=OFF -DEXTRA_CPP_ARGS=-fp-model=consistent"
                             OPENIMAGEIO_CMAKE_FLAGS=-DBUILD_FMT_VERSION=7.1.3
                             USE_OPENVDB=0
-          - desc: icx/C++17 llvm14 py3.9 boost1.76 exr3.1 oiio2.3 avx2
+          - desc: icx/C++17 llvm14 py3.9 exr3.1 oiio2.3 avx2
             nametag: linux-icx
             runner: ubuntu-latest
             container: aswftesting/ci-osl:2022-clang14
@@ -147,7 +147,7 @@ jobs:
             simd: avx2,f16c
             batched: b8_AVX2_noFMA
             setenvs: export OSL_CMAKE_FLAGS="-DSTOP_ON_WARNING=OFF" USE_OPENVDB=0
-          - desc: gcc11/C++17 llvm15 py3.10 boost1.80 exr3.1 oiio-rel avx2
+          - desc: gcc11/C++17 llvm15 py3.10 exr3.1 oiio-rel avx2
             nametag: linux-vfx2023
             runner: ubuntu-latest
             container: aswftesting/ci-osl:2023-clang15
@@ -158,7 +158,7 @@ jobs:
             pybind11_ver: v2.9.0
             simd: avx2,f16c
             batched: b8_AVX2
-          - desc: GPU Cuda11 gcc11/C++17 llvm15 py3.10 boost1.80 exr3.1 OIIO-master avx2
+          - desc: GPU Cuda11 gcc11/C++17 llvm15 py3.10 exr3.1 OIIO-master avx2
             nametag: linux-optix7-2023
             runner: ubuntu-latest
             container: aswftesting/ci-osl:2023-clang15
@@ -171,7 +171,7 @@ jobs:
             skip_tests: 1
             setenvs: export OSL_CMAKE_FLAGS="-DOSL_USE_OPTIX=1" OPTIX_VERSION=7.0
                             OPENIMAGEIO_CMAKE_FLAGS=-DBUILD_FMT_VERSION=9.1.0
-          - desc: oldest everything gcc6/C++14 llvm9 py2.7 boost1.66 oiio2.3 no-simd exr2.4
+          - desc: oldest everything gcc6/C++14 llvm9 py2.7 oiio2.3 no-simd exr2.4
             nametag: linux-oldest
             runner: ubuntu-latest
             container: aswftesting/ci-osl:2019-clang9
@@ -342,7 +342,7 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - desc: Debug gcc7/C++14 llvm9 py2.7 oiio2.3 exr2.4 sse4 boost1.65 exr2.4
+          - desc: Debug gcc7/C++14 llvm9 py2.7 oiio2.3 exr2.4 sse4 exr2.4
             nametag: linux-debug-gcc7-llvm9
             runner: ubuntu-20.04
             cxx_compiler: g++-7
@@ -356,7 +356,7 @@ jobs:
                             LLVM_VERSION=9.0.0
                             PUGIXML_VERSION=v1.9
                             CTEST_TEST_TIMEOUT=240
-          - desc: gcc10/C++17 llvm10 oiio-release boost1.65 exr2.5 avx2
+          - desc: gcc10/C++17 llvm10 oiio-release exr2.5 avx2
             nametag: linux-2021ish-gcc10-llvm10
             runner: ubuntu-20.04
             cxx_compiler: g++-10
@@ -370,7 +370,7 @@ jobs:
             setenvs: export LLVM_VERSION=10.0.0
                             OPENIMAGEIO_CMAKE_FLAGS="-DBUILD_FMT_VERSION=7.0.1"
                             PUGIXML_VERSION=v1.10
-          - desc: latest releases gcc11/C++17 llvm16 boost1.71 exr3.2 py3.9 avx2 batch-b16avx512
+          - desc: latest releases gcc11/C++17 llvm16 exr3.2 py3.9 avx2 batch-b16avx512
             nametag: linux-latest-releases
             runner: ubuntu-22.04
             cxx_compiler: g++-11
@@ -386,7 +386,7 @@ jobs:
                             LLVM_DISTRO_NAME=ubuntu-22.04
                             OPENCOLORIO_VERSION=v2.2.0
                             PUGIXML_VERSION=v1.13
-          - desc: bleeding edge gcc12/C++17 llvm17 oiio/ocio/exr/pybind-master boost1.71 py3.10 avx2 batch-b16avx512
+          - desc: bleeding edge gcc12/C++17 llvm17 oiio/ocio/exr/pybind-master py3.10 avx2 batch-b16avx512
             nametag: linux-bleeding-edge
             runner: ubuntu-22.04
             cxx_compiler: g++-12
@@ -402,7 +402,7 @@ jobs:
                             LLVM_DISTRO_NAME=ubuntu-22.04
                             OPENCOLORIO_VERSION=main
                             PUGIXML_VERSION=master
-          - desc: clang14/C++17 llvm14 boost1.71 exr3.1 py3.8 avx2 batch-b16avx512
+          - desc: clang14/C++17 llvm14 exr3.1 py3.8 avx2 batch-b16avx512
             nametag: linux-latest-releases-clang
             runner: ubuntu-20.04
             cxx_compiler: clang++

CONTRIBUTING.md

@@ -263,7 +263,7 @@ Prefer C++11 `std` rather than Boost or other third party libraries, where
 both can do the same task.
 
 If you see a third party library already used as a dependency (such as OIIO,
-Boost, Imath, or LLVM), feel free to any of its public features in OSL
+Imath, or LLVM), feel free to any of its public features in OSL
 internals (provided those features are present in the minimum version of
 that library that we support).
 

INSTALL.md

@@ -55,7 +55,6 @@ NEW or CHANGED dependencies since the last major release are **bold**.
     * [Cuda](https://developer.nvidia.com/cuda-downloads) 9.0 or higher. It is
       recommended that you use 11.0 or higher.
 
-* [Boost](https://www.boost.org) 1.55 or newer (tested through boost 1.83)
 * [Ilmbase or Imath](https://github.com/AcademySoftwareFoundation/Imath) 2.4
    or newer (recommended: 3.1 or higher; tested through 3.2)
    NOTE: It is likely that 1.13 is the last release that will support
@@ -100,7 +99,7 @@ Here are the steps to check out, build, and test the OSL distribution:
 
    Note: OSL uses 'CMake' for its cross-platform build system.  But for
    simplicity, we have made a "make wrapper" around it, so that by just
-   typing 'make' everything will build.  Type 'make help' for other 
+   typing 'make' everything will build.  Type 'make help' for other
    options, and note that 'make nuke' will blow everything away for the
    freshest possible compile.
 
@@ -130,7 +129,7 @@ Here are the steps to check out, build, and test the OSL distribution:
    test suite with:
 
         make test
-        
+
 Troubleshooting
 ----------------
 

Makefile

@@ -369,7 +369,6 @@ help:
 	@echo "      if found. And you can hint where to find it with Foo_ROOT=path"
 	@echo "      Note that it is case sensitive!"
 	@echo "  Finding and Using Dependencies:"
-	@echo "      BOOST_ROOT=path          Custom Boost installation"
 	@echo "      USE_QT=0                 Skip anything that needs Qt"
 	@echo "  LLVM-related options:"
 	@echo "      LLVM_VERSION=12.0        Specify which LLVM version to use"

README.md

@@ -567,7 +567,6 @@ The OSL implementation depends upon several other open source packages,
 all with compatible licenses:
 
 * [OpenImageIO](http://www.openimageio.org)
-* [Boost](http://www.boost.org)
 * [IlmBase](http://www.openexr.com)
 * [LLVM Compiler Infrastructure](http://llvm.org)
 

doc/build_install/windows/Readme.md

@@ -64,8 +64,6 @@ My System and Setup Configuration:
 
 **OpenShadingLanguage:** cloned from latest master branch
 
-**Boost:** 1.70
-
 **LLVM:** 11.0.0 C++ is set on C++14
 
 **CLANG:** 11.0.0 C++ is set on C++14
@@ -152,9 +150,9 @@ Open `doc/build_install/windows/osl_env_vars_setup.bat` in your editor and edit
 
 The main build launcher is here `doc/build_install/windows/build_osl.bat`
 
-For now we can not assign pre-installed llvm or boost so we have to build all together at once and put all of them in one directory.
+For now we can not assign pre-installed llvm so we have to build all together at once and put all of them in one directory.
 
-I am working on it to see how we can use external llvm and boost installation without error.
+I am working on it to see how we can use external llvm installation without error.
 
 **Table of flags we can assign to the command**
 
@@ -163,7 +161,6 @@ I am working on it to see how we can use external llvm and boost installation wi
 | --osl         | Implemented     | Yes     |
 | --python      | Implemented     | Yes     |
 | --zlib        | Implemented     | Yes     |
-| --boost       | Implemented     | Yes     |
 | --llvm        | Implemented     | Yes     |
 | --clang       | Implemented     | Yes     |
 | --pugixml     | Implemented     | Yes     |

doc/build_install/windows/build_osl.bat

@@ -14,17 +14,17 @@ cls
 
 set OSL_INPUT_CONFIG=%1
 
-if "%OSL_INPUT_CONFIG%" equ "debug" ( 
+if "%OSL_INPUT_CONFIG%" equ "debug" (
   set OSL_LOCATION_DIR=osl_debug
   set OSL_BUILD_CONFIG=--debug
   goto RUN
 )
-if "%OSL_INPUT_CONFIG%" equ "release" ( 
+if "%OSL_INPUT_CONFIG%" equ "release" (
   set OSL_LOCATION_DIR=osl_release
   set OSL_BUILD_CONFIG=
   goto RUN
 )
-if "%OSL_INPUT_CONFIG%" equ "" ( 
+if "%OSL_INPUT_CONFIG%" equ "" (
   echo --= Enter debug or release as argument
   exit
 )
@@ -44,5 +44,5 @@ call %VCVARS_LOCATION%/vcvarsall.bat x64
 
 cls
 
-python build_osl.py --generator "Visual Studio 16 2019" --osl --python %OSL_BUILD_CONFIG% --zlib --boost --llvm --clang --pugixml --openexr --tiff --jpeg --png --flex --bison --opencolorio --openimageio --libraw --pybind11 %BASE_LOCATION%/%OSL_LOCATION_DIR%
+python build_osl.py --generator "Visual Studio 16 2019" --osl --python %OSL_BUILD_CONFIG% --zlib --llvm --clang --pugixml --openexr --tiff --jpeg --png --flex --bison --opencolorio --openimageio --libraw --pybind11 %BASE_LOCATION%/%OSL_LOCATION_DIR%