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Much more efficient generation of function signatures, updated docs

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This modification taps into some newer C++14 features (if present) to
generate function signatures considerably more efficiently at compile
time rather than at run time.

With this change, pybind11 binaries are now *2.1 times* smaller compared
to the Boost.Python baseline in the benchmark. Compilation times get a
nice improvement as well.

Visual Studio 2015 unfortunately doesn't implement 'constexpr' well
enough yet to support this change and uses a runtime fallback.
This commit is contained in:
Wenzel Jakob
2016-01-17 22:36:36 +01:00
parent 2ac5044a05
commit 66c9a40213
19 changed files with 731 additions and 560 deletions
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21
CMakeLists.txt
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@@ -37,8 +37,16 @@ endif()
find_package(PythonInterp ${PYTHONLIBS_VERSION_STRING} EXACT REQUIRED)
if (CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER_ID MATCHES "GNU")
# Enable C++11 mode on C++ / Clang
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
CHECK_CXX_COMPILER_FLAG("-std=c++14" HAS_CPP14_FLAG)
CHECK_CXX_COMPILER_FLAG("-std=c++11" HAS_CPP11_FLAG)
if (HAS_CPP14_FLAG)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")
elseif (HAS_CPP11_FLAG)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
else()
message(FATAL_ERROR "Unsupported compiler -- pybind11 requires C++11 support!")
endif()
# Enable link time optimization and set the default symbol
# visibility to hidden (very important to obtain small binaries)
@@ -74,14 +82,15 @@ include_directories(include)
set(PYBIND11_HEADERS
include/pybind11/cast.h
include/pybind11/common.h
include/pybind11/complex.h
include/pybind11/descr.h
include/pybind11/functional.h
include/pybind11/numpy.h
include/pybind11/operators.h
include/pybind11/pybind11.h
include/pybind11/pytypes.h
include/pybind11/typeid.h
include/pybind11/numpy.h
include/pybind11/complex.h
include/pybind11/stl.h
include/pybind11/functional.h
include/pybind11/typeid.h
)
# Create the binding library