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[chore/headers-interface-defines] feat: add PYBIND11_NOINLINE_ATTR and PYBIND11_INLINE macros #6131

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henryiii wants to merge 1 commit into from
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[chore/headers-interface-defines] feat: add PYBIND11_NOINLINE_ATTR and PYBIND11_INLINE macros #6131

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17 changes: 14 additions & 3 deletions include/pybind11/detail/common.h
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Original file line number Diff line number Diff line change
Expand Up @@ -160,11 +160,22 @@
// In contrast, FORWARD DECLARATIONS should never use this macro:
// https://stackoverflow.com/questions/9317473/forward-declaration-of-inline-functions
#if defined(PYBIND11_NOINLINE_DISABLED) // Option for maximum portability and experimentation.
# define PYBIND11_NOINLINE inline
# define PYBIND11_NOINLINE_ATTR
#elif defined(_MSC_VER)
# define PYBIND11_NOINLINE __declspec(noinline) inline
# define PYBIND11_NOINLINE_ATTR __declspec(noinline)
#else
# define PYBIND11_NOINLINE __attribute__((noinline)) inline
# define PYBIND11_NOINLINE_ATTR __attribute__((noinline))
#endif
#define PYBIND11_NOINLINE PYBIND11_NOINLINE_ATTR inline

// PYBIND11_INLINE marks function definitions that live in a `-inl.h` file. It is `inline` in
// the default header-only mode. Defining PYBIND11_PRECOMPILED makes it empty: the definitions
// are then compiled once (into a static library linked into each extension module) and the
// headers only provide declarations.
#if defined(PYBIND11_PRECOMPILED)
# define PYBIND11_INLINE
#else
# define PYBIND11_INLINE inline
#endif

#if defined(_MSC_VER)
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