align_floor overloads

Synopses

Declared in <folly/lang/Align.h>

Returns the address rounded down to the given alignment.

constexpr
uintptr_t
align_floor(
    uintptr_t x,
    std::size_t alignment);

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Returns the pointer rounded down to the given alignment.

template<typename T>
T*
align_floor(
    T* x,
    std::size_t alignment);

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Return Value

x rounded down to a multiple of alignment.

Parameters

Name

Description

x

The address to align.

alignment

The alignment value; must be valid.

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