73 lines
3.4 KiB
C++
73 lines
3.4 KiB
C++
// vim:fileencoding=utf-8:foldmethod=marker
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#ifndef MISC_UTILS_H
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#define MISC_UTILS_H
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#include "../aliases/aliases.h"
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#ifdef WP_PLATFORM_CPP
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BEGIN_C_LINKAGE
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#endif // !WP_PLATFORM_CPP
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#define KiB(SIZE) (((u64)SIZE) << 10)
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#define MiB(SIZE) (((u64)SIZE) << 20)
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#define GiB(SIZE) (((u64)SIZE) << 30)
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#define TiB(SIZE) (((u64)SIZE) << 40)
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#define PiB(SIZE) (((u64)SIZE) << 50)
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#define EiB(SIZE) (((u64)SIZE) << 60)
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#define KB(SIZE) (((u64)SIZE) * 1000llu)
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#define MB(SIZE) (KB(SIZE) * 1000llu)
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#define GB(SIZE) (MB(SIZE) * 1000llu)
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#define TB(SIZE) (GB(SIZE) * 1000llu)
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#define PB(SIZE) (TB(SIZE) * 1000llu)
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#define EB(SIZE) (PB(SIZE) * 1000llu)
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#define wpMiscUtilsReservePadding(SIZE) u8 reserved_padding[sizeof(void *) - ((SIZE) % sizeof(void *))]
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#define U64_RSHIFT_OR_1(X) (((u64)X) | (((u64)X) >> 1))
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#define U64_RSHIFT_OR_2(X) (((u64)X) | (((u64)X) >> 2))
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#define U64_RSHIFT_OR_4(X) (((u64)X) | (((u64)X) >> 4))
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#define U64_RSHIFT_OR_8(X) (((u64)X) | (((u64)X) >> 8))
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#define U64_RSHIFT_OR_16(X) (((u64)X) | (((u64)X) >> 16))
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#define U64_RSHIFT_OR_32(X) (((u64)X) | (((u64)X) >> 32))
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#define wpMiscUtilsU64RoundUpPow2(X) ( \
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( \
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U64_RSHIFT_OR_32( \
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U64_RSHIFT_OR_16( \
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U64_RSHIFT_OR_8( \
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U64_RSHIFT_OR_4( \
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U64_RSHIFT_OR_2( \
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U64_RSHIFT_OR_1(X - 1) \
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) \
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) \
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) \
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) \
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) \
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) + 1 \
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)
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#define wpMiscUtilsIsPowerOfTwo(NUM) ((NUM & (NUM - 1)) == 0)
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#define wpMiscUtilsOffsetPointer(PTR, OFFSET) ((void *)((uptr)(PTR) + (OFFSET)))
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#define wpMiscUtilsSwap(TYPE, A_PTR, B_PTR) do { \
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TYPE tmp = *(A_PTR); \
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*(A_PTR) = *(B_PTR); \
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*(B_PTR) = tmp; \
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} while(0)
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wp_intern inline u64 wpMiscUtilsRotl64(u64 x, i8 rotation) {
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return (x << rotation) | (x >> (64 - rotation));
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}
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#ifdef WP_PLATFORM_CPP
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END_C_LINKAGE
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#include <tuple>
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#define wpMiscUtilsVaArgsCount(T, ...) (std::tuple_size<decltype(std::make_tuple(__VA_ARGS__))>::value)
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#else
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#define wpMiscUtilsVaArgsCount(T, ...) (sizeof((T[]){__VA_ARGS__})/sizeof(T))
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#endif // !WP_PLATFORM_CPP
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#endif // !MISC_UTILS_H
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