34 lines
1.4 KiB
C
34 lines
1.4 KiB
C
#ifndef COSMOPOLITAN_LIBC_INTERNAL_OUTOFSIGHT_H_
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#define COSMOPOLITAN_LIBC_INTERNAL_OUTOFSIGHT_H_
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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#if 0
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/*───────────────────────────────────────────────────────────────────────────│─╗
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│ cosmopolitan § standard library » little concerns ─╬─│┼
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╚────────────────────────────────────────────────────────────────────────────│*/
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#endif
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#if 0
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/**
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* Hardware-Accellerated 32-Bit Castagnoli Cyclic Redundancy Check.
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* Introduced w/ Intel Nehalem c. 2008 & AMD Bulldozer c. 2011
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* @see crc32c()
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*/
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#endif
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#define __crc32c(out_Gdqp, in_Eb_Evqp) \
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asm("crc32\t%1,%0" : "+r"(*(r)) : "rm"(p))
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#if 0
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/**
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* Works around GCC's poorly implemented -Waddress feature.
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* Used for the well-known divide-by-zero static assertion.
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*/
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#endif
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#define __NOTNOT(ADDR) ((uintptr_t)(ADDR) != (uintptr_t)NULL ? 1 : 0)
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#define __LITERALLY_STRING(S) (typeof(&S[0]))((uintptr_t)(S) / __NOTNOT(S))
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_INTERNAL_OUTOFSIGHT_H_ */
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