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eeb20775d2
This will help C++ code that uses exceptions to be tinier. For example, this change shaves away 1000 lines of assembly code from LLVM's libcxx, which is 0.7% of all assembly instructions in the entire library.
17 lines
551 B
C
17 lines
551 B
C
#ifndef COSMOPOLITAN_LIBC_BITS_BSWAP_H_
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#define COSMOPOLITAN_LIBC_BITS_BSWAP_H_
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COSMOPOLITAN_C_START_
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libcesque uint16_t bswap_16(uint16_t) pureconst;
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libcesque uint32_t bswap_32(uint32_t) pureconst;
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libcesque uint64_t bswap_64(uint64_t) pureconst;
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#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
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#define bswap_16(x) __builtin_bswap16(x)
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#define bswap_32(x) __builtin_bswap32(x)
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#define bswap_64(x) __builtin_bswap64(x)
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#endif /* defined(__GNUC__) && !defined(__STRICT_ANSI__) */
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COSMOPOLITAN_C_END_
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#endif /* COSMOPOLITAN_LIBC_BITS_BSWAP_H_ */
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