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bpo-40302: Optimize UTF-32 encoder SWAB4() by vstinner · Pull Request #19572 · python/cpython · GitHub

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bpo-40302: Optimize UTF-32 encoder SWAB4() #19572

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Merged
vstinner merged 1 commit into from
Apr 17, 2020
Conversation 3 Commits 1 Checks 0 Files changed
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bpo-40302: Optimize UTF-32 encoder SWAB4() #19572

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2 changes: 1 addition & 1 deletion Objects/stringlib/codecs.h
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Original file line number Diff line number Diff line change
Expand Up @@ -743,7 +743,7 @@ STRINGLIB(SWAB4)(STRINGLIB_CHAR ch)
return (word << 24);
#elif STRINGLIB_SIZEOF_CHAR == 2
/* high bytes are zero */
return ((word & 0x00FFu) << 24) + ((word & 0xFF00u) << 8);
return ((word & 0x00FFu) << 24) | ((word & 0xFF00u) << 8);
#else
return _Py_bswap32(word);
#endif
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