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23 lines
763 B
C
23 lines
763 B
C
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#ifndef COSMOPOLITAN_LIBC_STR_WCWIDTH_OSX_H_
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#define COSMOPOLITAN_LIBC_STR_WCWIDTH_OSX_H_
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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extern const uint32_t kWcwidthOsx[591];
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extern const uint8_t kWcwidthOsxIndex1[136];
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extern const uint16_t kWcwidthOsxIndex2[228];
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extern const uint32_t kWcwidthOsxIndex3[917];
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static inline int _wcwidth_osx(uint32_t codePoint) {
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uint32_t a, b, c, d;
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a = kWcwidthOsxIndex1[codePoint >> 13];
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b = kWcwidthOsxIndex2[a + ((codePoint >> 9) & 0xf)];
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c = kWcwidthOsxIndex3[b + ((codePoint >> 5) & 0xf)];
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d = c + (codePoint & 0x1f);
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return (kWcwidthOsx[d >> 4] >> ((d & 0xf) << 1)) & 3;
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}
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_STR_WCWIDTH_OSX_H_ */
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