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	1 GRAPHEME\_IS\_UPPERCASE(3) - Library Functions Manual
	2
	3 # NAME
	4
	5 grapheme\_is\_uppercase - check if codepoint array is uppercase
	6
	7 # SYNOPSIS
	8
	9 #include <grapheme.h>
	10
	11 size\_t
	12 grapheme\_is\_uppercase(const uint\_least32\_t \str, size\_t len…
	13
	14 # DESCRIPTION
	15
	16 The
	17 grapheme\_is\_uppercase()
	18 function checks if the codepoint array
	19 str
	20 is uppercase and writes the length of the matching uppercase-sequence to…
	21 caselen,
	22 unless
	23 caselen
	24 is set to
	25 `NULL`.
	26
	27 If
	28 len
	29 is set to
	30 `SIZE_MAX`
	31 (stdint.h is already included by grapheme.h) the codepoint array
	32 src
	33 is interpreted to be NUL-terminated and processing stops when a
	34 NUL-byte is encountered.
	35
	36 For UTF-8-encoded input data
	37 grapheme\_is\_uppercase\_utf8(3)
	38 can be used instead.
	39
	40 # RETURN VALUES
	41
	42 The
	43 grapheme\_is\_uppercase()
	44 function returns
	45 `true`
	46 if the codepoint array
	47 str
	48 is uppercase, otherwise
	49 `false`.
	50
	51 # SEE ALSO
	52
	53 grapheme\_is\_uppercase\_utf8(3),
	54 libgrapheme(7)
	55
	56 # STANDARDS
	57
	58 grapheme\_is\_uppercase()
	59 is compliant with the Unicode 15.0.0 specification.
	60
	61 # AUTHORS
	62
	63 Laslo Hunhold ([[email protected]](mailto:[email protected]))
	64
	65 suckless.org - 2022-10-06