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Man Pages


Manual Reference Pages  -  LIBOWFAT_SCAN_UTF8 (3)

NAME

scan_utf8 - decode an unsigned integer from UTF-8 encoding

CONTENTS

Syntax
Description

SYNTAX

#include <scan.h>

size_t scan_utf8(const char *src,size_t len,uint32_t *dest);

DESCRIPTION

scan_utf8 decodes an unsigned integer in UTF-8 encoding from a memory area holding binary data. It writes the decode value in dest and returns the number of bytes it read from src.

scan_utf8 never reads more than len bytes from src. If the sequence is longer than that, or the memory area contains an invalid sequence, scan_utf8 returns 0 and does not touch dest.

The length of the longest UTF-8 sequence is 5. If the buffer is longer than that, and scan_utf8 fails, then the data was not a valid UTF-8 encoded sequence.

SEE ALSO

fmt_utf8(3)
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