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.TH fmt_xlong 3
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.SH NAME
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fmt_xlong \- write a hexadecimal ASCII representation of an unsigned long integer
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.SH SYNTAX
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.B #include <libowfat/fmt.h>
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size_t \fBfmt_xlong\fP(char *\fIdest\fR,unsigned long \fIsource\fR);
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.SH DESCRIPTION
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fmt_xlong writes an ASCII representation ('0' to '9' and 'a' to 'f',
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base 16) of \fIsource\fR to \fIdest\fR and returns the number of bytes
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written.
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fmt_xlong does not append \\0.
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If \fIdest\fR equals FMT_LEN (i.e. is zero), fmt_xlong returns the
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number of bytes it would have written.
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For convenience, fmt.h defines the integer FMT_XLONG to be big enough to
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contain every possible fmt_xlong output plus \\0.
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.SH "SEE ALSO"
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scan_xlong(3)
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