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.TH fmt_plusminus 3
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.SH NAME
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fmt_plusminus \- write '+' or '-'
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.SH SYNTAX
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.B #include <fmt.h>
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size_t \fBfmt_plusminus\fP(char *\fIdest\fR,signed int \fIsource\fR);
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.SH DESCRIPTION
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fmt_plusminus writes '-' to \fIdest\fR if \fIsource\fR is negative, '+'
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if \fIsource\fR is positive, nothing otherwise. It returns the number
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of bytes written.
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fmt_plusminus does not append \\0.
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If \fIdest\fR equals FMT_LEN (i.e. is zero), fmt_plusminus returns the number
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of bytes it would have written.
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.SH "SEE ALSO"
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fmt_minus(3), scan_plusminus(3)
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