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.TH fmt_str 3
.SH NAME
fmt_str \- write an ASCII string
.SH SYNTAX
.B #include <libowfat/fmt.h>
size_t \fBfmt_str\fP(char *\fIdest\fR,const char *\fIsource\fR);
.SH DESCRIPTION
fmt_str copies all leading nonzero bytes from \fIsource\fR to \fIdest\fR
and returns the number of bytes it copied.
fmt_str does not append \\0.
If \fIdest\fR equals FMT_LEN (i.e. is zero), fmt_str returns the number
of bytes it would have written, i.e. the number of leading nonzero bytes
of \fIsource\fR.
.SH "SEE ALSO"
strcpy(3)