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.TH "al_ustr_newf" "3" "" "Allegro reference manual" ""
.SH NAME
.PP
al_ustr_newf \- Allegro 5 API
.SH SYNOPSIS
.IP
.nf
\f[C]
#include\ <allegro5/allegro.h>
ALLEGRO_USTR\ *al_ustr_newf(const\ char\ *fmt,\ ...)
\f[]
.fi
.SH DESCRIPTION
.PP
Create a new string using a printf\-style format string.
.PP
\f[I]Notes:\f[]
.PP
The "%s" specifier takes C string arguments, not ALLEGRO_USTRs.
Therefore to pass an ALLEGRO_USTR as a parameter you must use
al_cstr(3), and it must be NUL terminated.
If the string contains an embedded NUL byte everything from that byte
onwards will be ignored.
.PP
The "%c" specifier outputs a single byte, not the UTF\-8 encoding of a
code point.
Therefore it is only usable for ASCII characters (value <= 127) or if
you really mean to output byte values from 128\-\-255.
To insert the UTF\-8 encoding of a code point, encode it into a memory
buffer using al_utf8_encode(3) then use the "%s" specifier.
Remember to NUL terminate the buffer.
.SH SEE ALSO
.PP
al_ustr_new(3), al_ustr_appendf(3)
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