locale.html

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is separated by a space (defined by <CODE>int_curr_symbol[3]</CODE>)
or by no space from the value
for negative monetary values:</P>

<UL>
<LI>A value of 0 indicates that no space separates symbol and value.

<LI>A value of 1 indicates that a space separates symbol and value.
(<CODE>0</CODE>)
</UL>

<P><B><A NAME="int_n_sign_posn"><CODE>int_n_sign_posn</CODE></A></B>
-- the format for negative international monetary values:</P>

<UL>
<LI>A value of 0 indicates that parentheses surround the value and the
currency symbol.

<LI>A value of 1 indicates that the negative sign precedes the value and the
currency symbol.

<LI>A value of 2 indicates that the negative sign follows the value and the
currency_symbol.

<LI>A value of 3 indicates that the negative sign immediately precedes the
currency symbol.

<LI>A value of 4 indicates that the negative sign immediately follows the
currency_symbol. (<CODE>4</CODE>)
</UL>

<P><B><A NAME="int_p_cs_precedes"><CODE>int_p_cs_precedes</CODE></A></B>
-- whether the international currency symbol precedes
or follows the value for positive monetary values:</P>

<UL>
<LI>A value of 0 indicates that the symbol follows the value.

<LI>A value of 1 indicates that the symbol precedes the value.
(<CODE>1</CODE>)
</UL>

<P><B><A NAME="int_p_sep_by_space"><CODE>int_p_sep_by_space</CODE></A></B>
-- whether the international currency symbol is separated
by a space (defined by <CODE>int_curr_symbol[3]</CODE>)
or by no space from the value for positive monetary values:</P>

<UL>
<LI>A value of 0 indicates that no space separates symbol and value.

<LI>A value of 1 indicates that a space separates symbol and value.
(<CODE>0</CODE>)
</UL>

<P><B><A NAME="int_p_sign_posn"><CODE>int_p_sign_posn</CODE></A></B>
-- the format for positive international monetary values:</P>

<UL>
<LI>A value of 0 indicates that parentheses surround the value and
the currency symbol.

<LI>A value of 1 indicates that the negative sign precedes the value
and the currency symbol.

<LI>A value of 2 indicates that the negative sign follows the value
and the currency symbol.

<LI>A value of 3 indicates that the negative sign immediately precedes
the currency symbol.

<LI>A value of 4 indicates that the negative sign immediately follows
the currency symbol. (<CODE>4</CODE>)
</UL>

<P><B><A NAME="n_cs_precedes"><CODE>n_cs_precedes</CODE></A></B>
-- whether the currency symbol
precedes or follows the value for negative monetary values:</P>

<UL>
<LI>A value of 0 indicates that the symbol follows the value.

<LI>A value of 1 indicates that the symbol precedes the value.
(<CODE>1</CODE>)
</UL>

<P><B><A NAME="n_sep_by_space"><CODE>n_sep_by_space</CODE></A></B>
-- whether the currency symbol
is separated by a space or by no space from the value
for negative monetary values:</P>

<UL>
<LI>A value of 0 indicates that no space separates symbol and value.

<LI>A value of 1 indicates that a space separates symbol and value.
(<CODE>0</CODE>)
</UL>

<P><B><A NAME="n_sign_posn"><CODE>n_sign_posn</CODE></A></B>
-- the format for negative monetary values:</P>

<UL>
<LI>A value of 0 indicates that parentheses surround the value and the
currency symbol.

<LI>A value of 1 indicates that the negative sign precedes the value and the
currency symbol.

<LI>A value of 2 indicates that the negative sign follows the value and the
currency_symbol.

<LI>A value of 3 indicates that the negative sign immediately precedes the
currency symbol.

<LI>A value of 4 indicates that the negative sign immediately follows the
currency_symbol. (<CODE>4</CODE>)
</UL>

<P><B><A NAME="p_cs_precedes"><CODE>p_cs_precedes</CODE></A></B>
-- whether the currency symbol precedes
or follows the value for positive monetary values:</P>

<UL>
<LI>A value of 0 indicates that the symbol follows the value.

<LI>A value of 1 indicates that the symbol precedes the value.
(<CODE>1</CODE>)
</UL>

<P><B><A NAME="p_sep_by_space"><CODE>p_sep_by_space</CODE></A></B>
-- whether the currency symbol is separated
by a space or by no space from the value for positive monetary values:</P>

<UL>
<LI>A value of 0 indicates that no space separates symbol and value.

<LI>A value of 1 indicates that a space separates symbol and value.
(<CODE>0</CODE>)
</UL>

<P><B><A NAME="p_sign_posn"><CODE>p_sign_posn</CODE></A></B>
-- the format for positive monetary values:</P>

<UL>
<LI>A value of 0 indicates that parentheses surround the value and
the currency symbol.

<LI>A value of 1 indicates that the negative sign precedes the value
and the currency symbol.

<LI>A value of 2 indicates that the negative sign follows the value
and the currency symbol.

<LI>A value of 3 indicates that the negative sign immediately precedes
the currency symbol.

<LI>A value of 4 indicates that the negative sign immediately follows
the currency symbol. (<CODE>4</CODE>)
</UL>

<H2><A NAME="localeconv"><CODE>localeconv</CODE></A></H2>

<PRE>struct lconv *<B>localeconv</B>(void);</PRE>

<P>The function returns a pointer to a static-duration structure
containing numeric formatting information for the current locale.
You cannot alter values stored in the static-duration structure. The
stored values can change on later calls
to <CODE>localeconv</CODE> or on calls to
<A HREF="#setlocale"><CODE>setlocale</CODE></A>
that alter any of the categories
<A HREF="#LC_ALL"><CODE>LC_ALL</CODE></A>,
<A HREF="#LC_MONETARY"><CODE>LC_MONETARY</CODE></A>, or
<A HREF="#LC_NUMERIC"><CODE>LC_NUMERIC</CODE></A>.</P>

<H2><A NAME="NULL"><CODE>NULL</CODE></A></H2>

<PRE>#define <B>NULL</B> <I>&lt;either 0, 0L, or (void *)0&gt;</I> <B>[0 in C++]</B></PRE>

<P>The macro yields a null pointer constant that is usable as an
<A HREF="express.html#address constant expression">
address constant expression</A>.</P>

<H2><A NAME="setlocale"><CODE>setlocale</CODE></A></H2>

<PRE>char *<B>setlocale</B>(int category, const char *locname);</PRE>

<P>The function either returns a pointer to a static-duration string
describing a new locale or returns a null pointer (if the new locale
cannot be selected). The value of <CODE>category</CODE>
selects one or more
<A HREF="#locale category">locale categories</A>,
each of which must match the value
of one of the macros defined in this standard header with names that
begin with <CODE>LC_</CODE>.</P>

<P>If <CODE>locname</CODE> is a null pointer, the locale remains unchanged.
If <CODE>locname</CODE> designates the string <CODE>"C"</CODE>,
the new locale is the
<A HREF="#C locale"><CODE>"C"</CODE></A> locale
for the locale category specified. If <CODE>locname</CODE>
designates the string <CODE>""</CODE>, the new locale is the
<B><A NAME="native locale">native locale</A></B>
(a default locale presumably tailored for the local culture)
for the locale category specified.
<CODE>locname</CODE> can also designate a string
returned on an earlier call to <CODE>setlocale</CODE> or to other strings
that the implementation can define.</P>

<P>At
<A HREF="lib_over.html#program startup">program startup</A>,
the target environment calls <CODE>setlocale(
<A HREF="#LC_ALL">LC_ALL</A>,
"C")</CODE> before it calls <CODE>main</CODE>.</P>

<HR>
<P>See also the
<B><A HREF="index.html#Table of Contents">Table of Contents</A></B> and the
<B><A HREF="_index.html">Index</A></B>.</P>

<P><I>
<A HREF="crit_pb.html">Copyright</A> &#169; 1989-2002
by P.J. Plauger and Jim Brodie. All rights reserved.</I></P>

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