free_printf_comp man page on Darwin

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XPRINTF_COMP(3)		 BSD Library Functions Manual	       XPRINTF_COMP(3)

NAME
     free_printf_comp, new_printf_comp — extensible printf compilation

SYNOPSIS
     #include <printf.h>

     void
     free_printf_comp(printf_comp_t pc);

     printf_comp_t
     new_printf_comp(printf_domain_t restrict domain, locale_t restrict loc,
	 const char * restrict fmt);

DESCRIPTION
     To ameliorate some of the slowness caused by the extra overhead in exten‐
     sible printf (see xprintf(5)), a compile/execute mechanism has been cre‐
     ated.  The new_printf_comp() function compiles the given format string,
     along with a printf domain (see xprintf_domain(3)) and an extended locale
     (see xlocale(3)), and returns a printf_comp_t structure.  The domain may
     not be NULL, but the locale can be NULL, which means to use the current
     locale, either the per-thread locale if it was set, or else the global
     locale.  Because the printf_comp_t structure records the domain and
     locale, care should be taken if either of these are changed.

     Once a printf_comp_t structure is created, it can be passed to one of the
     extensible printf execution variants, described in xprintf_exec(3), along
     with the necessary arguments.  Creating the printf_comp_t structure needs
     to be done only once, but it can be passed to extensible printf execution
     variants any number of times.

     When the printf_comp_t structure is no longer needed, it should be passed
     to free_printf_comp() to release internal memory.

RETURN VALUES
     The new_printf_comp() function returns the new structure, or NULL on
     error (usually NULL domain or out of memory condition).

SEE ALSO
     xlocale(3), xprintf_domain(3), xprintf_exec(3), xprintf(5)

Darwin				 Aug 19, 2012				Darwin
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