lconv.c

C语言库函数的原型,有用的拿去

/***
*lconv.c - Contains the localeconv function
*
*       Copyright (c) Microsoft Corporation. All rights reserved.
*
*Purpose:
*       Contains the localeconv() function.
*
*******************************************************************************/

#include <cruntime.h>
#include <limits.h>
#include <locale.h>
#include <setlocal.h>
#include <mtdll.h>

/* pointer to original static to avoid freeing */
char __lconv_static_decimal[] = ".";
char __lconv_static_null[] = "";
wchar_t __lconv_static_W_decimal[] = L".";
wchar_t __lconv_static_W_null[] = L"";

/* lconv settings for "C" locale */
struct lconv __lconv_c = {
    __lconv_static_decimal,   /* decimal_point        */
    __lconv_static_null,      /* thousands_sep        */
    __lconv_static_null,      /* grouping             */
    __lconv_static_null,      /* int_curr_symbol      */
    __lconv_static_null,      /* currency_symbol      */
    __lconv_static_null,      /* mon_decimal_point    */
    __lconv_static_null,      /* mon_thousands_sep    */
    __lconv_static_null,      /* mon_grouping         */
    __lconv_static_null,      /* positive_sign        */
    __lconv_static_null,      /* negative_sign        */
    CHAR_MAX,                 /* int_frac_digits      */
    CHAR_MAX,                 /* frac_digits          */
    CHAR_MAX,                 /* p_cs_precedes        */
    CHAR_MAX,                 /* p_sep_by_space       */
    CHAR_MAX,                 /* n_cs_precedes        */
    CHAR_MAX,                 /* n_sep_by_space       */
    CHAR_MAX,                 /* p_sign_posn          */
    CHAR_MAX,                 /* n_sign_posn          */
    __lconv_static_W_decimal, /* _W_decimal_point     */
    __lconv_static_W_null,    /* _W_thousands_sep     */
    __lconv_static_W_null,    /* _W_int_curr_symbol   */
    __lconv_static_W_null,    /* _W_currency_symbol   */
    __lconv_static_W_null,    /* _W_mon_decimal_point */
    __lconv_static_W_null,    /* _W_mon_thousands_sep */
    __lconv_static_W_null,    /* _W_positive_sign     */
    __lconv_static_W_null,    /* _W_negative_sign     */
    };


/* pointer to current lconv structure */

struct lconv *__lconv = &__lconv_c;

/***
*struct lconv *localeconv(void) - Return the numeric formatting convention
*
*Purpose:
*       The localeconv() routine returns the numeric formatting conventions
*       for the current locale setting.  [ANSI]
*
*Entry:
*       void
*
*Exit:
*       struct lconv * = pointer to struct indicating current numeric
*                        formatting conventions.
*
*Exceptions:
*
*******************************************************************************/

struct lconv * __cdecl localeconv (
        void
        )
{
    /*
     * Note that we don't need _LocaleUpdate in this function.
     * The main reason being, that this is a leaf function in
     * locale usage terms.
     */
    _ptiddata ptd = _getptd();
    pthreadlocinfo ptloci = ptd->ptlocinfo;

    __UPDATE_LOCALE(ptd, ptloci);

    return(__lconv);
}