text: #ifndef	_LOCALE_H
  #define	_LOCALE_H
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  #include <features.h>
  
  #if __cplusplus >= 201103L
  #define NULL nullptr
  #elif defined(__cplusplus)
  #define NULL 0L
  #else
  #define NULL ((void*)0)
  #endif
  
  #define LC_CTYPE    0
  #define LC_NUMERIC  1
  #define LC_TIME     2
  #define LC_COLLATE  3
  #define LC_MONETARY 4
  #define LC_MESSAGES 5
  #define LC_ALL      6
  
  struct lconv {
  	char *decimal_point;
  	char *thousands_sep;
  	char *grouping;
  
  	char *int_curr_symbol;
  	char *currency_symbol;
  	char *mon_decimal_point;
  	char *mon_thousands_sep;
  	char *mon_grouping;
  	char *positive_sign;
  	char *negative_sign;
  	char int_frac_digits;
  	char frac_digits;
  	char p_cs_precedes;
  	char p_sep_by_space;
  	char n_cs_precedes;
  	char n_sep_by_space;
  	char p_sign_posn;
  	char n_sign_posn;
  	char int_p_cs_precedes;
  	char int_p_sep_by_space;
  	char int_n_cs_precedes;
  	char int_n_sep_by_space;
  	char int_p_sign_posn;
  	char int_n_sign_posn;
  };
  
  
  char *setlocale (int, const char *);
  struct lconv *localeconv(void);
  
  
  #if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
   || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
  
  #define __NEED_locale_t
  
  #include <bits/alltypes.h>
  
  #ifdef __CHEERP__
  extern struct __locale_struct __dummy_locale;
  #define LC_GLOBAL_LOCALE (&__dummy_locale)
  #else
  #define LC_GLOBAL_LOCALE ((locale_t)-1)
  #endif
  
  #define LC_CTYPE_MASK    (1<<LC_CTYPE)
  #define LC_NUMERIC_MASK  (1<<LC_NUMERIC)
  #define LC_TIME_MASK     (1<<LC_TIME)
  #define LC_COLLATE_MASK  (1<<LC_COLLATE)
  #define LC_MONETARY_MASK (1<<LC_MONETARY)
  #define LC_MESSAGES_MASK (1<<LC_MESSAGES)
  #define LC_ALL_MASK      0x7fffffff
  
  locale_t duplocale(locale_t);
  void freelocale(locale_t);
  locale_t newlocale(int, const char *, locale_t);
  locale_t uselocale(locale_t);
  
  #endif
  
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif
  