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#define PF_FLAG_LEFT_ADJUST (0x001)
#define PF_FLAG_SHOW_SIGN (0x002)
#define PF_FLAG_SPACE_SIGN (0x004)
#define PF_FLAG_NO_TRAILZ (0x008)
#define PF_FLAG_SHOW_PREFIX (0x010)
#define PF_FLAG_SHOW_COMMA (0x020)
#define PF_FLAG_PAD_AFTER_SIGN (0x040)
#define PF_FLAG_CENTER_ADJUST (0x080)
#define PF_FLAG_ADD_PERCENT (0x100)
#define PF_FLAG_PAD_NAN_INF (0x200)
#define PF_FLAG_SHOW_OCTAL_LETTER (0x400)
typedef struct _pfenv_t {
void *data;
void (*print_strn)(void *, const char *str, unsigned int len);
} pfenv_t;
void pfenv_vstr_add_strn(void *data, const char *str, unsigned int len);
int pfenv_print_strn(const pfenv_t *pfenv, const char *str, unsigned int len, int flags, char fill, int width);
int pfenv_print_int(const pfenv_t *pfenv, machine_uint_t x, int sgn, int base, int base_char, int flags, char fill, int width);
int pfenv_print_mp_int(const pfenv_t *pfenv, mp_obj_t x, int sgn, int base, int base_char, int flags, char fill, int width);
#if MICROPY_ENABLE_FLOAT
int pfenv_print_float(const pfenv_t *pfenv, mp_float_t f, char fmt, int flags, char fill, int width, int prec);
#endif
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