diff options
Diffstat (limited to 'include/m_string.h')
| -rw-r--r-- | include/m_string.h | 158 |
1 files changed, 57 insertions, 101 deletions
diff --git a/include/m_string.h b/include/m_string.h index e818d339fcb..7c95c7319dc 100644 --- a/include/m_string.h +++ b/include/m_string.h @@ -12,8 +12,7 @@ You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software - Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -*/ + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ /* There may be prolems include all of theese. Try to test in configure with ones are needed? */ @@ -22,6 +21,9 @@ #ifndef _m_string_h #define _m_string_h + +#include "my_global.h" /* HAVE_* */ + #ifndef __USE_GNU #define __USE_GNU /* We want to use stpcpy */ #endif @@ -51,8 +53,6 @@ # define memmove(d, s, n) bmove ((d), (s), (n)) #elif defined(HAVE_MEMMOVE) # define bmove(d, s, n) memmove((d), (s), (n)) -#else -# define memmove(d, s, n) bmove((d), (s), (n)) /* our bmove */ #endif /* Unixware 7 */ @@ -85,62 +85,21 @@ extern void (*my_str_free)(void *); #define strmov(A,B) __builtin_stpcpy((A),(B)) #elif defined(HAVE_STPCPY) #define strmov(A,B) stpcpy((A),(B)) -#ifndef stpcpy -extern char *stpcpy(char *, const char *); /* For AIX with gcc 2.95.3 */ -#endif #endif /* Declared in int2str() */ -extern const char NEAR _dig_vec_upper[]; -extern const char NEAR _dig_vec_lower[]; - -/* Defined in strtod.c */ -extern const double log_10[309]; +extern const char _dig_vec_upper[]; +extern const char _dig_vec_lower[]; extern char *strmov_overlapp(char *dest, const char *src); -#ifdef BAD_MEMCPY /* Problem with gcc on Alpha */ -#define memcpy_fixed(A,B,C) bmove((A),(B),(C)) -#else -#define memcpy_fixed(A,B,C) memcpy((A),(B),(C)) -#endif - -#if (!defined(USE_BMOVE512) || defined(HAVE_valgrind)) && !defined(bmove512) -#define bmove512(A,B,C) memcpy(A,B,C) -#endif - - /* Prototypes for string functions */ - -#if !defined(bfill) && !defined(HAVE_BFILL) -extern void bfill(uchar *dst,size_t len,pchar fill); -#endif - -#if !defined(bzero) && !defined(HAVE_BZERO) -extern void bzero(void * dst,size_t len); -#endif - -#if !defined(bcmp) && !defined(HAVE_BCMP) -extern size_t bcmp(const uchar *s1,const uchar *s2,size_t len); -#endif -#ifdef HAVE_valgrind -extern size_t my_bcmp(const uchar *s1,const uchar *s2,size_t len); -#undef bcmp -#define bcmp(A,B,C) my_bcmp((A),(B),(C)) -#endif /* HAVE_valgrind */ - #if defined(_lint) || defined(FORCE_INIT_OF_VARS) #define LINT_INIT_STRUCT(var) bzero(&var, sizeof(var)) /* No uninitialize-warning */ #else #define LINT_INIT_STRUCT(var) #endif -#ifndef bmove512 -extern void bmove512(uchar *dst,const uchar *src,size_t len); -#endif - -#if !defined(HAVE_BMOVE) && !defined(bmove) -extern void bmove(uuchar *dst, const uchar *src,size_t len); -#endif +/* Prototypes for string functions */ extern void bmove_upp(uchar *dst,const uchar *src,size_t len); extern void bchange(uchar *dst,size_t old_len,const uchar *src, @@ -148,66 +107,62 @@ extern void bchange(uchar *dst,size_t old_len,const uchar *src, extern void strappend(char *s,size_t len,pchar fill); extern char *strend(const char *s); extern char *strcend(const char *, pchar); -extern char *strfield(char *src,int fields,int chars,int blanks, - int tabch); extern char *strfill(char * s,size_t len,pchar fill); -extern size_t strinstr(const char *str,const char *search); -extern size_t r_strinstr(const char *str, size_t from, const char *search); -extern char *strkey(char *dst,char *head,char *tail,char *flags); extern char *strmake(char *dst,const char *src,size_t length); #ifndef strmov extern char *strmov(char *dst,const char *src); #endif -extern char *strnmov(char *dst,const char *src,size_t n); -extern char *strsuff(const char *src,const char *suffix); -extern char *strcont(const char *src,const char *set); -extern char *strxcat _VARARGS((char *dst,const char *src, ...)); -extern char *strxmov _VARARGS((char *dst,const char *src, ...)); -extern char *strxcpy _VARARGS((char *dst,const char *src, ...)); -extern char *strxncat _VARARGS((char *dst,size_t len, const char *src, ...)); -extern char *strxnmov _VARARGS((char *dst,size_t len, const char *src, ...)); -extern char *strxncpy _VARARGS((char *dst,size_t len, const char *src, ...)); +extern char *strnmov(char *dst, const char *src, size_t n); +extern char *strcont(const char *src, const char *set); +extern char *strxmov(char *dst, const char *src, ...); +extern char *strxnmov(char *dst, size_t len, const char *src, ...); /* Prototypes of normal stringfunctions (with may ours) */ - -#ifdef WANT_STRING_PROTOTYPES -extern char *strcat(char *, const char *); -extern char *strchr(const char *, pchar); -extern char *strrchr(const char *, pchar); -extern char *strcpy(char *, const char *); -extern int strcmp(const char *, const char *); -#ifndef __GNUC__ -extern size_t strlen(const char *); -#endif -#endif #ifndef HAVE_STRNLEN extern size_t strnlen(const char *s, size_t n); #endif -#if !defined(__cplusplus) -#ifndef HAVE_STRPBRK -extern char *strpbrk(const char *, const char *); -#endif -#ifndef HAVE_STRSTR -extern char *strstr(const char *, const char *); -#endif -#endif extern int is_prefix(const char *, const char *); /* Conversion routines */ +typedef enum { + MY_GCVT_ARG_FLOAT, + MY_GCVT_ARG_DOUBLE +} my_gcvt_arg_type; + double my_strtod(const char *str, char **end, int *error); double my_atof(const char *nptr); +size_t my_fcvt(double x, int precision, char *to, my_bool *error); +size_t my_gcvt(double x, my_gcvt_arg_type type, int width, char *to, + my_bool *error); -#ifndef NOT_FIXED_DEC -#define NOT_FIXED_DEC 31 -#endif +#define NOT_FIXED_DEC 31 /* - Max length of a floating point number. - */ + The longest string my_fcvt can return is 311 + "precision" bytes. + Here we assume that we never cal my_fcvt() with precision >= NOT_FIXED_DEC + (+ 1 byte for the terminating '\0'). +*/ #define FLOATING_POINT_BUFFER (311 + NOT_FIXED_DEC) +/* + We want to use the 'e' format in some cases even if we have enough space + for the 'f' one just to mimic sprintf("%.15g") behavior for large integers, + and to improve it for numbers < 10^(-4). + That is, for |x| < 1 we require |x| >= 10^(-15), and for |x| > 1 we require + it to be integer and be <= 10^DBL_DIG for the 'f' format to be used. + We don't lose precision, but make cases like "1e200" or "0.00001" look nicer. +*/ +#define MAX_DECPT_FOR_F_FORMAT DBL_DIG + +/* + The maximum possible field width for my_gcvt() conversion. + (DBL_DIG + 2) significant digits + sign + "." + ("e-NNN" or + MAX_DECPT_FOR_F_FORMAT zeros for cases when |x|<1 and the 'f' format is used). +*/ +#define MY_GCVT_MAX_FIELD_WIDTH (DBL_DIG + 4 + max(5, MAX_DECPT_FOR_F_FORMAT)) \ + extern char *llstr(longlong value,char *buff); extern char *ullstr(longlong value,char *buff); #ifndef HAVE_STRTOUL @@ -221,7 +176,7 @@ extern char *str2int(const char *src,int radix,long lower,long upper, long *val); longlong my_strtoll10(const char *nptr, char **endptr, int *error); #if SIZEOF_LONG == SIZEOF_LONG_LONG -#define longlong2str(A,B,C,D) int2str((A),(B),(C),(D)) +#define ll2str(A,B,C,D) int2str((A),(B),(C),(D)) #define longlong10_to_str(A,B,C) int10_to_str((A),(B),(C)) #undef strtoll #define strtoll(A,B,C) strtol((A),(B),(C)) @@ -234,7 +189,7 @@ longlong my_strtoll10(const char *nptr, char **endptr, int *error); #endif #else #ifdef HAVE_LONG_LONG -extern char *longlong2str(longlong val,char *dst,int radix, int upcase); +extern char *ll2str(longlong val,char *dst,int radix, int upcase); extern char *longlong10_to_str(longlong val,char *dst,int radix); #if (!defined(HAVE_STRTOULL) || defined(NO_STRTOLL_PROTO)) extern longlong strtoll(const char *str, char **ptr, int base); @@ -242,30 +197,25 @@ extern ulonglong strtoull(const char *str, char **ptr, int base); #endif #endif #endif - -/* my_vsnprintf.c */ - -extern size_t my_vsnprintf(char *str, size_t n, - const char *format, va_list ap); -extern size_t my_snprintf(char *to, size_t n, const char *fmt, ...) - ATTRIBUTE_FORMAT(printf, 3, 4); +#define longlong2str(A,B,C) ll2str((A),(B),(C),1) #if defined(__cplusplus) } #endif -/* - LEX_STRING -- a pair of a C-string and its length. - (it's part of the plugin API as a MYSQL_LEX_STRING) -*/ - #include <mysql/plugin.h> -typedef struct st_mysql_lex_string LEX_STRING; #define STRING_WITH_LEN(X) (X), ((size_t) (sizeof(X) - 1)) #define USTRING_WITH_LEN(X) ((uchar*) X), ((size_t) (sizeof(X) - 1)) #define C_STRING_WITH_LEN(X) ((char *) (X)), ((size_t) (sizeof(X) - 1)) +struct st_mysql_const_lex_string +{ + const char *str; + size_t length; +}; +typedef struct st_mysql_const_lex_string LEX_CSTRING; + /* A variant with const and unsigned */ struct st_mysql_const_unsigned_lex_string { @@ -274,4 +224,10 @@ struct st_mysql_const_unsigned_lex_string }; typedef struct st_mysql_const_unsigned_lex_string LEX_CUSTRING; +static inline void lex_string_set(LEX_STRING *lex_str, const char *c_str) +{ + lex_str->str= (char *) c_str; + lex_str->length= strlen(c_str); +} + #endif |