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Diffstat (limited to 'ext/mysql/libmysql/strto.c')
| -rw-r--r-- | ext/mysql/libmysql/strto.c | 194 |
1 files changed, 0 insertions, 194 deletions
diff --git a/ext/mysql/libmysql/strto.c b/ext/mysql/libmysql/strto.c deleted file mode 100644 index b858ef19ea..0000000000 --- a/ext/mysql/libmysql/strto.c +++ /dev/null @@ -1,194 +0,0 @@ -/* Copyright Abandoned 1996 TCX DataKonsult AB & Monty Program KB & Detron HB -This file is public domain and comes with NO WARRANTY of any kind */ - -/* - strtol,strtoul,strtoll,strtoull - convert string to long, unsigned long, long long or unsigned long long. - strtoxx(char *src,char **ptr,int base) - converts the string pointed to by src to an long of appropriate long and - returnes it. It skips leading spaces and tabs (but not newlines, formfeeds, - backspaces), then it accepts an optional sign and a sequence of digits - in the specified radix. - If the value of ptr is not (char **)NULL, a pointer to the character - terminating the scan is returned in the location pointed to by ptr. - Trailing spaces will NOT be skipped. - - If an error is detected, the result will be LONG_MIN, 0 or LONG_MAX, - (or LONGLONG..) and errno will be set to - EDOM if there are no digits - ERANGE if the result would overflow. - the ptr will be set to src. - This file is based on the strtol from the the GNU C Library. - it can be compiled with the UNSIGNED and/or LONGLONG flag set -*/ - -#include <global.h> -#include "m_string.h" -#include "m_ctype.h" -#include "my_sys.h" /* defines errno */ -#include <errno.h> - -#undef strtoull -#undef strtoll -#undef strtoul -#undef strtol -#ifdef USE_LONGLONG -#define UTYPE_MAX (~(ulonglong) 0) -#define TYPE_MIN LONGLONG_MIN -#define TYPE_MAX LONGLONG_MAX -#define longtype longlong -#define ulongtype ulonglong -#ifdef USE_UNSIGNED -#define function ulongtype strtoull -#else -#define function longtype strtoll -#endif -#else -#define UTYPE_MAX (ulong) ~0L -#define TYPE_MIN LONG_MIN -#define TYPE_MAX LONG_MAX -#define longtype long -#define ulongtype unsigned long -#ifdef USE_UNSIGNED -#define function ulongtype strtoul -#else -#define function longtype strtol -#endif -#endif - - -/* Convert NPTR to an `unsigned long int' or `long int' in base BASE. - If BASE is 0 the base is determined by the presence of a leading - zero, indicating octal or a leading "0x" or "0X", indicating hexadecimal. - If BASE is < 2 or > 36, it is reset to 10. - If ENDPTR is not NULL, a pointer to the character after the last - one converted is stored in *ENDPTR. */ - - -function (const char *nptr,char **endptr,int base) -{ - int negative; - register ulongtype cutoff; - register unsigned int cutlim; - register ulongtype i; - register const char *s; - register unsigned char c; - const char *save; - int overflow; - - if (base < 0 || base == 1 || base > 36) - base = 10; - - s = nptr; - - /* Skip white space. */ - while (isspace (*s)) - ++s; - if (*s == '\0') - { - goto noconv; - } - - /* Check for a sign. */ - if (*s == '-') - { - negative = 1; - ++s; - } - else if (*s == '+') - { - negative = 0; - ++s; - } - else - negative = 0; - - if (base == 16 && s[0] == '0' && toupper (s[1]) == 'X') - s += 2; - - /* If BASE is zero, figure it out ourselves. */ - if (base == 0) - { - if (*s == '0') - { - if (toupper (s[1]) == 'X') - { - s += 2; - base = 16; - } - else - base = 8; - } - else - base = 10; - } - - /* Save the pointer so we can check later if anything happened. */ - save = s; - - cutoff = UTYPE_MAX / (unsigned long int) base; - cutlim = (uint) (UTYPE_MAX % (unsigned long int) base); - - overflow = 0; - i = 0; - for (c = *s; c != '\0'; c = *++s) - { - if (isdigit (c)) - c -= '0'; - else if (isalpha (c)) - c = toupper (c) - 'A' + 10; - else - break; - if (c >= base) - break; - /* Check for overflow. */ - if (i > cutoff || (i == cutoff && c > cutlim)) - overflow = 1; - else - { - i *= (ulongtype) base; - i += c; - } - } - - /* Check if anything actually happened. */ - if (s == save) - goto noconv; - - /* Store in ENDPTR the address of one character - past the last character we converted. */ - if (endptr != NULL) - *endptr = (char *) s; - -#ifndef USE_UNSIGNED - /* Check for a value that is within the range of - `unsigned long int', but outside the range of `long int'. */ - if (negative) - { - if (i > (ulongtype) TYPE_MIN) - overflow = 1; - } - else if (i > (ulongtype) TYPE_MAX) - overflow = 1; -#endif - - if (overflow) - { - my_errno=ERANGE; -#ifdef USE_UNSIGNED - return UTYPE_MAX; -#else - return negative ? TYPE_MIN : TYPE_MAX; -#endif - } - - /* Return the result of the appropriate sign. */ - return (negative ? -((longtype) i) : (longtype) i); - -noconv: - /* There was no number to convert. */ - my_errno=EDOM; - if (endptr != NULL) - *endptr = (char *) nptr; - return 0L; -} |