diff options
Diffstat (limited to 'ext/mysql/libmysql/int2str.c')
-rw-r--r-- | ext/mysql/libmysql/int2str.c | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/ext/mysql/libmysql/int2str.c b/ext/mysql/libmysql/int2str.c deleted file mode 100644 index 9d6d435721..0000000000 --- a/ext/mysql/libmysql/int2str.c +++ /dev/null @@ -1,97 +0,0 @@ -/* - Defines: int2str(), itoa(), ltoa() - - int2str(dst, radix, val) - converts the (long) integer "val" to character form and moves it to - the destination string "dst" followed by a terminating NUL. The - result is normally a pointer to this NUL character, but if the radix - is dud the result will be NullS and nothing will be changed. - - If radix is -2..-36, val is taken to be SIGNED. - If radix is 2.. 36, val is taken to be UNSIGNED. - That is, val is signed if and only if radix is. You will normally - use radix -10 only through itoa and ltoa, for radix 2, 8, or 16 - unsigned is what you generally want. - - _dig_vec is public just in case someone has a use for it. - The definitions of itoa and ltoa are actually macros in m_string.h, - but this is where the code is. - - Note: The standard itoa() returns a pointer to the argument, when int2str - returns the pointer to the end-null. - itoa assumes that 10 -base numbers are allways signed and other arn't. -*/ - -#include <global.h> -#include "m_string.h" - -char NEAR _dig_vec[] = - "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"; - - -char *int2str(register long int val, register char *dst, register int radix) -{ - char buffer[65]; - register char *p; - - if (radix < 0) { - if (radix < -36 || radix > -2) return NullS; - if (val < 0) { - *dst++ = '-'; - val = -val; - } - radix = -radix; - } else { - if (radix > 36 || radix < 2) return NullS; - } - /* The slightly contorted code which follows is due to the - fact that few machines directly support unsigned long / and %. - Certainly the VAX C compiler generates a subroutine call. In - the interests of efficiency (hollow laugh) I let this happen - for the first digit only; after that "val" will be in range so - that signed integer division will do. Sorry 'bout that. - CHECK THE CODE PRODUCED BY YOUR C COMPILER. The first % and / - should be unsigned, the second % and / signed, but C compilers - tend to be extraordinarily sensitive to minor details of style. - This works on a VAX, that's all I claim for it. - */ - p = &buffer[sizeof(buffer)-1]; - *p = '\0'; - *--p = _dig_vec[(ulong) val % (ulong) radix]; - val = (ulong) val / (ulong) radix; -#ifdef HAVE_LDIV - while (val != 0) - { - ldiv_t res; - res=ldiv(val,radix); - *--p = _dig_vec[res.rem]; - val= res.quot; - } -#else - while (val != 0) - { - *--p = _dig_vec[val%radix]; - val /= radix; - } -#endif - while ((*dst++ = *p++) != 0) ; - return dst-1; -} - -#ifdef USE_MY_ITOA - - /* Change to less general itoa interface */ - -char *my_itoa(int val, char *dst, int radix) -{ - VOID(int2str((long) val,dst,(radix == 10 ? -10 : radix))); - return dst; -} - -char *my_ltoa(long int val, char *dst, int radix) -{ - VOID(int2str((long) val,dst,(radix == 10 ? -10 : radix))); - return dst; -} - -#endif |