diff options
Diffstat (limited to 'lib/xstrtoumax.c')
-rw-r--r-- | lib/xstrtoumax.c | 74 |
1 files changed, 3 insertions, 71 deletions
diff --git a/lib/xstrtoumax.c b/lib/xstrtoumax.c index 9ef799b34..04d7cf98a 100644 --- a/lib/xstrtoumax.c +++ b/lib/xstrtoumax.c @@ -21,79 +21,11 @@ # include <config.h> #endif -#if HAVE_STRTOUMAX -# define __strtol strtoumax -#else -# define __strtol my_strtoumax - - /* Define a temporary implementation, intended to hold the fort only - until glibc has an implementation of the C9x standard function - strtoumax. When glibc implements strtoumax, we can remove the - following function in favor of a replacement file strtoumax.c taken - from glibc. */ - -# if HAVE_INTTYPES_H -# include <inttypes.h> -# endif - -# if HAVE_STDLIB_H -# include <stdlib.h> -# endif - -# ifndef PARAMS -# if defined PROTOTYPES || defined __STDC__ -# define PARAMS(Args) Args -# else -# define PARAMS(Args) () -# endif -# endif - -static uintmax_t my_strtoumax PARAMS ((char const *, char **, int)); +#if HAVE_INTTYPES_H +# include <inttypes.h> #endif +#define __strtol strtoumax #define __strtol_t uintmax_t #define __xstrtol xstrtoumax #include "xstrtol.c" - -#if !HAVE_STRTOUMAX - -static uintmax_t -my_strtoumax (char const *ptr, char **endptr, int base) -{ -# define USE_IF_EQUIVALENT(function) \ - if (sizeof (uintmax_t) == sizeof function (ptr, endptr, base)) \ - return function (ptr, endptr, base); - - USE_IF_EQUIVALENT (strtoul) - -# if HAVE_STRTOULL - USE_IF_EQUIVALENT (strtoull) -# endif - -# if HAVE_STRTOUQ - USE_IF_EQUIVALENT (strtouq) -# endif - - { - /* An implementation with uintmax_t longer than long, but with no - known way to convert it. Do it by hand. Assume base 10. */ - uintmax_t n = 0; - uintmax_t overflow = 0; - for (; '0' <= *ptr && *ptr <= '9'; ptr++) - { - uintmax_t n10 = n * 10; - int digit = *ptr - '0'; - overflow |= n ^ (n10 + digit) / 10; - n = n10 + digit; - } - if (endptr) - *endptr = (char *) ptr; - if (overflow) - { - errno = ERANGE; - n = (uintmax_t) -1; - } - return n; - } -} -#endif /* HAVE_STRTOUMAX */ |