#if !HAVE_LDEXP_IN_LIBC
#define ldexp dummy_ldexp
- static double ldexp (double x, int exponent) { return x + exponent; }
+ /* A dummy definition that will never be invoked. */
+ static double ldexp (double x _GL_UNUSED, int exponent _GL_UNUSED)
+ {
+ abort ();
+ return 0.0;
+ }
#endif
/* Return X * BASE**EXPONENT. Return an extreme value and set errno
if (c_isdigit (s[*s == '.']))
{
- /* If a hex float was converted incorrectly, do it ourselves. */
- if (*s == '0' && c_tolower (s[1]) == 'x' && end <= s + 2
- && c_isxdigit (s[2 + (s[2] == '.')]))
- num = parse_number (s + 2, 16, 2, 4, 'p', &end);
+ /* If a hex float was converted incorrectly, do it ourselves.
+ If the string starts with "0x" but does not contain digits,
+ consume the "0" ourselves. If a hex float is followed by a
+ 'p' but no exponent, then adjust the end pointer. */
+ if (*s == '0' && c_tolower (s[1]) == 'x')
+ {
+ if (! c_isxdigit (s[2 + (s[2] == '.')]))
+ end = s + 1;
+ else if (end <= s + 2)
+ num = parse_number (s + 2, 16, 2, 4, 'p', &end);
+ else
+ {
+ const char *p = s + 2;
+ while (p < end && c_tolower (*p) != 'p')
+ p++;
+ if (p < end && ! c_isdigit (p[1 + (p[1] == '-' || p[1] == '+')]))
+ end = p;
+ }
+ }
s = end;
}