Bruno Haible <bruno <at> clisp.org> writes:
>
> The floating-point output code crashed due to an abort() for values with
> large exponents (> 1e34 for 'double'). This fixes it.
>
> 2007-11-04 Bruno Haible <bruno <at> clisp.org>
>
> * lib/vasnprintf.c (scale10_round_decimal_decoded): Fix shift loop.
Something's still fishy. Now I'm getting aborts for test-vasprintf-posix.c on
cygwin, with the following sequence of instructions in vasnprintf.c:
Breakpoint 1, test_function (my_asprintf=0x413052 <my_asprintf>)
at ../../tests/test-vasprintf-posix.c:173
173 int retval =
my_asprintf (&result, "%a %d", 3.1416015625, 33, 44, 55);
2690 if (type == TYPE_LONGDOUBLE)
(gdb)
3055 double arg = a.arg[dp->arg_index].a.a_double;
(gdb)
3057 if (isnan (arg))
(gdb)
3070 int sign = 0;
(gdb)
3072 if (signbit (arg)) /* arg < 0.0 or negative
zero */
(gdb)
3078 if (sign < 0)
(gdb)
3080 else if (flags & FLAG_SHOWSIGN)
(gdb)
3082 else if (flags & FLAG_SPACE)
(gdb)
3085 if (arg > 0.0 && arg + arg == arg)
(gdb)
3099 pad_ptr = p;
(gdb)
3101 if (dp->conversion == 'f' || dp->conversion
== 'F')
(gdb)
3136 else if (dp->conversion == 'e' || dp-
>conversion == 'E')
(gdb)
3246 else if (dp->conversion == 'g' || dp-
>conversion == 'G')
(gdb)
3421 abort ();
(gdb)
--
Eric Blake
