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* util.c (BSD__hdtoa): don't use C99 macros. (FP_NORMAL etc)

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27142 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
naruse 2010-04-01 05:09:10 +00:00
parent 12b2e16e21
commit 3a4c2bc034
2 changed files with 22 additions and 19 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
Thu Apr 1 14:07:51 2010 NARUSE, Yui <naruse@ruby-lang.org>
* util.c (BSD__hdtoa): don't use C99 macros. (FP_NORMAL etc)
Thu Apr 1 13:30:12 2010 NARUSE, Yui <naruse@ruby-lang.org>
* sprintf.c (rb_str_format): support %a format. [ruby-dev:40650]

29
util.c
View file

@ -3937,26 +3937,25 @@ BSD__hdtoa(double d, const char *xdigs, int ndigits, int *decpt, int *sign,
else
*sign = 0;
switch (fpclassify(d)) {
case FP_NORMAL:
*decpt = dexp_get(u) - DBL_ADJ;
break;
case FP_ZERO:
*decpt = 1;
return (nrv_alloc("0", rve, 1));
case FP_SUBNORMAL:
u.d *= 5.363123171977039e+154 /* 0x1p514 */;
*decpt = dexp_get(u) - (514 + DBL_ADJ);
break;
case FP_INFINITE:
if (isinf(d)) { /* FP_INFINITE */
*decpt = INT_MAX;
return (nrv_alloc(INFSTR, rve, sizeof(INFSTR) - 1));
default: /* FP_NAN or unrecognized */
}
else if (isnan(d)) { /* FP_NAN */
*decpt = INT_MAX;
return (nrv_alloc(NANSTR, rve, sizeof(NANSTR) - 1));
}
/* FP_NORMAL or FP_SUBNORMAL */
else if (d == 0.0) { /* FP_ZERO */
*decpt = 1;
return (nrv_alloc("0", rve, 1));
}
else if (dexp_get(u)) { /* FP_NORMAL */
*decpt = dexp_get(u) - DBL_ADJ;
}
else { /* FP_SUBNORMAL */
u.d *= 5.363123171977039e+154 /* 0x1p514 */;
*decpt = dexp_get(u) - (514 + DBL_ADJ);
}
if (ndigits == 0) /* dtoa() compatibility */
ndigits = 1;