From 57b1d9824ad224cbd4774739cfbabfeba7da98f4 Mon Sep 17 00:00:00 2001 From: eck Date: Fri, 9 Nov 1990 16:26:15 +0000 Subject: [PATCH] fixed bugs with sizeof() and unnormalized values --- lang/cem/libcc.ansi/stdlib/ext_comp.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) diff --git a/lang/cem/libcc.ansi/stdlib/ext_comp.c b/lang/cem/libcc.ansi/stdlib/ext_comp.c index f4dd8ec26..0cbbdc646 100644 --- a/lang/cem/libcc.ansi/stdlib/ext_comp.c +++ b/lang/cem/libcc.ansi/stdlib/ext_comp.c @@ -431,8 +431,8 @@ static struct EXTEND r_big_ten_powers[] = { /* representation of 10 ** -(28*i) * { 0, -1768, 0xD4EEC394, 0xD6258BF8 } }; -#define TP (sizeof(ten_powers)/sizeof(ten_powers[0])) -#define BTP (sizeof(big_ten_powers)/sizeof(big_ten_powers[0])) +#define TP (int)(sizeof(ten_powers)/sizeof(ten_powers[0])) +#define BTP (int)(sizeof(big_ten_powers)/sizeof(big_ten_powers[0])) #define MAX_EXP (TP * BTP - 1) static @@ -685,7 +685,6 @@ _dbl_ext_cvt(double value, struct EXTEND *e) } static struct EXTEND max_d; -static struct EXTEND min_d; double _ext_dbl_cvt(struct EXTEND *e) @@ -701,17 +700,15 @@ _ext_dbl_cvt(struct EXTEND *e) } if (max_d.exp == 0) { _dbl_ext_cvt(DBL_MAX, &max_d); - _dbl_ext_cvt(DBL_MIN, &min_d); } - if (cmp_ext(e, &min_d) < 0) { - f = 0.0; - errno = ERANGE; - } - else if (cmp_ext(&max_d, e) < 0) { + if (cmp_ext(&max_d, e) < 0) { f = HUGE_VAL; errno = ERANGE; } else f = ldexp(ldexp((double)e->m1, 32) + (double)e->m2, e->exp-63); if (sign) f = -f; + if (f == 0.0 && (e->m1 != 0 || e->m2 != 0)) { + errno = ERANGE; + } return f; } -- 2.34.1