fixed bugs with sizeof() and unnormalized values

diff --git a/lang/cem/libcc.ansi/stdlib/ext_comp.c b/lang/cem/libcc.ansi/stdlib/ext_comp.c
index f4dd8ec..0cbbdc6 100644 (file)
--- 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;
 }