diff options
Diffstat (limited to 'bignum.c')
| -rw-r--r-- | bignum.c | 13 |
1 files changed, 7 insertions, 6 deletions
@@ -33,6 +33,8 @@ VALUE rb_cBignum; #define BIGLO(x) ((BDIGIT)((x) & (BIGRAD-1))) #define BDIGMAX ((BDIGIT)-1) +#define BIGZEROP(x) (RBIGNUM(x)->len == 0 || (RBIGNUM(x)->len == 1 && BDIGITS(x)[0] == 0)) + static VALUE bignew_1(klass, len, sign) VALUE klass; @@ -612,7 +614,7 @@ rb_big2str(x, base) return rb_fix2str(x, base); } i = RBIGNUM(x)->len; - if (i == 0 || (i == 1 && BDIGITS(x)[0] == 0)) { + if (BIGZEROP(x)) { return rb_str_new2("0"); } if (base == 10) { @@ -1123,8 +1125,8 @@ bigdivrem(x, y, divp, modp) BDIGIT_DBL_SIGNED num; BDIGIT dd, q; + if (BIGZEROP(y)) rb_num_zerodiv(); yds = BDIGITS(y); - if (ny == 0 && yds[0] == 0) rb_num_zerodiv(); if (nx < ny || (nx == ny && BDIGITS(x)[nx - 1] < BDIGITS(y)[ny - 1])) { if (divp) *divp = rb_int2big(0); if (modp) *modp = x; @@ -1248,8 +1250,7 @@ bigdivmod(x, y, divp, modp) VALUE mod; bigdivrem(x, y, divp, &mod); - if (RBIGNUM(x)->sign != RBIGNUM(y)->sign && - !(RBIGNUM(mod)->len == 1 && BDIGITS(mod)[0] == 0)) { + if (RBIGNUM(x)->sign != RBIGNUM(y)->sign && !BIGZEROP(x)) { if (divp) *divp = bigadd(*divp, rb_int2big(1), 0); if (modp) *modp = bigadd(mod, y, 1); } @@ -1728,8 +1729,8 @@ rb_big_rand(max, rand_buf) { VALUE v; long len = RBIGNUM(max)->len; - - if (len == 0 && BDIGITS(max)[0] == 0) { + + if (BIGZEROP(max)) { return rb_float_new(rand_buf[0]); } v = bignew(len,1); |