diff options
author | usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2021-04-05 01:22:11 +0000 |
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committer | usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2021-04-05 01:22:11 +0000 |
commit | 1a38986aedf63f676efded3e834c959059d21760 (patch) | |
tree | 5539fa810727b12004aed15c8f3cc7d7cb056345 /numeric.c | |
parent | a5272e643121a2e5f51f3cfb2f0899520afafd27 (diff) |
merge revision(s) 254bed302752a401b5fcc3b6c65a9c93711d91d6,fad3023e94c45e7f03478732f7641b6f39ba9d12,3156fb0f2c3ebf8229f392c8502c08fe165ab181: [Backport #17218]
Renamed `nurat_sub` compliant with `rb_rational_plus`
Fix ArithmeticSequence#last and ArithmeticSequence#each for
non-integer sequences (#3870)
[Bug #17218]
[ruby-core:100312]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_6@67936 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'numeric.c')
-rw-r--r-- | numeric.c | 59 |
1 files changed, 32 insertions, 27 deletions
@@ -1042,8 +1042,8 @@ rb_float_plus(VALUE x, VALUE y) * Returns a new Float which is the difference of +float+ and +other+. */ -static VALUE -flo_minus(VALUE x, VALUE y) +VALUE +rb_float_minus(VALUE x, VALUE y) { if (RB_TYPE_P(y, T_FIXNUM)) { return DBL2NUM(RFLOAT_VALUE(x) - (double)FIX2LONG(y)); @@ -1120,8 +1120,8 @@ rb_flo_div_flo(VALUE x, VALUE y) * Returns a new Float which is the result of dividing +float+ by +other+. */ -static VALUE -flo_div(VALUE x, VALUE y) +VALUE +rb_float_div(VALUE x, VALUE y) { double num = RFLOAT_VALUE(x); double den; @@ -1891,6 +1891,31 @@ flo_prev_float(VALUE vx) return DBL2NUM(y); } +VALUE +rb_float_floor(VALUE num, int ndigits) +{ + double number, f; + number = RFLOAT_VALUE(num); + if (number == 0.0) { + return ndigits > 0 ? DBL2NUM(number) : INT2FIX(0); + } + if (ndigits > 0) { + int binexp; + frexp(number, &binexp); + if (float_round_overflow(ndigits, binexp)) return num; + if (number > 0.0 && float_round_underflow(ndigits, binexp)) + return DBL2NUM(0.0); + f = pow(10, ndigits); + f = floor(number * f) / f; + return DBL2NUM(f); + } + else { + num = dbl2ival(floor(number)); + if (ndigits < 0) num = rb_int_floor(num, ndigits); + return num; + } +} + /* * call-seq: * float.floor([ndigits]) -> integer or float @@ -1933,31 +1958,11 @@ flo_prev_float(VALUE vx) static VALUE flo_floor(int argc, VALUE *argv, VALUE num) { - double number, f; int ndigits = 0; - if (rb_check_arity(argc, 0, 1)) { ndigits = NUM2INT(argv[0]); } - number = RFLOAT_VALUE(num); - if (number == 0.0) { - return ndigits > 0 ? DBL2NUM(number) : INT2FIX(0); - } - if (ndigits > 0) { - int binexp; - frexp(number, &binexp); - if (float_round_overflow(ndigits, binexp)) return num; - if (number > 0.0 && float_round_underflow(ndigits, binexp)) - return DBL2NUM(0.0); - f = pow(10, ndigits); - f = floor(number * f) / f; - return DBL2NUM(f); - } - else { - num = dbl2ival(floor(number)); - if (ndigits < 0) num = rb_int_floor(num, ndigits); - return num; - } + return rb_float_floor(num, ndigits); } /* @@ -5676,9 +5681,9 @@ Init_Numeric(void) rb_define_method(rb_cFloat, "coerce", flo_coerce, 1); rb_define_method(rb_cFloat, "-@", rb_float_uminus, 0); rb_define_method(rb_cFloat, "+", rb_float_plus, 1); - rb_define_method(rb_cFloat, "-", flo_minus, 1); + rb_define_method(rb_cFloat, "-", rb_float_minus, 1); rb_define_method(rb_cFloat, "*", rb_float_mul, 1); - rb_define_method(rb_cFloat, "/", flo_div, 1); + rb_define_method(rb_cFloat, "/", rb_float_div, 1); rb_define_method(rb_cFloat, "quo", flo_quo, 1); rb_define_method(rb_cFloat, "fdiv", flo_quo, 1); rb_define_method(rb_cFloat, "%", flo_mod, 1); |