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before detach pid. [ruby-talk:71519] * eval.c (PUSH_FRAME): save outer ruby_block. [ruby-list:37677], [ruby-dev:20202] * eval.c (BEGIN_CALLARGS): restore outer block by using ruby_block->outer. * eval.c (block_pass): do not alter block->prev, but block->outer. * array.c (get_inspect_tbl): warning on wrong condition. * eval.c (localjump_xvalue): renamed exitstatus to exit_value since it's not exit "status" after all. * eval.c (localjump_error): add reason to LocalJumpError. * compar.c (rb_cmpint): raise error via rb_cmperr(), if cmp value is nil. now take new 2 arguments. * time.c (time_cmp): 2003-05-16 fix was incomplete. (ruby-bugs-ja:PR#458) git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@3823 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
135 lines
2.6 KiB
C
135 lines
2.6 KiB
C
/**********************************************************************
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compar.c -
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$Author$
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$Date$
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created at: Thu Aug 26 14:39:48 JST 1993
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Copyright (C) 1993-2003 Yukihiro Matsumoto
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**********************************************************************/
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#include "ruby.h"
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VALUE rb_mComparable;
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static ID cmp;
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int
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rb_cmpint(val, a, b)
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VALUE val, a, b;
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{
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if (NIL_P(val)) {
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rb_cmperr(a, b);
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}
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if (FIXNUM_P(val)) return FIX2INT(val);
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if (TYPE(val) == T_BIGNUM) {
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if (RBIGNUM(val)->sign) return 1;
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return -1;
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}
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if (RTEST(rb_funcall(val, '>', 1, INT2FIX(0)))) return 1;
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if (RTEST(rb_funcall(val, '<', 1, INT2FIX(0)))) return -1;
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return 0;
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}
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void
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rb_cmperr(x, y)
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VALUE x, y;
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{
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const char *classname;
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if (SPECIAL_CONST_P(y)) {
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y = rb_inspect(y);
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classname = StringValuePtr(y);
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}
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else {
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classname = rb_obj_classname(y);
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}
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rb_raise(rb_eArgError, "comparison of %s with %s failed",
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rb_obj_classname(x), classname);
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}
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#define cmperr() (rb_cmperr(x, y), Qnil)
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static VALUE
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cmp_equal(x, y)
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VALUE x, y;
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{
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int c;
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if (x == y) return Qtrue;
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c = rb_funcall(x, cmp, 1, y);
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if (NIL_P(c)) return Qnil;
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if (c == INT2FIX(0)) return Qtrue;
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if (rb_cmpint(c, x, y) == 0) return Qtrue;
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return Qfalse;
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}
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static VALUE
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cmp_gt(x, y)
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VALUE x, y;
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{
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VALUE c = rb_funcall(x, cmp, 1, y);
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if (NIL_P(c)) return cmperr();
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if (rb_cmpint(c, x, y) > 0) return Qtrue;
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return Qfalse;
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}
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static VALUE
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cmp_ge(x, y)
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VALUE x, y;
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{
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VALUE c = rb_funcall(x, cmp, 1, y);
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if (NIL_P(c)) return cmperr();
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if (rb_cmpint(c, x, y) >= 0) return Qtrue;
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return Qfalse;
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}
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static VALUE
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cmp_lt(x, y)
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VALUE x, y;
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{
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VALUE c = rb_funcall(x, cmp, 1, y);
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if (NIL_P(c)) return cmperr();
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if (rb_cmpint(c, x, y) < 0) return Qtrue;
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return Qfalse;
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}
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static VALUE
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cmp_le(x, y)
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VALUE x, y;
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{
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VALUE c = rb_funcall(x, cmp, 1, y);
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if (NIL_P(c)) return cmperr();
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if (rb_cmpint(c, x, y) <= 0) return Qtrue;
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return Qfalse;
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}
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static VALUE
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cmp_between(x, min, max)
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VALUE x, min, max;
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{
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if (RTEST(cmp_lt(x, min))) return Qfalse;
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if (RTEST(cmp_gt(x, max))) return Qfalse;
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return Qtrue;
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}
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void
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Init_Comparable()
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{
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rb_mComparable = rb_define_module("Comparable");
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rb_define_method(rb_mComparable, "==", cmp_equal, 1);
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rb_define_method(rb_mComparable, ">", cmp_gt, 1);
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rb_define_method(rb_mComparable, ">=", cmp_ge, 1);
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rb_define_method(rb_mComparable, "<", cmp_lt, 1);
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rb_define_method(rb_mComparable, "<=", cmp_le, 1);
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rb_define_method(rb_mComparable, "between?", cmp_between, 2);
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cmp = rb_intern("<=>");
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}
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