-USING: kernel math math.compare math.functions tools.test ;
+USING: kernel math math.compare math.functions sequences
+tools.test ;
+
IN: math.compare.tests
[ -1 ] [ -1 5 absmin ] unit-test
[ 0 ] [ 1 3 negmin ] unit-test
[ -3 ] [ 1 -3 negmin ] unit-test
[ -1 ] [ -1 3 negmin ] unit-test
+
+[ 1 ] [ 1 2 [ ] min-by ] unit-test
+[ 1 ] [ 2 1 [ ] min-by ] unit-test
+[ 42.0 ] [ 42.0 1/0. [ ] min-by ] unit-test
+[ 42.0 ] [ 1/0. 42.0 [ ] min-by ] unit-test
+[ 2 ] [ 1 2 [ ] max-by ] unit-test
+[ 2 ] [ 2 1 [ ] max-by ] unit-test
+[ 1/0. ] [ 42.0 1/0. [ ] max-by ] unit-test
+[ 1/0. ] [ 1/0. 42.0 [ ] max-by ] unit-test
+[ "12345" ] [ "123" "12345" [ length ] max-by ] unit-test
+[ "123" ] [ "123" "12345" [ length ] min-by ] unit-test
: negmin ( a b -- x )
0 min min ;
+
+: max-by ( obj1 obj2 quot: ( obj -- n ) -- obj1/obj2 )
+ [ bi@ dupd max = ] curry most ; inline
+
+: min-by ( obj1 obj2 quot: ( obj -- n ) -- obj1/obj2 )
+ [ bi@ dupd min = ] curry most ; inline
+
+
IN: sequences.extras.tests
-[ 1 ] [ 1 2 [ ] min-by ] unit-test
-[ 1 ] [ 2 1 [ ] min-by ] unit-test
-[ 42.0 ] [ 42.0 1/0. [ ] min-by ] unit-test
-[ 42.0 ] [ 1/0. 42.0 [ ] min-by ] unit-test
-[ 2 ] [ 1 2 [ ] max-by ] unit-test
-[ 2 ] [ 2 1 [ ] max-by ] unit-test
-[ 1/0. ] [ 42.0 1/0. [ ] max-by ] unit-test
-[ 1/0. ] [ 1/0. 42.0 [ ] max-by ] unit-test
-[ "12345" ] [ "123" "12345" [ length ] max-by ] unit-test
-[ "123" ] [ "123" "12345" [ length ] min-by ] unit-test
-
-[ 4 ] [ 5 iota [ ] maximum ] unit-test
-[ 0 ] [ 5 iota [ ] minimum ] unit-test
-[ { "foo" } ] [ { { "foo" } { "bar" } } [ first ] maximum ] unit-test
-[ { "bar" } ] [ { { "foo" } { "bar" } } [ first ] minimum ] unit-test
+[ 4 ] [ 5 iota [ ] supremum-by ] unit-test
+[ 0 ] [ 5 iota [ ] infimum-by ] unit-test
+[ { "foo" } ] [ { { "foo" } { "bar" } } [ first ] supremum-by ] unit-test
+[ { "bar" } ] [ { { "foo" } { "bar" } } [ first ] infimum-by ] unit-test
{ V{ 0 1 2 3 4 5 6 7 8 9 } } [
V{ } clone
: reduce-from ( ... seq identity quot: ( ... prev elt -- ... next ) i -- ... result )
[ swap ] 2dip each-from ; inline
-: max-by ( obj1 obj2 quot: ( obj -- n ) -- obj1/obj2 )
- [ bi@ dupd max = ] curry most ; inline
-
-: min-by ( obj1 obj2 quot: ( obj -- n ) -- obj1/obj2 )
- [ bi@ dupd min = ] curry most ; inline
-
-: maximum ( seq quot: ( ... elt -- ... x ) -- elt )
- [ dup ?first ] dip [ max-by ] curry reduce ; inline
-
-: minimum ( seq quot: ( ... elt -- ... x ) -- elt )
- [ dup ?first ] dip [ min-by ] curry reduce ; inline
-
: supremum-by ( seq quot: ( ... elt -- ... x ) -- elt )
[ [ first dup ] dip call ] 2keep [
dupd call pick dupd max over =