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Code Issues 1 Releases Wiki Activity

All tests pass.

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This commit is contained in:
Mike Beller
2020-06-04 15:27:36 -04:00
parent 411c5da6d3
commit 01837f2bb6
2 changed files with 117 additions and 8 deletions
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93
src/core/inttypes.c
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@@ -197,6 +197,80 @@ static Janet cfun_it_u64_new(int32_t argc, Janet *argv) {
return janet_wrap_u64(janet_unwrap_u64(argv[0]));
}
static Janet cfun_it_s64_compare(int32_t argc, Janet *argv) {
janet_fixarity(argc, 2);
if (janet_is_int(argv[0]) != JANET_INT_S64)
janet_panic("compare method requires int/s64 as first argument");
int64_t x = janet_unwrap_s64(argv[0]);
switch (janet_type(argv[1])) {
default:
break;
case JANET_NUMBER : {
double y = round(janet_unwrap_number(argv[1]));
double dx = round((double) x); //double trouble?
return janet_wrap_number(dx < y ? -1 : (dx > y ? 1 : 0));
}
case JANET_ABSTRACT: {
void *abst = janet_unwrap_abstract(argv[1]);
if (janet_abstract_type(abst) == &janet_s64_type) {
int64_t y = *(int64_t *)abst;
return janet_wrap_number((x < y) ? -1 : (x > y ? 1 : 0));
} else if (janet_abstract_type(abst) == &janet_u64_type) {
// comparing signed to unsigned -- be careful!
uint64_t y = *(uint64_t *)abst;
if (x < 0) {
return janet_wrap_number(-1);
} else if (y > INT64_MAX) {
return janet_wrap_number(-1);
} else {
int64_t y2 = (int64_t) y;
return janet_wrap_number((x < y2) ? -1 : (x > y2 ? 1 : 0));
}
}
break;
}
}
return janet_wrap_nil();
}
static Janet cfun_it_u64_compare(int32_t argc, Janet *argv) {
janet_fixarity(argc, 2);
if (janet_is_int(argv[0]) != JANET_INT_U64) // is this needed?
janet_panic("compare method requires int/u64 as first argument");
uint64_t x = janet_unwrap_u64(argv[0]);
switch (janet_type(argv[1])) {
default:
break;
case JANET_NUMBER : {
double y = round(janet_unwrap_number(argv[1]));
if (y < 0) // unsigned int x has to be greater
return janet_wrap_number(1);
double dx = round((double) x); //double trouble?
return janet_wrap_number(dx < y ? -1 : (dx > y ? 1 : 0));
}
case JANET_ABSTRACT: {
void *abst = janet_unwrap_abstract(argv[1]);
if (janet_abstract_type(abst) == &janet_u64_type) {
uint64_t y = *(uint64_t *)abst;
return janet_wrap_number((x < y) ? -1 : (x > y ? 1 : 0));
} else if (janet_abstract_type(abst) == &janet_s64_type) {
// comparing unsigned to signed -- be careful!
int64_t y = *(int64_t *)abst;
if (y < 0) {
return janet_wrap_number(1);
} else if (x > INT64_MAX) {
return janet_wrap_number(1);
} else {
int64_t x2 = (int64_t) x;
return janet_wrap_number((x2 < y) ? -1 : (x2 > y ? 1 : 0));
}
}
break;
}
}
return janet_wrap_nil();
}
#define OPMETHOD(T, type, name, oper) \
static Janet cfun_it_##type##_##name(int32_t argc, Janet *argv) { \
janet_arity(argc, 2, -1); \
@@ -266,13 +340,14 @@ static Janet cfun_it_##type##_##name(int32_t argc, Janet *argv) { \
return janet_wrap_abstract(box); \
} \
/*
#define COMPMETHOD(T, type, name, oper) \
static Janet cfun_it_##type##_##name(int32_t argc, Janet *argv) { \
janet_fixarity(argc, 2); \
T v1 = janet_unwrap_##type(argv[0]); \
T v2 = janet_unwrap_##type(argv[1]); \
return janet_wrap_boolean(v1 oper v2); \
}
} */
static Janet cfun_it_s64_mod(int32_t argc, Janet *argv) {
janet_arity(argc, 2, -1);
@@ -316,12 +391,14 @@ OPMETHOD(int64_t, s64, or, |)
OPMETHOD(int64_t, s64, xor, ^)
OPMETHOD(int64_t, s64, lshift, <<)
OPMETHOD(int64_t, s64, rshift, >>)
/*
COMPMETHOD(int64_t, s64, lt, <)
COMPMETHOD(int64_t, s64, gt, >)
COMPMETHOD(int64_t, s64, le, <=)
COMPMETHOD(int64_t, s64, ge, >=)
COMPMETHOD(int64_t, s64, eq, ==)
COMPMETHOD(int64_t, s64, ne, !=)
*/
OPMETHOD(uint64_t, u64, add, +)
OPMETHOD(uint64_t, u64, sub, -)
@@ -336,18 +413,20 @@ OPMETHOD(uint64_t, u64, or, |)
OPMETHOD(uint64_t, u64, xor, ^)
OPMETHOD(uint64_t, u64, lshift, <<)
OPMETHOD(uint64_t, u64, rshift, >>)
/*
COMPMETHOD(uint64_t, u64, lt, <)
COMPMETHOD(uint64_t, u64, gt, >)
COMPMETHOD(uint64_t, u64, le, <=)
COMPMETHOD(uint64_t, u64, ge, >=)
COMPMETHOD(uint64_t, u64, eq, ==)
COMPMETHOD(uint64_t, u64, ne, !=)
COMPMETHOD(uint64_t, u64, ne, !=) */
#undef OPMETHOD
#undef DIVMETHOD
#undef DIVMETHOD_SIGNED
#undef COMPMETHOD
static JanetMethod it_s64_methods[] = {
{"+", cfun_it_s64_add},
{"r+", cfun_it_s64_add},
@@ -361,12 +440,12 @@ static JanetMethod it_s64_methods[] = {
{"rmod", cfun_it_s64_modi},
{"%", cfun_it_s64_rem},
{"r%", cfun_it_s64_remi},
{"<", cfun_it_s64_lt},
/* {"<", cfun_it_s64_lt},
{">", cfun_it_s64_gt},
{"<=", cfun_it_s64_le},
{">=", cfun_it_s64_ge},
{"=", cfun_it_s64_eq},
{"!=", cfun_it_s64_ne},
{"!=", cfun_it_s64_ne},*/
{"&", cfun_it_s64_and},
{"r&", cfun_it_s64_and},
{"|", cfun_it_s64_or},
@@ -375,6 +454,7 @@ static JanetMethod it_s64_methods[] = {
{"r^", cfun_it_s64_xor},
{"<<", cfun_it_s64_lshift},
{">>", cfun_it_s64_rshift},
{"compare", cfun_it_s64_compare},
{NULL, NULL}
};
@@ -392,12 +472,12 @@ static JanetMethod it_u64_methods[] = {
{"rmod", cfun_it_u64_modi},
{"%", cfun_it_u64_mod},
{"r%", cfun_it_u64_modi},
{"<", cfun_it_u64_lt},
/* {"<", cfun_it_u64_lt},
{">", cfun_it_u64_gt},
{"<=", cfun_it_u64_le},
{">=", cfun_it_u64_ge},
{"=", cfun_it_u64_eq},
{"!=", cfun_it_u64_ne},
{"!=", cfun_it_u64_ne}, */
{"&", cfun_it_u64_and},
{"r&", cfun_it_u64_and},
{"|", cfun_it_u64_or},
@@ -406,6 +486,7 @@ static JanetMethod it_u64_methods[] = {
{"r^", cfun_it_u64_xor},
{"<<", cfun_it_u64_lshift},
{">>", cfun_it_u64_rshift},
{"compare", cfun_it_u64_compare},
{NULL, NULL}
};

32
test/suite0.janet
View File

@@ -336,7 +336,7 @@
## Polymorphic comparison -- Issue #272
# confirm delegation to primitive comparators:
# confirm polymorphic comparison delegation to primitive comparators:
(assert (= 0 (compare-primitive 3 3)) "compare-primitive integers (1)")
(assert (= -1 (compare-primitive 3 5)) "compare-primitive integers (2)")
(assert (= 1 (compare-primitive "foo" "bar")) "compare-primitive strings")
@@ -367,7 +367,7 @@
(fn [x] (+ x x))
print) "compare type ordering")
# test polymorphic
# test polymorphic compare with 'objects' (table/setproto)
(def mynum
@{:type :mynum :v 0 :compare
(fn [self other]
@@ -386,6 +386,34 @@
(assert (compare= 3 n3 (table/setproto @{:v 3} mynum)) "compare= poly")
(assert (deep= (sorted @[4 5 n3 2] compare<) @[2 n3 4 5]) "polymorphic sort"))
# test polymorphic compare with int/u64 and int/s64
(def MAX_INT_64_STRING "9223372036854775807")
(def MAX_UINT_64_STRING "18446744073709551615")
(def MAX_INT_IN_DBL_STRING "9007199254740992")
(assert (= 0 (compare (int/u64 3) 3)) "compare number to int/u64")
(assert (= -1 (compare (int/u64 3) 4)) "compare number to int/u64 less")
(assert (= 0 (compare 3 (int/u64 3))) "compare number to int/u64")
(assert (= 1 (compare 4 (int/u64 3))) "compare number to int/u64 greater")
(assert (= 0 (compare (int/u64 3) (int/u64 3))) "compare int/u64 to int/u64")
(assert (= 1 (compare (int/u64 4) (int/u64 3))) "compare int/u64 to int/u64 greater")
(assert (= 0 (compare (int/s64 3) 3)) "compare number to int/s64")
(assert (= -1 (compare (int/s64 3) 4)) "compare number to int/s64 less")
(assert (= 0 (compare 3 (int/s64 3))) "compare number to int/s64")
(assert (= 1 (compare 4 (int/s64 3))) "compare number to int/s64 greater")
(assert (= 0 (compare (int/s64 3) (int/s64 3))) "compare int/s64 to int/s64")
(assert (= 1 (compare (int/s64 4) (int/s64 3))) "compare int/s64 to int/s64 greater")
(assert (= 0 (compare (int/u64 3) (int/s64 3))) "compare int/u64 to int/s64 (1)")
(assert (= -1 (compare (int/u64 3) (int/s64 4))) "compare int/u64 to int/s64 (2)")
(assert (= 1 (compare (int/u64 1) (int/s64 -1))) "compare int/u64 to int/s64 (3)")
(assert (= 1 (compare (int/s64 4) (int/u64 3))) "compare int/s64 to int/u64")
(assert (= -1 (compare (int/s64 -1) (int/u64 0))) "compare int/s64 to int/u64 negative")
(assert (= -1 (compare (int/s64 MAX_INT_64_STRING) (int/u64 MAX_UINT_64_STRING))) "compare big ints")
(assert (= 0 (compare (int/s64 MAX_INT_IN_DBL_STRING) (scan-number MAX_INT_IN_DBL_STRING))) "compare max int in double (1)")
(assert (= 0 (compare (int/u64 MAX_INT_IN_DBL_STRING) (scan-number MAX_INT_IN_DBL_STRING))) "compare max int in double (2)")
(assert (= 1 (compare (+ 2 (int/u64 MAX_INT_IN_DBL_STRING)) (scan-number MAX_INT_IN_DBL_STRING))) "compare max int in double (3)")
# Beware: This is a horrible effect of comparing doubles to integers
# int/64(MAX+1) should compare greater than the double, (but doesn't due to precision)
(assert (= 0 (compare (+ 1 (int/u64 MAX_INT_IN_DBL_STRING)) (scan-number MAX_INT_IN_DBL_STRING))) "compare max int in double (3)")
(end-suite)