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diff --git a/lib/compiler/test/num_bif_SUITE.erl b/lib/compiler/test/num_bif_SUITE.erl
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-%%
-%% %CopyrightBegin%
-%%
-%% Copyright Ericsson AB 2004-2016. All Rights Reserved.
-%%
-%% Licensed under the Apache License, Version 2.0 (the "License");
-%% you may not use this file except in compliance with the License.
-%% You may obtain a copy of the License at
-%%
-%% http://www.apache.org/licenses/LICENSE-2.0
-%%
-%% Unless required by applicable law or agreed to in writing, software
-%% distributed under the License is distributed on an "AS IS" BASIS,
-%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-%% See the License for the specific language governing permissions and
-%% limitations under the License.
-%%
-%% %CopyrightEnd%
-%%
--module(num_bif_SUITE).
-
--include_lib("common_test/include/ct.hrl").
-
-%% Tests optimization of the BIFs:
-%% abs/1
-%% float/1
-%% float_to_list/1
-%% integer_to_list/1
-%% list_to_float/1
-%% list_to_integer/1
-%% round/1
-%% trunc/1
-
--export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
- init_per_group/2,end_per_group/2, t_abs/1, t_float/1,
- t_float_to_list/1, t_integer_to_list/1,
- t_list_to_integer/1,
- t_list_to_float_safe/1, t_list_to_float_risky/1,
- t_round/1, t_trunc/1]).
-
-suite() -> [{ct_hooks,[ts_install_cth]}].
-
-all() ->
- test_lib:recompile(?MODULE),
- [t_abs, t_float, t_float_to_list, t_integer_to_list,
- {group, t_list_to_float}, t_list_to_integer, t_round,
- t_trunc].
-
-groups() ->
- [{t_list_to_float, [],
- [t_list_to_float_safe, t_list_to_float_risky]}].
-
-init_per_suite(Config) ->
- Config.
-
-end_per_suite(_Config) ->
- ok.
-
-init_per_group(_GroupName, Config) ->
- Config.
-
-end_per_group(_GroupName, Config) ->
- Config.
-
-
-t_abs(Config) when is_list(Config) ->
- %% Floats.
- 5.5 = abs(5.5),
- 0.0 = abs(0.0),
- 100.0 = abs(-100.0),
-
- %% Integers.
- 5 = abs(5),
- 0 = abs(0),
- 100 = abs(-100),
-
- %% The largest smallnum. OTP-3190.
- X = (1 bsl 27) - 1,
- X = abs(X),
- X = abs(X-1)+1,
- X = abs(X+1)-1,
- X = abs(-X),
- X = abs(-X-1)-1,
- X = abs(-X+1)+1,
-
- %% Bignums.
- BigNum = 13984792374983749,
- BigNum = abs(BigNum),
- BigNum = abs(-BigNum),
- ok.
-
-t_float(Config) when is_list(Config) ->
- 0.0 = float(0),
- 2.5 = float(2.5),
- 0.0 = float(0.0),
- -100.55 = float(-100.55),
- 42.0 = float(42),
- -100.0 = float(-100),
-
- %% Bignums.
- 4294967305.0 = float(4294967305),
- -4294967305.0 = float(-4294967305),
-
- %% Extremly big bignums.
- Big = list_to_integer(lists:duplicate(2000, $1)),
- {'EXIT', {badarg, _}} = (catch float(Big)),
-
- %% Invalid types and lists.
- {'EXIT', {badarg, _}} = (catch list_to_integer(atom)),
- {'EXIT', {badarg, _}} = (catch list_to_integer(123)),
- {'EXIT', {badarg, _}} = (catch list_to_integer([$1, [$2]])),
- {'EXIT', {badarg, _}} = (catch list_to_integer("1.2")),
- {'EXIT', {badarg, _}} = (catch list_to_integer("a")),
- {'EXIT', {badarg, _}} = (catch list_to_integer("")),
- ok.
-
-
-%% Tests float_to_list/1.
-
-t_float_to_list(Config) when is_list(Config) ->
- test_ftl("0.0e+0", 0.0),
- test_ftl("2.5e+1", 25.0),
- test_ftl("2.5e+0", 2.5),
- test_ftl("2.5e-1", 0.25),
- test_ftl("-3.5e+17", -350.0e15),
- ok.
-
-test_ftl(Expect, Float) ->
- %% No on the next line -- we want the line number from t_float_to_list.
- Expect = remove_zeros(lists:reverse(float_to_list(Float)), []).
-
-%% Removes any non-significant zeros in a floating point number.
-%% Example: 2.500000e+01 -> 2.5e+1
-
-remove_zeros([$+, $e|Rest], [$0, X|Result]) ->
- remove_zeros([$+, $e|Rest], [X|Result]);
-remove_zeros([$-, $e|Rest], [$0, X|Result]) ->
- remove_zeros([$-, $e|Rest], [X|Result]);
-remove_zeros([$0, $.|Rest], [$e|Result]) ->
- remove_zeros(Rest, [$., $0, $e|Result]);
-remove_zeros([$0|Rest], [$e|Result]) ->
- remove_zeros(Rest, [$e|Result]);
-remove_zeros([Char|Rest], Result) ->
- remove_zeros(Rest, [Char|Result]);
-remove_zeros([], Result) ->
- Result.
-
-%% Tests integer_to_list/1.
-
-t_integer_to_list(Config) when is_list(Config) ->
- "0" = integer_to_list(0),
- "42" = integer_to_list(42),
- "-42" = integer_to_list(-42),
- "-42" = integer_to_list(-42),
- "32768" = integer_to_list(32768),
- "268435455" = integer_to_list(268435455),
- "-268435455" = integer_to_list(-268435455),
- "123456932798748738738" = integer_to_list(123456932798748738738),
- Big_List = lists:duplicate(2000, $1),
- Big = list_to_integer(Big_List),
- Big_List = integer_to_list(Big),
- ok.
-
-%% Tests list_to_float/1.
-
-
-t_list_to_float_safe(Config) when is_list(Config) ->
- 0.0 = list_to_float("0.0"),
- 0.0 = list_to_float("-0.0"),
- 0.5 = list_to_float("0.5"),
- -0.5 = list_to_float("-0.5"),
- 100.0 = list_to_float("1.0e2"),
- 127.5 = list_to_float("127.5"),
- -199.5 = list_to_float("-199.5"),
-
- {'EXIT', {badarg, _}} = (catch list_to_float("0")),
- {'EXIT', {badarg, _}} = (catch list_to_float("0..0")),
- {'EXIT', {badarg, _}} = (catch list_to_float("0e12")),
- {'EXIT', {badarg, _}} = (catch list_to_float("--0.0")),
-%% {'EXIT', {badarg, _}} = (catch list_to_float("0.0e+99999999")),
-
- ok.
-
-%% This might crash the emulator...
-%% (Known to crash the Unix version of Erlang 4.4.1)
-
-t_list_to_float_risky(Config) when is_list(Config) ->
- Many_Ones = lists:duplicate(25000, $1),
- _ = list_to_float("2."++Many_Ones),
- {'EXIT', {badarg, _}} = (catch list_to_float("2"++Many_Ones)),
- ok.
-
-%% Tests list_to_integer/1.
-
-t_list_to_integer(Config) when is_list(Config) ->
- 0 = list_to_integer("0"),
- 0 = list_to_integer("00"),
- 0 = list_to_integer("-0"),
- 1 = list_to_integer("1"),
- -1 = list_to_integer("-1"),
- 42 = list_to_integer("42"),
- -12 = list_to_integer("-12"),
- 32768 = list_to_integer("32768"),
- 268435455 = list_to_integer("268435455"),
- -268435455 = list_to_integer("-268435455"),
-
- %% Bignums.
- 123456932798748738738 = list_to_integer("123456932798748738738"),
- _ = list_to_integer(lists:duplicate(2000, $1)),
- ok.
-
-%% Tests round/1.
-
-t_round(Config) when is_list(Config) ->
- 0 = round(0.0),
- 0 = round(0.4),
- 1 = round(0.5),
- 0 = round(-0.4),
- -1 = round(-0.5),
- 255 = round(255.3),
- 256 = round(255.6),
- -1033 = round(-1033.3),
- -1034 = round(-1033.6),
-
- % OTP-3722:
- X = (1 bsl 27) - 1,
- MX = -X,
- MXm1 = -X-1,
- MXp1 = -X+1,
- F = X + 0.0,
- X = round(F),
- X = round(F+1)-1,
- X = round(F-1)+1,
- MX = round(-F),
- MXm1 = round(-F-1),
- MXp1 = round(-F+1),
-
- X = round(F+0.1),
- X = round(F+1+0.1)-1,
- X = round(F-1+0.1)+1,
- MX = round(-F+0.1),
- MXm1 = round(-F-1+0.1),
- MXp1 = round(-F+1+0.1),
-
- X = round(F-0.1),
- X = round(F+1-0.1)-1,
- X = round(F-1-0.1)+1,
- MX = round(-F-0.1),
- MXm1 = round(-F-1-0.1),
- MXp1 = round(-F+1-0.1),
-
- 0.5 = abs(round(F+0.5)-(F+0.5)),
- 0.5 = abs(round(F-0.5)-(F-0.5)),
- 0.5 = abs(round(-F-0.5)-(-F-0.5)),
- 0.5 = abs(round(-F+0.5)-(-F+0.5)),
-
- %% Bignums.
- 4294967296 = round(4294967296.1),
- 4294967297 = round(4294967296.9),
- -4294967296 = -round(4294967296.1),
- -4294967297 = -round(4294967296.9),
- ok.
-
-t_trunc(Config) when is_list(Config) ->
- 0 = trunc(0.0),
- 5 = trunc(5.3333),
- -10 = trunc(-10.978987),
- % The largest smallnum, converted to float (OTP-3722):
- X = (1 bsl 27) - 1,
- F = X + 0.0,
- io:format("X = ~p/~w/~w, F = ~p/~w/~w, trunc(F) = ~p/~w/~w~n",
- [X, X, binary_to_list(term_to_binary(X)),
- F, F, binary_to_list(term_to_binary(F)),
- trunc(F), trunc(F), binary_to_list(term_to_binary(trunc(F)))]),
- X = trunc(F),
- X = trunc(F+1)-1,
- X = trunc(F-1)+1,
- X = -trunc(-F),
- X = -trunc(-F-1)-1,
- X = -trunc(-F+1)+1,
-
- %% Bignums.
- 4294967305 = trunc(4294967305.7),
- -4294967305 = trunc(-4294967305.7),
- ok.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 18:04:36 +0000