aboutsummaryrefslogtreecommitdiffstats
path: root/erts/emulator/test
diff options
context:
space:
mode:
authorBjörn Gustavsson <[email protected]>2011-05-10 10:56:24 +0200
committerBjörn Gustavsson <[email protected]>2011-08-03 11:24:52 +0200
commite8becad96454a8deb755f587ca0daaf96dfca90e (patch)
tree40ba945786f497611441f5a13f07efdf2e210879 /erts/emulator/test
parent07936436b8a8b18b80451a09e040283ebecbd43b (diff)
downloadotp-e8becad96454a8deb755f587ca0daaf96dfca90e.tar.gz
otp-e8becad96454a8deb755f587ca0daaf96dfca90e.tar.bz2
otp-e8becad96454a8deb755f587ca0daaf96dfca90e.zip
Fix construction of <<0:((1 bsl 32)-1)>>
Attempting to construct <<0:((1 bsl 32)-1)>>, the largest bitstring allowed in a 32 bit emulator, would cause an emulator crash because of integer overflow. Fix the problem by using an Uint64 to avoid integer overflow. Do not attempt to handle construction of <<0:((1 bsl 64)-1>> in a 64-bit emulator, because that will certainly cause the emulator to terminate anyway because of insufficient memory.
Diffstat (limited to 'erts/emulator/test')
-rw-r--r--erts/emulator/test/bs_construct_SUITE.erl5
1 files changed, 5 insertions, 0 deletions
diff --git a/erts/emulator/test/bs_construct_SUITE.erl b/erts/emulator/test/bs_construct_SUITE.erl
index 1959803385..ef5940d748 100644
--- a/erts/emulator/test/bs_construct_SUITE.erl
+++ b/erts/emulator/test/bs_construct_SUITE.erl
@@ -553,6 +553,11 @@ huge_float_check({'EXIT',{badarg,_}}) -> ok.
huge_binary(Config) when is_list(Config) ->
?line 16777216 = size(<<0:(id(1 bsl 26)),(-1):(id(1 bsl 26))>>),
+ ?line garbage_collect(),
+ ?line id(<<0:((1 bsl 32)-1)>>),
+ ?line garbage_collect(),
+ ?line id(<<0:(id((1 bsl 32)-1))>>),
+ ?line garbage_collect(),
ok.
system_limit(Config) when is_list(Config) ->