cerc-io/solidity
11
0
Fork 0
mirror of https://github.com/ethereum/solidity synced 2023-10-03 13:03:40 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Allocate one byte per memory byte array element instead of 32.

Browse Source
This commit is contained in:
chriseth
2017-10-16 22:29:31 +02:00
parent 7989fc4c35
commit 6001bd1406
3 changed files with 34 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
test/libsolidity/SolidityEndToEndTest.cpp
+24
View File
@@ -7309,6 +7309,30 @@ BOOST_AUTO_TEST_CASE(create_memory_array)
ABI_CHECK(callContractFunction("f()"), encodeArgs(string("A"), u256(8), u256(4), string("B")));
}
BOOST_AUTO_TEST_CASE(create_memory_array_allocation_size)
{
// Check allocation size of byte array. Should be 32 plus length rounded up to next
// multiple of 32
char const* sourceCode = R"(
contract C {
function f() pure returns (uint d1, uint d2, uint d3) {
bytes memory b1 = new bytes(31);
bytes memory b2 = new bytes(32);
bytes memory b3 = new bytes(256);
bytes memory b4 = new bytes(31);
assembly {
d1 := sub(b2, b1)
d2 := sub(b3, b2)
d3 := sub(b4, b3)
}
}
}
)";
compileAndRun(sourceCode);
ABI_CHECK(callContractFunction("f()"), encodeArgs(0x40, 0x40, 0x20 + 256));
}
BOOST_AUTO_TEST_CASE(memory_arrays_of_various_sizes)
{
// Computes binomial coefficients the chinese way