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Index access to fixed bytes and byte arrays.

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This commit is contained in:
chriseth
2020-06-09 10:50:28 +02:00
committed by Leonardo Alt
parent 1e8e0ebd13
commit 2724ce9511
2 changed files with 38 additions and 2 deletions
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test/libsolidity/semanticTests/array/index_access.sol
+20
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@@ -0,0 +1,20 @@
contract C {
function to_little_endian_64(uint64 value) public pure returns (bytes memory ret) {
ret = new bytes(8);
bytes8 bytesValue = bytes8(value);
// Byteswapping during copying to bytes.
ret[0] = bytesValue[7];
ret[1] = bytesValue[6];
ret[2] = bytesValue[5];
ret[3] = bytesValue[4];
ret[4] = bytesValue[3];
ret[5] = bytesValue[2];
ret[6] = bytesValue[1];
ret[7] = bytesValue[0];
}
}
// ====
// compileViaYul: also
// ----
// to_little_endian_64(uint64): 0 -> 0x20, 8, 0x00
// to_little_endian_64(uint64): 0x0102030405060708 -> 0x20, 8, 0x0807060504030201000000000000000000000000000000000000000000000000