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Merge pull request #8211 from nicos99/docs-breaking-changes-5.0-clarifications

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Docs 'breaking changes 5.0' clarifications
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chriseth 2020-01-29 09:11:58 +01:00 committed by GitHub
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docs/050-breaking-changes.rst
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@ -63,7 +63,7 @@ This section highlights changes that affect syntax and semantics.
last one only works for value types). Change every ``keccak256(a, b, c)`` to last one only works for value types). Change every ``keccak256(a, b, c)`` to
``keccak256(abi.encodePacked(a, b, c))``. Even though it is not a breaking ``keccak256(abi.encodePacked(a, b, c))``. Even though it is not a breaking
change, it is suggested that developers change change, it is suggested that developers change
``x.call(bytes4(keccak256("f(uint256)"), a, b)`` to ``x.call(bytes4(keccak256("f(uint256)")), a, b)`` to
``x.call(abi.encodeWithSignature("f(uint256)", a, b))``. ``x.call(abi.encodeWithSignature("f(uint256)", a, b))``.
* Functions ``.call()``, ``.delegatecall()`` and ``.staticcall()`` now return * Functions ``.call()``, ``.delegatecall()`` and ``.staticcall()`` now return
@ -455,7 +455,7 @@ New version:
uint z = someInteger(); uint z = someInteger();
x += z; x += z;
// Throw is now disallowed. // Throw is now disallowed.
require(x > 100); require(x <= 100);
int y = -3 >> 1; int y = -3 >> 1;
require(y == -2); require(y == -2);
do { do {