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Deprecate use of unary '+'

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The unary '+' serves no meaningful purpose in Solidity and it makes it
possible to produce typos with dagerous implications (e.g. 'a =+5 '),
so we are deprecating it.  The SyntaxChecker currently issues warnings
on the unary '+' but will still compile it for now.
This commit is contained in:
Rhett Aultman
2017-04-28 17:43:19 -07:00
parent f33614e1f7
commit e544698ad3
4 changed files with 34 additions and 1 deletions
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test/libsolidity/SolidityNameAndTypeResolution.cpp
+10 -1
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@@ -3938,12 +3938,21 @@ BOOST_AUTO_TEST_CASE(rational_unary_operation)
char const* text = R"(
contract test {
function f() {
ufixed8x16 a = +3.25;
ufixed8x16 a = 3.25;
fixed8x16 b = -3.25;
}
}
)";
CHECK_SUCCESS(text);
text = R"(
contract test {
function f() {
ufixed8x16 a = +3.25;
fixed8x16 b = -3.25;
}
}
)";
CHECK_WARNING(text,"Use of unary + is deprecated");
}
BOOST_AUTO_TEST_CASE(leading_zero_rationals_convert)