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Fix incorrect directives

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This commit is contained in:
Denton Liu 2016-07-04 10:51:02 -04:00
parent 0db67b8895
commit cb5fc23014
1 changed files with 5 additions and 3 deletions
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docs/control-structures.rst
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@ -146,13 +146,13 @@ Complications for Arrays and Structs
The semantics of assignment are a bit more complicated for non-value types like arrays and structs. The semantics of assignment are a bit more complicated for non-value types like arrays and structs.
Assigning *to* a state variable always creates an independent copy. On the other hand, assigning to a local variable creates an independent copy only for elementary types, i.e. static types that fit into 32 bytes. If structs or arrays (including ``bytes`` and ``string``) are assigned from a state variable to a local variable, the local variable holds a reference to the original state variable. A second assignment to the local variable does not modify the state but only changes the reference. Assignments to members (or elements) of the local variable *do* change the state. Assigning *to* a state variable always creates an independent copy. On the other hand, assigning to a local variable creates an independent copy only for elementary types, i.e. static types that fit into 32 bytes. If structs or arrays (including ``bytes`` and ``string``) are assigned from a state variable to a local variable, the local variable holds a reference to the original state variable. A second assignment to the local variable does not modify the state but only changes the reference. Assignments to members (or elements) of the local variable *do* change the state.
.. index:: ! exception, ! throw .. index:: ! scoping, declarations, default value
.. _default-value:
Scoping and Declarations Scoping and Declarations
======================== ========================
.. index:: ! scoping, ! declarations, ! default-value
In Solidity, a variable which is declared is automatically assigned its default value. It will be assigned on contract In Solidity, a variable which is declared is automatically assigned its default value. It will be assigned on contract
initialization if it is a contract-level variable or at the beginning of a function call if it is a local variable. initialization if it is a contract-level variable or at the beginning of a function call if it is a local variable.
This is because the EVM must run deterministically so it would be inappropriate to initialize any variables to random garbage values. This is because the EVM must run deterministically so it would be inappropriate to initialize any variables to random garbage values.
@ -213,6 +213,8 @@ As a result, the following code is legal, despite being poorly written::
return bar;// returns 5 return bar;// returns 5
} }
.. index:: ! exception, ! throw
Exceptions Exceptions
========== ==========