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| -rw-r--r-- | docs/frequently-asked-questions.rst | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/docs/frequently-asked-questions.rst b/docs/frequently-asked-questions.rst index e64849ea..17e71747 100644 --- a/docs/frequently-asked-questions.rst +++ b/docs/frequently-asked-questions.rst @@ -273,9 +273,11 @@ of variable it concerns: * state variables are always in storage * function arguments are in memory by default -* local variables of struct, array or mapping type reference storage by default +* local variables of mapping type reference storage by default * local variables of value type (i.e. neither array, nor struct nor mapping) are stored in the stack +For local variables of struct or array type the storage location has to be stated explicitly. + Example:: pragma solidity ^0.4.0; @@ -309,8 +311,9 @@ carry back to ``data1`` or ``data2``. .. warning:: Prior to version 0.5.0, a common mistake was to declare a local variable and assume that it will be created in memory, although it will be created in storage. Using such a variable without initializing - it could lead to unexpected behavior. Starting from 0.5.0, however, storage variables have to be initialized, - which should prevent these kinds of mistakes. + could lead to unexpected behavior. Starting from 0.5.0, however, the storage location for local variables + has to be specified explicitly and local storage variables have to be initialized, which should prevent + these kinds of mistakes. ****************** Advanced Questions |