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Diffstat (limited to 'doc/manual.rst')
| -rw-r--r-- | doc/manual.rst | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/doc/manual.rst b/doc/manual.rst index 1371dba17..001402036 100644 --- a/doc/manual.rst +++ b/doc/manual.rst @@ -3603,9 +3603,17 @@ does not provide a value for the argument. The value will be reevaluated every time the function is called. .. code-block:: nim - # b is optional with 47 as its default value + # b is optional with 47 as its default value. proc foo(a: int, b: int = 47): int +Just as the comma propagates the types from right to left until the +first parameter or until a semicolon is hit, it also propagates the +default value starting from the parameter declared with it. + +.. code-block:: nim + # Both a and b are optional with 47 as their default values. + proc foo(a, b: int = 47): int + Parameters can be declared mutable and so allow the proc to modify those arguments, by using the type modifier `var`. |