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| -rw-r--r-- | c.html.markdown | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/c.html.markdown b/c.html.markdown index 75025b0c..e6e2559e 100644 --- a/c.html.markdown +++ b/c.html.markdown @@ -433,8 +433,12 @@ int getInt(char w) { //parameter name does not need to match function prototype } /* -Functions are pass-by-value, but you can make your own references -with pointers so functions can mutate their values. +Functions are call by value. So when a function is called, the arguments passed +to the function are copies of original arguments (except arrays). Anything you +do to your arguments do not change the value of the actual argument where the +function was called. + +You can use pointers if you need to edit the original argument values. Example: in-place string reversal */ |