diff options
author | Petr Houška <houskape@gmail.com> | 2020-02-08 22:57:43 +0100 |
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committer | GitHub <noreply@github.com> | 2020-02-08 22:57:43 +0100 |
commit | 3869472f749e74f554eda136654ec9d098cf0fb7 (patch) | |
tree | 37fd26d15de348ea989bea9c1672e260d014ba03 /go.html.markdown | |
parent | e021d05c2f02018bcd7d13c7b455c7db56faf386 (diff) |
[go/en] Clarify safety of local variable address taking.
Diffstat (limited to 'go.html.markdown')
-rw-r--r-- | go.html.markdown | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/go.html.markdown b/go.html.markdown index 49f1ade4..ec812f20 100644 --- a/go.html.markdown +++ b/go.html.markdown @@ -168,10 +168,11 @@ func learnNamedReturns(x, y int) (z int) { // Go is fully garbage collected. It has pointers but no pointer arithmetic. // You can make a mistake with a nil pointer, but not by incrementing a pointer. +// Unlike in C/Cpp taking and returning an address of a local varible is also safe. func learnMemory() (p, q *int) { // Named return values p and q have type pointer to int. p = new(int) // Built-in function new allocates memory. - // The allocated int is initialized to 0, p is no longer nil. + // The allocated int slice is initialized to 0, p is no longer nil. s := make([]int, 20) // Allocate 20 ints as a single block of memory. s[3] = 7 // Assign one of them. r := -2 // Declare another local variable. |