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array.clone()

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This commit is contained in:
Alexander Medvednikov 2019-08-12 14:41:34 +03:00
parent 32754e3b4c
commit 15a42f1f35
2 changed files with 19 additions and 0 deletions
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11
vlib/builtin/array.v
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@ -208,6 +208,17 @@ pub fn (a array) reverse() array {
return arr
}
pub fn (a array) clone() array {
arr := array {
len: a.len
cap: a.cap
element_size: a.element_size
data: malloc(a.cap * a.element_size)
}
C.memcpy(arr.data, a.data, a.cap * a.element_size)
return arr
}
//pub fn (a []int) free() {
pub fn (a array) free() {
//if a.is_slice {

8
vlib/builtin/array_test.v
View File

@ -191,3 +191,11 @@ fn test_mut_slice() {
println(n)
}
fn test_clone() {
nums := [1, 2, 3, 4, 100]
nums2 := nums.clone()
assert nums2.len == 5
assert nums2.str() == '[1, 2, 3, 4, 100]'
assert nums.slice(1, 3).str() == '[2, 3]'
}