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-rw-r--r--core/container/small_array/small_array.odin53
1 files changed, 50 insertions, 3 deletions
diff --git a/core/container/small_array/small_array.odin b/core/container/small_array/small_array.odin
index 49d441079..d2f0f8130 100644
--- a/core/container/small_array/small_array.odin
+++ b/core/container/small_array/small_array.odin
@@ -2,6 +2,7 @@ package container_small_array
import "base:builtin"
import "base:runtime"
+import "core:mem"
_ :: runtime
/*
@@ -250,6 +251,8 @@ set :: proc "contextless" (a: ^$A/Small_Array($N, $T), index: int, item: T) {
/*
Tries to resize the small-array to the specified length.
+The memory of added elements will be zeroed out.
+
The new length will be:
- `length` if `length` <= capacity
- capacity if length > capacity
@@ -259,7 +262,7 @@ The new length will be:
- `length`: The new desired length
Example:
-
+
import "core:container/small_array"
import "core:fmt"
@@ -269,7 +272,7 @@ Example:
small_array.push_back(&a, 1)
small_array.push_back(&a, 2)
fmt.println(small_array.slice(&a))
-
+
small_array.resize(&a, 1)
fmt.println(small_array.slice(&a))
@@ -278,12 +281,56 @@ Example:
}
Output:
-
+
[1, 2]
[1]
[1, 2, 0, 0, 0]
*/
resize :: proc "contextless" (a: ^$A/Small_Array, length: int) {
+ prev_len := a.len
+ a.len = min(length, builtin.len(a.data))
+ if prev_len < a.len {
+ mem.zero_slice(a.data[prev_len:a.len])
+ }
+}
+
+/*
+Tries to resize the small-array to the specified length.
+
+The new length will be:
+ - `length` if `length` <= capacity
+ - capacity if length > capacity
+
+**Inputs**
+- `a`: A pointer to the small-array
+- `length`: The new desired length
+
+Example:
+
+ import "core:container/small_array"
+ import "core:fmt"
+
+ resize_example :: proc() {
+ a: small_array.Small_Array(5, int)
+
+ small_array.push_back(&a, 1)
+ small_array.push_back(&a, 2)
+ fmt.println(small_array.slice(&a))
+
+ small_array.resize(&a, 1)
+ fmt.println(small_array.slice(&a))
+
+ small_array.resize(&a, 100)
+ fmt.println(small_array.slice(&a))
+ }
+
+Output:
+
+ [1, 2]
+ [1]
+ [1, 2, 0, 0, 0]
+*/
+non_zero_resize :: proc "contextless" (a: ^$A/Small_Array, length: int) {
a.len = min(length, builtin.len(a.data))
}