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std.mem.copy: update to new for loop syntax

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This commit is contained in:
Andrew Kelley 2023-02-23 16:18:15 -07:00
parent c911de825b
commit 4db5bc7b21
1 changed files with 4 additions and 9 deletions
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13
lib/std/mem.zig
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@ -196,13 +196,8 @@ test "Allocator.resize" {
/// dest.len must be >= source.len.
/// If the slices overlap, dest.ptr must be <= src.ptr.
pub fn copy(comptime T: type, dest: []T, source: []const T) void {
// TODO instead of manually doing this check for the whole array
// and turning off runtime safety, the compiler should detect loops like
// this and automatically omit safety checks for loops
@setRuntimeSafety(false);
assert(dest.len >= source.len);
for (source, 0..) |s, i|
dest[i] = s;
for (dest[0..source.len], source) |*d, s|
d.* = s;
}
/// Copy all of source into dest at position 0.
@ -611,8 +606,8 @@ test "lessThan" {
pub fn eql(comptime T: type, a: []const T, b: []const T) bool {
if (a.len != b.len) return false;
if (a.ptr == b.ptr) return true;
for (a, 0..) |item, index| {
if (b[index] != item) return false;
for (a, b) |a_elem, b_elem| {
if (a_elem != b_elem) return false;
}
return true;
}