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https://github.com/kanaka/mal.git
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8a19f60386
- Reorder README to have implementation list after "learning tool" bullet. - This also moves tests/ and libs/ into impls. It would be preferrable to have these directories at the top level. However, this causes difficulties with the wasm implementations which need pre-open directories and have trouble with paths starting with "../../". So in lieu of that, symlink those directories to the top-level. - Move the run_argv_test.sh script into the tests directory for general hygiene.
49 lines
1.0 KiB
Zig
49 lines
1.0 KiB
Zig
const warn = @import("std").debug.warn;
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const Allocator = @import("std").mem.Allocator;
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pub fn string_eql(a: []const u8, b: []const u8) bool {
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if(a.len != b.len) {
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return false;
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}
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const n = a.len;
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var i: usize = 0;
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while(i < n) {
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if(a[i] != b[i]) {
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return false;
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}
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i += 1;
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}
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return true;
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}
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pub fn string_copy(allocator: *Allocator, str: []const u8) ![]const u8 {
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const copy = try allocator.alloc(u8, str.len);
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var i: usize = 0;
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while(i < str.len) {
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copy[i] = str[i];
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i += 1;
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}
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return copy;
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}
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pub fn string_concat(allocator: *Allocator, s1: []const u8, s2: []const u8) ![] const u8 {
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const n: usize = s1.len + s2.len;
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var i: usize = 0;
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var pos: usize = 0;
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const copy = try allocator.alloc(u8, n);
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while(i < s1.len) {
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copy[pos] = s1[i];
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pos += 1;
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i += 1;
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}
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i = 0;
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while(i < s2.len) {
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copy[pos] = s2[i];
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pos += 1;
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i += 1;
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}
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return copy;
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}
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