From 2bae94280058f23ba44dc3857e2b551f5894e1cb Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Mon, 27 Apr 2020 18:26:59 -0400
Subject: add ZIR compare output test case to test suite

---
 lib/std/zig.zig | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'lib/std/zig.zig')

diff --git a/lib/std/zig.zig b/lib/std/zig.zig
index dcf7842a3c..bb4f955797 100644
--- a/lib/std/zig.zig
+++ b/lib/std/zig.zig
@@ -9,6 +9,23 @@ pub const ast = @import("zig/ast.zig");
 pub const system = @import("zig/system.zig");
 pub const CrossTarget = @import("zig/cross_target.zig").CrossTarget;
 
+pub fn findLineColumn(source: []const u8, byte_offset: usize) struct { line: usize, column: usize } {
+    var line: usize = 0;
+    var column: usize = 0;
+    for (source[0..byte_offset]) |byte| {
+        switch (byte) {
+            '\n' => {
+                line += 1;
+                column = 0;
+            },
+            else => {
+                column += 1;
+            },
+        }
+    }
+    return .{ .line = line, .column = column };
+}
+
 test "" {
     @import("std").meta.refAllDecls(@This());
 }
-- 
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