1 files changed, 10 insertions, 3 deletions
diff --git a/synth.zig b/synth.zig
index 4e74cd8..3e04407 100644
--- a/synth.zig
+++ b/synth.zig
@@ -29,6 +29,7 @@ const page_allocator = std.heap.page_allocator;
 const parseUnsigned = std.fmt.parseUnsigned;
 const print = std.debug.print;
 const std = @import("std");
+const stdout = std.fs.File.stdout;
 
 const RegisterEnum = Variables.RegisterEnum;
 const Variables = @import("Variables.zig");
@@ -52,7 +53,7 @@ const Comparison = struct {
     }
 
     pub fn format(cmp: Comparison, writer: *Writer) Writer.Error!void {
-        try writer.print("{s}{f}{f}", .{
+        try writer.print("{s} {f} {f}", .{
             switch (cmp.op) {
                 .lt => "<",
                 .lte => "<=",
@@ -68,13 +69,18 @@ const Comparison = struct {
 };
 
 pub fn main() !void {
+    var buffer: [80]u8 = undefined;
+    var writer = stdout().writer(&buffer);
     var arena = ArenaAllocator.init(page_allocator);
     defer arena.deinit();
     const allocator = arena.allocator();
     const args = try argsAlloc(allocator);
     defer argsFree(allocator, args);
     if (args.len != 4) {
-        print("Usage: taosc-synth STACK_SIZE BOTTOM_DIR TOP_DIR", .{});
+        try writer.interface.print("Usage: taosc-synth {s} {s} {s}\n", .{
+            "STACK_SIZE", "BOTTOM_DIR", "TOP_DIR",
+        });
+        try writer.interface.flush();
         exit(1);
     }
     const stack_size = try parseUnsigned(usize, args[1], 0);
@@ -91,6 +97,7 @@ pub fn main() !void {
                 for (enums.values(CompareOperator)) |op| {
                     const cmp = Comparison{ .lhs = lhs, .op = op, .rhs = rhs };
                     if (try cmp.check(bot, top))
-                        print("{f}\n", .{ cmp });
+                        try writer.interface.print("{f}\n", .{ cmp });
                 };
+    try writer.interface.flush();
 }