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synced 2026-04-27 19:09:47 +03:00
Andrew Kelley
77d2ad8c92
It's better to avoid references to this global variable, but, in the cases where it's needed, such as in std.debug.print and collecting stack traces, better to share the same instance.
20 lines
806 B
Zig
20 lines
806 B
Zig
pub fn main() !void {
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var arena_state: std.heap.ArenaAllocator = .init(std.heap.page_allocator);
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defer arena_state.deinit();
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const arena = arena_state.allocator();
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const args = try std.process.argsAlloc(arena);
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if (args.len != 3) return error.BadUsage; // usage: 'check_differ <path a> <path b>'
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const io = std.Io.Threaded.global_single_threaded.ioBasic();
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const contents_1 = try std.Io.Dir.cwd().readFileAlloc(io, args[1], arena, .limited(1024 * 1024 * 64)); // 64 MiB ought to be plenty
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const contents_2 = try std.Io.Dir.cwd().readFileAlloc(io, args[2], arena, .limited(1024 * 1024 * 64)); // 64 MiB ought to be plenty
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if (std.mem.eql(u8, contents_1, contents_2)) {
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return error.FilesMatch;
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}
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// success, files differ
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}
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const std = @import("std");
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