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d61482dffc
* lib/std/collections: add HashMap.@each_entry()
* lib/std/json: fix Object.free() when object is a map
* lib/std/collections: fix allocator use in Object.{set,set_at,append}
* lib/std: add char.from_hex
* lib/std/collections: print arrays and objects compactly
* lib/std/io: fix Formatter.vprintf result
* lib/std/io/stream: rename module for ByteBuffer
* lib/std/io/stream: make Scanner a Stream reader
* lib/std/io: make std{in,err,out} return File* if no libc
29 lines
583 B
C
29 lines
583 B
C
module std::io::bytebuffer @test;
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import std::io;
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fn void! write_read()
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{
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ByteBuffer buffer;
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buffer.init(0)!;
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buffer.write("hello")!;
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char[8] bytes;
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usz n = buffer.read(bytes[..])!;
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assert(n == 5);
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assert((String)bytes[:n] == "hello");
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buffer.write("hello world")!;
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n = buffer.read(bytes[..])!;
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assert(n == bytes.len);
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assert((String)bytes[:n] == "hello wo");
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assert(buffer.read_idx == 1);
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char c = buffer.read_byte()!;
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assert(c == 'r');
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buffer.pushback_byte()!;
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n = buffer.read(bytes[..])!;
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assert((String)bytes[:n] == "rld");
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assert(buffer.read_idx == 1);
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} |