mirror of
https://github.com/danbulant/Cosmos
synced 2026-05-27 22:12:25 +00:00
ad960c9a1a
- Fixed Single.ToString() on special cases (infinities, NaN and 0) and aumented the range of printable values - Fixed Double.ToString(): it always printed "Double Overrange" for a bug in opcode ldarga - Fixed opcode ldarga: the displacement of the argument variable was off of 4 bytes - Fixed opcodes shr, shr_un and shl when the shift was more that 32 bytes, added to BCL relative tests - Added BLC tests regarding BitConverter and unsafe code - Moved the meat of the code of Single.ToString() and Double.ToString() to the class StringHelper together with the analogous methods for numer types - Re-added _floatsignbit to CosmosAssembler.cs so the neg test should not fail anymore - Removed all code relative to x87 that I had left under #if false - Clean up
57 lines
1.5 KiB
C#
57 lines
1.5 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace Cosmos.Compiler.Tests.Bcl.System
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{
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using Cosmos.TestRunner;
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unsafe class UnsafeCodeTest
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{
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static long DoubleToInt64Bits(double value)
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{
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return *(long*)(&value);
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}
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static ulong Test(ref ulong a)
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{
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a = 12345678;
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return a;
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}
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public static void Execute()
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{
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long val = Int64.MaxValue;
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long* p = &val;
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long newVal = *p;
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Assert.IsTrue(val == newVal, $"Pointer deferencing failed expected {val} got {newVal}");
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/* This the same thing BitConverter does to convert a Double to a Long it should fail in this case too */
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double d = 1.0;
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long asLong = *(long*)(&d);
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byte[] hexDump;
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hexDump = BitConverter.GetBytes(asLong);
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Assert.IsTrue(asLong == 0x3FF0000000000000, "double asLong is wrong!");
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ulong aLong = 0;
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ulong retVal;
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retVal = Test(ref aLong);
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Assert.IsTrue(retVal == 12345678, "Ulong ref passing not works");
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asLong = DoubleToInt64Bits(d);
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hexDump = BitConverter.GetBytes(asLong);
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Console.WriteLine("asLong is : " + BitConverter.ToString(hexDump, 0));
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Assert.IsTrue(asLong == 0x3FF0000000000000, "DoubleToInt64Bits is wrong!");
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}
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}
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}
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