871041532 / zstring Goto Github PK

运行环境：Unity2018.3.9f1
Scripting Runtime Version:.NET 4.x Equivalent

部分Log:

Failed running C:\Program Files\Unity2018.3.9f1\Editor\Data\il2cpp/build/il2cpp.exe --convert-to-cpp --emit-null-checks --enable-array-bounds-check --dotnetprofile="unityaot" --compile-cpp --libil2cpp-static --platform="Android" --architecture="ARM64" --configuration="Release" --outputpath="F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\assets\bin\Data\Native\arm64-v8a\libil2cpp.so" --cachedirectory="F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Assets..\Library\il2cpp_android_arm64-v8a/il2cpp_cache" --additional-include-directories="C:\Program Files\Unity2018.3.9f1\Editor\Data\PlaybackEngines\AndroidPlayer/Tools\bdwgc/include" --additional-include-directories="C:\Program Files\Unity2018.3.9f1\Editor\Data\PlaybackEngines\AndroidPlayer/Tools\libil2cpp/include" --tool-chain-path="E:/Workspace/Android/android-ndk-r16b" --map-file-parser="C:\Program Files\Unity2018.3.9f1\Editor\Data\Tools\MapFileParser\MapFileParser.exe" --directory="F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\assets\bin\Data\Managed" --generatedcppdir="F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput"

stdout:
Building libil2cpp.so with AndroidToolChain
Output directory: F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\assets\bin\Data\Native\arm64-v8a
Cache directory: F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Library\il2cpp_android_arm64-v8a\il2cpp_cache
il2cpp.exe didn't catch exception: Unity.IL2CPP.Building.BuilderFailedException: F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31352:5: error: use of undeclared identifier 'Byte8192_t859D083D49C0C1A52B1796E8E2EFFA0BF9A466BA'
*(Byte8192_t859D083D49C0C1A52B1796E8E2EFFA0BF9A466BA )L_4 = ((Byte8192_t859D083D49C0C1A52B1796E8E2EFFA0BF9A466BA *)L_5);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31352:57: error: expected expression
*(Byte8192_t859D083D49C0C1A52B1796E8E2EFFA0BF9A466BA )L_4 = ((Byte8192_t859D083D49C0C1A52B1796E8E2EFFA0BF9A466BA *)L_5);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31389:5: error: use of undeclared identifier 'Byte4096_tBD6CE6ABF553314AC5B27C97D2F9692C61365E5C'
*(Byte4096_tBD6CE6ABF553314AC5B27C97D2F9692C61365E5C )L_13 = ((Byte4096_tBD6CE6ABF553314AC5B27C97D2F9692C61365E5C *)L_14);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31389:57: error: expected expression
*(Byte4096_tBD6CE6ABF553314AC5B27C97D2F9692C61365E5C )L_13 = ((Byte4096_tBD6CE6ABF553314AC5B27C97D2F9692C61365E5C *)L_14);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31416:5: error: use of undeclared identifier 'Byte2048_t3BCFE5D5DF98ECC0B13477DFC6128A0B6C839ABE'
*(Byte2048_t3BCFE5D5DF98ECC0B13477DFC6128A0B6C839ABE )L_20 = ((Byte2048_t3BCFE5D5DF98ECC0B13477DFC6128A0B6C839ABE *)L_21);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31416:57: error: expected expression
*(Byte2048_t3BCFE5D5DF98ECC0B13477DFC6128A0B6C839ABE )L_20 = ((Byte2048_t3BCFE5D5DF98ECC0B13477DFC6128A0B6C839ABE *)L_21);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31443:5: error: use of undeclared identifier 'Byte1024_t0BBBB4EC3D1A9026D36FE8A837171263B47F8301'
*(Byte1024_t0BBBB4EC3D1A9026D36FE8A837171263B47F8301 )L_27 = ((Byte1024_t0BBBB4EC3D1A9026D36FE8A837171263B47F8301 *)L_28);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31443:57: error: expected expression
*(Byte1024_t0BBBB4EC3D1A9026D36FE8A837171263B47F8301 )L_27 = ((Byte1024_t0BBBB4EC3D1A9026D36FE8A837171263B47F8301 *)L_28);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31470:5: error: use of undeclared identifier 'Byte512_t4F4640E213B59685AD82B74250D784210BC5B99C'
*(Byte512_t4F4640E213B59685AD82B74250D784210BC5B99C )L_34 = ((Byte512_t4F4640E213B59685AD82B74250D784210BC5B99C *)L_35);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31470:56: error: expected expression
*(Byte512_t4F4640E213B59685AD82B74250D784210BC5B99C )L_34 = ((Byte512_t4F4640E213B59685AD82B74250D784210BC5B99C *)L_35);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31497:5: error: use of undeclared identifier 'Byte256_t1348DFC1B1E3AE428A9E58A8E5637B8EA3782C69'
*(Byte256_t1348DFC1B1E3AE428A9E58A8E5637B8EA3782C69 )L_41 = ((Byte256_t1348DFC1B1E3AE428A9E58A8E5637B8EA3782C69 *)L_42);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31497:56: error: expected expression
*(Byte256_t1348DFC1B1E3AE428A9E58A8E5637B8EA3782C69 )L_41 = ((Byte256_t1348DFC1B1E3AE428A9E58A8E5637B8EA3782C69 *)L_42);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31524:5: error: use of undeclared identifier 'Byte128_t47693D60AA2F2BD06AB8D0A40E0230876B91E9E4'
*(Byte128_t47693D60AA2F2BD06AB8D0A40E0230876B91E9E4 )L_48 = ((Byte128_t47693D60AA2F2BD06AB8D0A40E0230876B91E9E4 *)L_49);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31524:56: error: expected expression
*(Byte128_t47693D60AA2F2BD06AB8D0A40E0230876B91E9E4 )L_48 = ((Byte128_t47693D60AA2F2BD06AB8D0A40E0230876B91E9E4 *)L_49);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31551:5: error: use of undeclared identifier 'Byte64_t94D3F74EF7C4D4E51931CD696F4678EC94FDFE16'
*(Byte64_t94D3F74EF7C4D4E51931CD696F4678EC94FDFE16 )L_55 = ((Byte64_t94D3F74EF7C4D4E51931CD696F4678EC94FDFE16 *)L_56);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31551:55: error: expected expression
*(Byte64_t94D3F74EF7C4D4E51931CD696F4678EC94FDFE16 )L_55 = ((Byte64_t94D3F74EF7C4D4E51931CD696F4678EC94FDFE16 *)L_56);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31578:5: error: use of undeclared identifier 'Byte32_t75FF90FC74499EFA15159627ADBA12242AC192D0'
*(Byte32_t75FF90FC74499EFA15159627ADBA12242AC192D0 )L_62 = ((Byte32_t75FF90FC74499EFA15159627ADBA12242AC192D0 *)L_63);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31578:55: error: expected expression
*(Byte32_t75FF90FC74499EFA15159627ADBA12242AC192D0 )L_62 = ((Byte32_t75FF90FC74499EFA15159627ADBA12242AC192D0 *)L_63);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31605:5: error: use of undeclared identifier 'Byte16_t8C0FAC8165912C33164D9719DA6BFE12D06DFDEF'
*(Byte16_t8C0FAC8165912C33164D9719DA6BFE12D06DFDEF )L_69 = ((Byte16_t8C0FAC8165912C33164D9719DA6BFE12D06DFDEF *)L_70);
^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.

Invocation was: Executable: "E:\Workspace\Android\android-ndk-r16b\toolchains\llvm\prebuilt\windows-x86_64\bin\clang++"
Arguments: -DNET_4_0 -DUNITY_AOT -DGC_NOT_DLL -DRUNTIME_IL2CPP -DLINUX -DANDROID -DPLATFORM_ANDROID -D__linux__ -D__STDC_FORMAT_MACROS -DTARGET_ARM64 -I"C:\Program Files\Unity2018.3.9f1\Editor\Data\PlaybackEngines\AndroidPlayer\Tools\bdwgc\include" -I"C:\Program Files\Unity2018.3.9f1\Editor\Data\PlaybackEngines\AndroidPlayer\Tools\libil2cpp\include" -I"C:\Program Files\Unity2018.3.9f1\Editor\Data\il2cpp\libil2cpp" -I"C:\Program Files\Unity2018.3.9f1\Editor\Data\il2cpp\external\boehmgc\include" -I"F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput" -I"." -I"E:\Workspace\Android\android-ndk-r16b\sources\cxx-stl\gnu-libstdc++\4.9\include" -I"E:\Workspace\Android\android-ndk-r16b\sources\cxx-stl\gnu-libstdc++\4.9\include\backward" -I"E:\Workspace\Android\android-ndk-r16b\sources\cxx-stl\gnu-libstdc++\4.9\libs\arm64-v8a\include" -c -g -DNDEBUG -funwind-tables -fno-limit-debug-info -fdata-sections -ffunction-sections -Wa,--noexecstack -fno-rtti -std=c++98 -fno-strict-aliasing -fvisibility=hidden -fvisibility-inlines-hidden -fno-strict-overflow -fPIC -Os --sysroot "E:\Workspace\Android\android-ndk-r16b\sysroot" -gcc-toolchain "E:\Workspace\Android\android-ndk-r16b\toolchains\aarch64-linux-android-4.9\prebuilt\windows-x86_64" -target aarch64-none-linux-android -isystem "E:\Workspace\Android\android-ndk-r16b\sysroot\usr\include\aarch64-linux-android" -D__ANDROID_API__=21 -march=armv8-a -Wno-unused-value "F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp" -o "F:/My/Unity/Project/TrustFramework/client/Unity/TrustFramework/Library/il2cpp_android_arm64-v8a/il2cpp_cache/1084D6449E9D3B1F950C3DF201B25368.o"

�� Unity.IL2CPP.Building.CppProgramBuilder.BuildAllCppFiles(IEnumerable`1 sourceFilesToCompile, IBuildStatisticsCollector statisticsCollector)
�� Unity.IL2CPP.Building.CppProgramBuilder.Build(IBuildStatistics& statistics)
�� il2cpp.Program.DoRun(String[] args)
�� il2cpp.Program.Run(String[] args)
�� il2cpp.Program.Main(String[] args)
stderr:

δ��������쳣: Unity.IL2CPP.Building.BuilderFailedException: F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31352:5: error: use of undeclared identifier 'Byte8192_t859D083D49C0C1A52B1796E8E2EFFA0BF9A466BA'
*(Byte8192_t859D083D49C0C1A52B1796E8E2EFFA0BF9A466BA )L_4 = ((Byte8192_t859D083D49C0C1A52B1796E8E2EFFA0BF9A466BA *)L_5);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31352:57: error: expected expression
*(Byte8192_t859D083D49C0C1A52B1796E8E2EFFA0BF9A466BA )L_4 = ((Byte8192_t859D083D49C0C1A52B1796E8E2EFFA0BF9A466BA *)L_5);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31389:5: error: use of undeclared identifier 'Byte4096_tBD6CE6ABF553314AC5B27C97D2F9692C61365E5C'
*(Byte4096_tBD6CE6ABF553314AC5B27C97D2F9692C61365E5C )L_13 = ((Byte4096_tBD6CE6ABF553314AC5B27C97D2F9692C61365E5C *)L_14);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31389:57: error: expected expression
*(Byte4096_tBD6CE6ABF553314AC5B27C97D2F9692C61365E5C )L_13 = ((Byte4096_tBD6CE6ABF553314AC5B27C97D2F9692C61365E5C *)L_14);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31416:5: error: use of undeclared identifier 'Byte2048_t3BCFE5D5DF98ECC0B13477DFC6128A0B6C839ABE'
*(Byte2048_t3BCFE5D5DF98ECC0B13477DFC6128A0B6C839ABE )L_20 = ((Byte2048_t3BCFE5D5DF98ECC0B13477DFC6128A0B6C839ABE *)L_21);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31416:57: error: expected expression
*(Byte2048_t3BCFE5D5DF98ECC0B13477DFC6128A0B6C839ABE )L_20 = ((Byte2048_t3BCFE5D5DF98ECC0B13477DFC6128A0B6C839ABE *)L_21);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31443:5: error: use of undeclared identifier 'Byte1024_t0BBBB4EC3D1A9026D36FE8A837171263B47F8301'
*(Byte1024_t0BBBB4EC3D1A9026D36FE8A837171263B47F8301 )L_27 = ((Byte1024_t0BBBB4EC3D1A9026D36FE8A837171263B47F8301 *)L_28);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31443:57: error: expected expression
*(Byte1024_t0BBBB4EC3D1A9026D36FE8A837171263B47F8301 )L_27 = ((Byte1024_t0BBBB4EC3D1A9026D36FE8A837171263B47F8301 *)L_28);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31470:5: error: use of undeclared identifier 'Byte512_t4F4640E213B59685AD82B74250D784210BC5B99C'
*(Byte512_t4F4640E213B59685AD82B74250D784210BC5B99C )L_34 = ((Byte512_t4F4640E213B59685AD82B74250D784210BC5B99C *)L_35);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31470:56: error: expected expression
*(Byte512_t4F4640E213B59685AD82B74250D784210BC5B99C )L_34 = ((Byte512_t4F4640E213B59685AD82B74250D784210BC5B99C *)L_35);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31497:5: error: use of undeclared identifier 'Byte256_t1348DFC1B1E3AE428A9E58A8E5637B8EA3782C69'
*(Byte256_t1348DFC1B1E3AE428A9E58A8E5637B8EA3782C69 )L_41 = ((Byte256_t1348DFC1B1E3AE428A9E58A8E5637B8EA3782C69 *)L_42);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31497:56: error: expected expression
*(Byte256_t1348DFC1B1E3AE428A9E58A8E5637B8EA3782C69 )L_41 = ((Byte256_t1348DFC1B1E3AE428A9E58A8E5637B8EA3782C69 *)L_42);
^
F:\My\Unity\Project\TrustFramework\client\Unity\TrustFramework\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_5.cpp:31524:5: error: use of undeclared identifier 'Byte128_t47693D60AA2F2BD06AB8D0A40E0230876B91E9E4'
*(Byte128_t47693D60AA2F2BD06AB8D0A40E0230876B91E9E4 )L_48 = ((Byte128_t47693D60AA2F2BD06AB8D0A40E0230876B91E9E4 *)L_49);
^
F:\My\Unity

Unity 设置两个文本 不同字符串， 有可能设置错误：
第一个文本字符串设置“abc” 第二个文本设置“123” （每次设置都在一个block 且 设置完都改变颜色以重置网格显示）
打印时，两个都输出正确的值，
但是会出现 第二个文本显示了"abc"的错误，第二个文本在组件上显示第一个文本的字符串"abc"
即设置给第一个文本的字符串"abc"，同时赋值给了第一个文本和第二个文本，感觉像是第二个文本的字符串被引用住了

//获取特定长度zstring private static zstring get(int length) { if (g_current_block == null || length <= 0) throw new InvalidOperationException("zstring 操作必须在一个zstring_block块中。");
如代码所示，在获取指定长度的zstring的get方法内，当length<=0时则抛出内容为“zstring 操作必须在一个zstring_block块中。”的异常，这里有两点不是太理解：一是空字符串为何要直接抛异常，二是异常的内容为何会和Block共用

并没有block()方法，但是有Block()方法，这句话是否是笔误？

rt，当Format传空字符串作为参数时，会导致抛出越界异常。看上去是下面ptr_result[i++] = arg[k++]的部分，由于arg.Length为0，因此只要进到这里就会由于调用arg[k++]导致异常。
看起来在处理字符串之前先针对arg.Length为0的情况做个处理就可以了。

` for (int i = 0, j = 0, x = 0; ; x++) // x < num_args
{
brace_idx = internal_index_of(input, '{', brace_idx + 3);
if (brace_idx == -1)
{
break;
}
next_input_idx = brace_idx;
int arg_idx = input[brace_idx + 1] - '0';
string arg = g_format_args[arg_idx]._value;
if (brace_idx == -1)
throw new InvalidOperationException("没有发现大括号{ for argument " + arg);
if (brace_idx + 2 >= input.Length || input[brace_idx + 2] != '}')
throw new InvalidOperationException("没有发现大括号} for argument " + arg);

            fixed (char* ptr_input = input)
            {
                fixed (char* ptr_result = res_value)
                {
                    for (int k = 0; i < new_len;)
                    {
                        if (j < brace_idx)
                        {
                            ptr_result[i++] = ptr_input[j++];
                            ++next_output_idx;
                        }
                        else
                        {
                            ptr_result[i++] = arg[k++];  // throw exception here if arg.Length == 0
                            ++next_output_idx;
                            if (k == arg.Length)
                            {
                                j += 3;
                                break;
                            }
                        }
                    }
                }
            }
        }`

环境：Unity版本：2020.3.21f1c1， IL2CPP打安卓包

C#崩溃示例写法：
string str = “XXXX”;（任意字符串）
zstring zs = "+‘’ + str ; (这里必崩，第一个必须是任意单字符)

` private static string __intern(string value)
{

        int hash = value.GetHashCode();
        if (g_intern_table.ContainsKey(hash))
        {
            return g_intern_table[hash];
        }
        else
        {
            string interned = new string(NEW_ALLOC_CHAR, value.Length);
            memcpy(interned, value);
            g_intern_table.Add(hash, interned);
            return interned;
        }
    }

`

using(zstring.Block()){ ... }并不适合游戏结构，建议以每帧为一个block进行回收再利用，否则UGUI或者TextMeshPro会造成文字显示不正确

int found = 0; 位置是不是有问题 放在for 循环里面

//获取value在input中自start起始下标

      private unsafe static int internal_index_of(string input, string value, int start, int count)
      {
          int input_len = input.Length;

          if (start < 0 || start >= input_len)
              throw new ArgumentOutOfRangeException("start");

          if (count < 0 || start + count > input_len)
              throw new ArgumentOutOfRangeException("count=" + count + " start+count=" + (start + count));

          if (count == 0)
              return -1;

          fixed (char* ptr_input = input)
          {
              fixed (char* ptr_value = value)
              {
                  int found = 0;
                  int end = start + count;
                  for (int i = start; i < end; i++)
                  {

正确的是不是应该是

      //获取value在input中自start起始下标

 private unsafe static int internal_index_of(string input, string value, int start, int count)
       {
           int input_len = input.Length;

           if (start < 0 || start >= input_len)
               throw new ArgumentOutOfRangeException("start");

           if (count < 0 || start + count > input_len)
               throw new ArgumentOutOfRangeException("count=" + count + " start+count=" + (start + count));

           if (count == 0)
               return -1;

           fixed (char* ptr_input = input)
           {
               fixed (char* ptr_value = value)
               {                
                   int end = start + count;
                   for (int i = start; i < end; i++)
                   {
                           int found = 0;

如果输入0.06，DecimalAccuracy设为2，则原来的只会输出0.6，是不对的，建议修改如下

            int mul = (int)Math.Pow(10, DecimalAccuracy); // 2
            int number = (int)(value * mul); // gets the number as a whole, e.g. 6
            int left_num = number / mul; // left part of the decimal point, e.g. 0
            int right_num = number % mul; // right part of the decimal pnt, e.g. 6
            int left_digit_count = get_digit_count(left_num); // e.g. 1
            int right_digit_count = DecimalAccuracy; // e.g. 2
            int total = left_digit_count + right_digit_count + 1; // +1 for '.'

rt，zstring类对象在调用Equals与非空对象比较时会抛空。看起来是由于Equals内会将obj转为zstring类并进行非空判定，但重写的!=运算符号直接尝试获取left与right的value导致的

` public override bool Equals(object obj)
{
if (obj == null)
return ReferenceEquals(this, null);

        var gstr = obj as zstring;
        if (gstr != null)
            return gstr._value == this._value;

        var str = obj as string;
        if (str != null)
            return str == this._value;

        return false;
    }`

public static bool operator !=(zstring left, zstring right) { return !(left._value == right._value); }

public int LastIndexOf(string value)
{
int idx = -1;
int last_find = -1;
while (true)
{
idx = internal_index_of(this._value, value, idx + value.Length);
last_find = idx;
if (idx == -1 || idx + value.Length >= this._value.Length)
break;
}
return last_find;
}
当internal_index_of() 返回-1时， last_find = idx;会覆盖上次的值，导致最终返回-1，
应该调整至if判断之后：
public int LastIndexOf(string value)
{
int idx = -1;
int last_find = -1;
while (true)
{
idx = internal_index_of(this._value, value, idx + value.Length);
if (idx == -1 || idx + value.Length >= this._value.Length)
break;
last_find = idx;
}
return last_find;
}