tensorrt c++报错：

错误    C2694    “void Logger::log(nvinfer1::ILogger::Severity,const char *)”: 重写虚函数的限制性异常规范比基类虚成员函数

问题：“Looser throw specifier for ‘xxxxxxxxxx’”
例子：
looser throw specifier for ‘virtual void Logger::log(nvinfer1::ILogger::Severity, const char*)’

解决：参考链接
在函数中加入noexcept
因为，在tensorrt8.0版本中函数的定义是：

void Logger::log(Severity severity, const char* msg) noexcept

所以自己的报错的函数对应也改为：

 virtual void log(Severity severity, const char* msg) noexcept override;

我的修改后的代码： 

void log(Severity severity, const char* msg) noexcept override
    {
        LogStreamConsumer(mReportableSeverity, severity) << "[TRT] " << std::string(msg) << std::endl;
    }

其他报错Looser throw specifier的同样解决方法，增加noexcept。

问题2：nvinfer plugin调用
参考链接：https://blog.csdn.net/XCCCCZ/article/details/121301106
报错如下：yololayer.h(54): warning: function “nvinfer1::IPluginV2::enqueue(int32_t, const void *const *, void *const *, void *, cudaStream_t)” is hidden by “nvinfer1::YoloLayerPlugin::enqueue” – virtual function override intended?

yololayer.cu(156): error: object of abstract class type “nvinfer1::YoloLayerPlugin” is not allowed:

pure virtual function “nvinfer1::IPluginV2::enqueue” has no overrider

yololayer.cu(299): error: object of abstract class type “nvinfer1::YoloLayerPlugin” is not allowed:
pure virtual function “nvinfer1::IPluginV2::enqueue” has no overrider

yololayer.cu(308): error: object of abstract class type “nvinfer1::YoloLayerPlugin” is not allowed:
pure virtual function “nvinfer1::IPluginV2::enqueue” has no overrider

解决方法：将virtual int enqueue(int batchSize, const voidconst * inputs, void** outputs, void workspace, cudaStream_t stream) override;改成virtual int32_t enqueue(int32_t batchSize, void const* const* inputs, void* const* outputs, void* workspace, cudaStream_t stream) noexcept;
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原文链接：https://blog.csdn.net/yunqiushuiman/article/details/125477748

这篇讲的差不多：

error: looser throw specifier for ‘virtual void Logger::log(nvinfer1::ILogger::Severity, const_lxx1481932986的博客-CSDN博客