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

转载已于 2022-07-19 00:15:56 修改 · 4.5k 阅读

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原文链接：https://blog.youkuaiyun.com/yunqiushuiman/article/details/125477748

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本文介绍了TensorRT中Logger配置方法及其在不同版本中的差异，同时解决了Looser throw specifier错误，并给出了nvinferplugin调用时的具体解决方案。

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Logger 配置方法，测试ok：

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;
    }

Logger 配置方法，测试ok：

tensorrt8.2版本：

class Logger : public ILogger
{
	//void log(Severity severity, const char* msg) override
	void log(Severity severity, nvinfer1::AsciiChar const* msg) noexcept override
	{
		// suppress info-level messages
		if (severity <= Severity::kWARNING)
			std::cout << msg << std::endl;
	}
} ggLogger;

旧版本报错：

error: ‘nvinfer1::AsciiChar’ has not been declared

解决方法：

class Logger : public ILogger
{
	void log(Severity severity, const char* msg) override
	//void log(Severity severity, nvinfer1::AsciiChar const* msg) noexcept override
	{
		// suppress info-level messages
		if (severity <= Severity::kWARNING)
			std::cout << msg << std::endl;
	}
} ggLogger;

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.youkuaiyun.com/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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版权声明：本文为优快云博主「云秋水慢」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.youkuaiyun.com/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-优快云博客