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#include <cstddef>
 
template<size_t stack_size> struct static_task{
 
	TaskHandle_t			handle;					/// Task handle after initialization
	StaticTask_t			state;					/// Internal task state struct
	const char* const		name;					/// Task name
	const BaseType_t		affinity;				/// Task core
	const BaseType_t		basic_priority;			/// Task init priority
	const TaskFunction_t	function;				/// Task function pointer
	void* const 			ctx;					/// Task context pointer
	struct stack{
		static constexpr size_t	size = stack_size;	/// Stack size
		StackType_t 			data[stack_size];	/// Stack data pointer
	};
};
 
// Lib header
template<size_t size> esp_err_t xTaskStaticInit(static_task<size>& task_struct);
 
// Lib CPP
template<size_t size> esp_err_t xTaskStaticInit(static_task<size>& task_struct){
 
 
		task_struct.handle = xTaskCreateStaticPinnedToCore
		(
			task_struct->function,
			task_struct.name,
			task_struct.stack.size,
			task_struct.ctx,
			task_struct.basic_priority,
			task_struct.stack.data,
			&task_struct.state,
			task_struct.affinity
		);
 
		if(task_struct.handle == nullptr) { return ESP_FAIL; }
		else { return ESP_OK; }
	};
 
 
// Main CPP
 
static_task<2048> board_task = {
	.name = "board_task",
	.affinity = 1,
	.basic_priority = 5,
	.function = BoardTask,
	.ctx = nullptr,
};
 
void main(void){
 
    xTaskStaticInit(board_task);
}

prog.cpp:5:2: error: ‘TaskHandle_t’ does not name a type
  TaskHandle_t   handle;     /// Task handle after initialization
  ^~~~~~~~~~~~
prog.cpp:6:2: error: ‘StaticTask_t’ does not name a type; did you mean ‘static_task’?
  StaticTask_t   state;     /// Internal task state struct
  ^~~~~~~~~~~~
  static_task
prog.cpp:8:8: error: ‘BaseType_t’ does not name a type
  const BaseType_t  affinity;    /// Task core
        ^~~~~~~~~~
prog.cpp:9:8: error: ‘BaseType_t’ does not name a type
  const BaseType_t  basic_priority;   /// Task init priority
        ^~~~~~~~~~
prog.cpp:10:8: error: ‘TaskFunction_t’ does not name a type
  const TaskFunction_t function;    /// Task function pointer
        ^~~~~~~~~~~~~~
prog.cpp:14:3: error: ‘StackType_t’ does not name a type
   StackType_t    data[stack_size]; /// Stack data pointer
   ^~~~~~~~~~~
prog.cpp:19:23: error: ‘esp_err_t’ does not name a type
 template<size_t size> esp_err_t xTaskStaticInit(static_task<size>& task_struct);
                       ^~~~~~~~~
prog.cpp:22:23: error: ‘esp_err_t’ does not name a type
 template<size_t size> esp_err_t xTaskStaticInit(static_task<size>& task_struct){
                       ^~~~~~~~~
prog.cpp:48:14: error: ‘BoardTask’ was not declared in this scope
  .function = BoardTask,
              ^~~~~~~~~
prog.cpp:48:14: note: suggested alternative: ‘board_task’
  .function = BoardTask,
              ^~~~~~~~~
              board_task
prog.cpp:50:1: error: ‘static_task<2048>’ has no non-static data member named ‘affinity’
 };
 ^
prog.cpp:52:15: error: ‘::main’ must return ‘int’
 void main(void){
               ^
prog.cpp: In function ‘int main()’:
prog.cpp:54:5: error: ‘xTaskStaticInit’ was not declared in this scope
     xTaskStaticInit(board_task);
     ^~~~~~~~~~~~~~~

Standard output is empty