ExceptionWithStackTrace.cc

#include <exception>
#include <string>
#include <sstream>
#include <execinfo.h>
#include <cxxabi.h>
#include <vector>

class ExceptionWithStackTrace : public std::exception {
public:
    explicit ExceptionWithStackTrace(const std::string& message)
        : message_(message), stackTrace_(captureStackTrace()) {}

    const char* what() const noexcept override {
        return message_.c_str();
    }

    const std::string& stackTrace() const {
        return stackTrace_;
    }

private:
    std::string message_;
    std::string stackTrace_;

    static std::string captureStackTrace() {
        constexpr int maxFrames = 64;
        void* frames[maxFrames];
        int numFrames = backtrace(frames, maxFrames);

        char** symbols = backtrace_symbols(frames, numFrames);
        std::ostringstream stack;
        for (int i = 0; i < numFrames; ++i) {
            stack << symbols[i] << '\n';
        }
        free(symbols);
        return stack.str();
    }
};

int main() {
    try {
        throw ExceptionWithStackTrace("An error occurred!");
    } catch (const ExceptionWithStackTrace& ex) {
        std::cerr << "Error: " << ex.what() << "\nStack trace:\n" << ex.stackTrace();
    }
    return 0;
}