Function CountFileCharNum

demo_example/CountChar.cpp:49–52

}

Lazy<int> CountFileCharNum(const std::string &filename, char c) {
    Texts Contents = co_await ReadFile(filename);
    co_return co_await CountTextChar(Contents, c);
}

int main() {
    int Num = syncAwait(CountFileCharNum("demo_example/Input/file.txt", 'x'));