add readfile example

Author: tbhaxor

CMakeLists.txt

@@ -8,4 +8,5 @@ set(CXX_STANDARD_REQUIRED ON)
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 
 
-add_subdirectory(WritingFile)
+add_subdirectory(WritingFile)
+add_subdirectory(ReadingFile)

ReadingFile/CMakeLists.txt

@@ -0,0 +1,3 @@
+project(ReadingFile)
+
+add_executable(${PROJECT_NAME} main.cpp)

ReadingFile/main.cpp

@@ -0,0 +1,33 @@
+#include <fstream>
+#include <iostream>
+#include <regex>
+#include <string>
+
+int main(int argc, char **argv) {
+  if (argc < 2) {
+    std::cerr << "usage: " << argv[0] << " <filename>\n";
+    return 0x1;
+  }
+
+  std::ifstream *file = new std::ifstream();
+
+  file->open(argv[1], std::ios::in); // open file with in mode
+
+  if (file->is_open()) {
+    std::string data;
+
+    // read file until eof is hit
+    while (!file->eof()) {
+      std::getline(*file, data);
+      std::cout << data << std::endl;
+    }
+  } else {
+    std::cerr << "Unable to open file \n";
+  }
+
+  file->close(); // close handle
+
+  delete file;
+  file = nullptr;
+  return 0x0;
+}