Irrlicht Engine

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#include <irrlicht.h>
#include <iostream>

using namespace irr;

const wchar_t* func()
{
  core::stringw Text(L"First line\nSecond line\nThird line");
  //core::stringw Text(L"text");

  core::stringc text(Text.c_str());
  std::cout << text.c_str() << std::endl;

  return Text.c_str();
}

int main()
{
  core::stringc text(func());
  std::cout << text.c_str() << std::endl;
}

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First line
Second line
Third line
pprst line
Second line
Third line

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text

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const wchar_t* func()
{
  core::stringw Text(L"First line\nSecond line\nThird line");
  // Text now contains that string in memory allocated on the heap.
 
  return Text.c_str();
  // The function will now return a pointer to that heap memory

} // UH OH - Text is destroyed, and its destructor deletes the heap memory.  That makes it fair game to be re-used.
// The pointer to the destroyed memory is returned...

int main()
{
  // ...and here's func(), returning that pointer to the destroyed memory.
  // The contents of that memory could be anything.  You're seeing a couple of characters being crapped over
  // but the entire memory could be gibberish by the time it gets passed into the constructor of text()
  core::stringc text(func());

  std::cout << text.c_str() << std::endl;
} 

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core::stringw func()
{
  core::stringw Text(L"First line\nSecond line\nThird line");

  core::stringc text(Text.c_str());
  std::cout << text.c_str() << std::endl;

  return Text;
}

int main()
{
  core::stringc text(func().c_str());
  std::cout << text.c_str() << std::endl;
} // Note that the stringw returned from func() will be implicitly destroyed here

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void func(core::stringw & outString)
{
  outString = L"First line\nSecond line\nThird line";
 
  core::stringc text(outString.c_str());
  std::cout << text.c_str() << std::endl;
}

int main()
{
  core::stringw wideString;
  func(wideString);
  core::stringc text(wideString.c_str());
  std::cout << text.c_str() << std::endl;
} // Note that wideSrting will be implicitly destroyed here

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const stringc func(){
  core::stringc Text(L"First line\nSecond line\nThird line");

  return Text;
}

int main(){
  core::stringc text = func();
  printf("%s\n", text.c_str());

  return 0;
}