Made load_file function return error if file can't be opened

1 files changed, 4 insertions, 4 deletions

diff --git a/examples/example_decode.cpp b/examples/example_decode.cpp
index 4eee6b8..76cda6e 100644
--- a/examples/example_decode.cpp
+++ b/examples/example_decode.cpp
@@ -58,8 +58,8 @@ void decodeTwoSteps(const char* filename)
   unsigned width, height;

 

   //load and decode

-  lodepng::load_file(png, filename);

-  unsigned error = lodepng::decode(image, width, height, png);

+  unsigned error = lodepng::load_file(png, filename);

+  if(!error) error = lodepng::decode(image, width, height, png);

 

   //if there's an error, display it

   if(error) std::cout << "decoder error " << error << ": " << lodepng_error_text(error) << std::endl;

@@ -76,8 +76,8 @@ void decodeWithState(const char* filename)
   unsigned width, height;

   lodepng::State state; //optionally customize this one

 

-  lodepng::load_file(png, filename); //load the image file with given filename

-  unsigned error = lodepng::decode(image, width, height, state, png);

+  unsigned error = lodepng::load_file(png, filename); //load the image file with given filename

+  if(!error) error = lodepng::decode(image, width, height, state, png);

 

   //if there's an error, display it

   if(error) std::cout << "decoder error " << error << ": "<< lodepng_error_text(error) << std::endl;