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

1 files changed, 7 insertions, 7 deletions

diff --git a/examples/example_decode.c b/examples/example_decode.c
index 1ecec3d..8f6ce39 100644
--- a/examples/example_decode.c
+++ b/examples/example_decode.c
@@ -59,11 +59,11 @@ void decodeTwoSteps(const char* filename)
   unsigned error;

   unsigned char* image;

   unsigned width, height;

-  unsigned char* png;

+  unsigned char* png = 0;

   size_t pngsize;

 

-  lodepng_load_file(&png, &pngsize, filename);

-  error = lodepng_decode32(&image, &width, &height, png, pngsize);

+  error = lodepng_load_file(&png, &pngsize, filename);

+  if(!error) error = lodepng_decode32(&image, &width, &height, png, pngsize);

   if(error) printf("error %u: %s\n", error, lodepng_error_text(error));

 

   free(png);

@@ -82,15 +82,15 @@ void decodeWithState(const char* filename)
   unsigned error;

   unsigned char* image;

   unsigned width, height;

-  unsigned char* png;

+  unsigned char* png = 0;

   size_t pngsize;

   LodePNGState state;

 

   lodepng_state_init(&state);

   /*optionally customize the state*/

 

-  lodepng_load_file(&png, &pngsize, filename);

-  error = lodepng_decode(&image, &width, &height, &state, png, pngsize);

+  error = lodepng_load_file(&png, &pngsize, filename);

+  if(!error) error = lodepng_decode(&image, &width, &height, &state, png, pngsize);

   if(error) printf("error %u: %s\n", error, lodepng_error_text(error));

 

   free(png);

@@ -107,7 +107,7 @@ int main(int argc, char *argv[])
   const char* filename = argc > 1 ? argv[1] : "test.png";

 

   decodeOneStep(filename);

-  

+

   return 0;

 }