make all comments C-style

3 files changed, 40 insertions, 35 deletions

diff --git a/lodepng.cpp b/lodepng.cpp
index 7f1b1c1..c5298cb 100644
--- a/lodepng.cpp
+++ b/lodepng.cpp
@@ -1,7 +1,7 @@
 /*
-LodePNG version 20141130
+LodePNG version 20150321
 
-Copyright (c) 2005-2014 Lode Vandevenne
+Copyright (c) 2005-2015 Lode Vandevenne
 
 This software is provided 'as-is', without any express or implied
 warranty. In no event will the authors be held liable for any damages
@@ -42,6 +42,8 @@ Rename this file to lodepng.cpp to use it for C++, or to lodepng.c to use it for
 #pragma warning( disable : 4996 ) /*VS does not like fopen, but fopen_s is not standard C so unusable here*/
 #endif /*_MSC_VER */
 
+const char* LODEPNG_VERSION_STRING = "20150321";
+
 /*
 This source file is built up in the following large parts. The code sections
 with the "LODEPNG_COMPILE_" #defines divide this up further in an intermixed way.
@@ -5939,7 +5941,7 @@ void save_file(const std::vector<unsigned char>& buffer, const std::string& file
   std::ofstream file(filename.c_str(), std::ios::out|std::ios::binary);
   file.write(buffer.empty() ? 0 : (char*)&buffer[0], std::streamsize(buffer.size()));
 }
-#endif //LODEPNG_COMPILE_DISK
+#endif /* LODEPNG_COMPILE_DISK */
 
 #ifdef LODEPNG_COMPILE_ZLIB
 #ifdef LODEPNG_COMPILE_DECODER
@@ -5962,7 +5964,7 @@ unsigned decompress(std::vector<unsigned char>& out, const std::vector<unsigned
 {
   return decompress(out, in.empty() ? 0 : &in[0], in.size(), settings);
 }
-#endif //LODEPNG_COMPILE_DECODER
+#endif /* LODEPNG_COMPILE_DECODER */
 
 #ifdef LODEPNG_COMPILE_ENCODER
 unsigned compress(std::vector<unsigned char>& out, const unsigned char* in, size_t insize,
@@ -5984,8 +5986,8 @@ unsigned compress(std::vector<unsigned char>& out, const std::vector<unsigned ch
 {
   return compress(out, in.empty() ? 0 : &in[0], in.size(), settings);
 }
-#endif //LODEPNG_COMPILE_ENCODER
-#endif //LODEPNG_COMPILE_ZLIB
+#endif /* LODEPNG_COMPILE_ENCODER */
+#endif /* LODEPNG_COMPILE_ZLIB */
 
 
 #ifdef LODEPNG_COMPILE_PNG
@@ -6067,8 +6069,8 @@ unsigned decode(std::vector<unsigned char>& out, unsigned& w, unsigned& h, const
   load_file(buffer, filename);
   return decode(out, w, h, buffer, colortype, bitdepth);
 }
-#endif //LODEPNG_COMPILE_DECODER
-#endif //LODEPNG_COMPILE_DISK
+#endif /* LODEPNG_COMPILE_DECODER */
+#endif /* LODEPNG_COMPILE_DISK */
 
 #ifdef LODEPNG_COMPILE_ENCODER
 unsigned encode(std::vector<unsigned char>& out, const unsigned char* in, unsigned w, unsigned h,
@@ -6134,8 +6136,8 @@ unsigned encode(const std::string& filename,
   if(lodepng_get_raw_size_lct(w, h, colortype, bitdepth) > in.size()) return 84;
   return encode(filename, in.empty() ? 0 : &in[0], w, h, colortype, bitdepth);
 }
-#endif //LODEPNG_COMPILE_DISK
-#endif //LODEPNG_COMPILE_ENCODER
-#endif //LODEPNG_COMPILE_PNG
-} //namespace lodepng
+#endif /* LODEPNG_COMPILE_DISK */
+#endif /* LODEPNG_COMPILE_ENCODER */
+#endif /* LODEPNG_COMPILE_PNG */
+} /* namespace lodepng */
 #endif /*LODEPNG_COMPILE_CPP*/
diff --git a/lodepng.h b/lodepng.h
index 9f6836f..9246cb3 100644
--- a/lodepng.h
+++ b/lodepng.h
@@ -1,7 +1,7 @@
 /*
-LodePNG version 20141130
+LodePNG version 20150321
 
-Copyright (c) 2005-2014 Lode Vandevenne
+Copyright (c) 2005-2015 Lode Vandevenne
 
 This software is provided 'as-is', without any express or implied
 warranty. In no event will the authors be held liable for any damages
@@ -33,7 +33,7 @@ freely, subject to the following restrictions:
 #include <string>
 #endif /*__cplusplus*/
 
-#define LODEPNG_VERSION_STRING "20141130"
+extern const char* LODEPNG_VERSION_STRING;
 
 /*
 The following #defines are used to create code sections. They can be disabled
@@ -213,8 +213,8 @@ Same as the other decode functions, but instead takes a filename as input.
 unsigned decode(std::vector<unsigned char>& out, unsigned& w, unsigned& h,
                 const std::string& filename,
                 LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8);
-#endif //LODEPNG_COMPILE_DISK
-#endif //LODEPNG_COMPILE_DECODER
+#endif /* LODEPNG_COMPILE_DISK */
+#endif /* LODEPNG_COMPILE_DECODER */
 
 #ifdef LODEPNG_COMPILE_ENCODER
 /*Same as lodepng_encode_memory, but encodes to an std::vector. colortype
@@ -237,9 +237,9 @@ unsigned encode(const std::string& filename,
 unsigned encode(const std::string& filename,
                 const std::vector<unsigned char>& in, unsigned w, unsigned h,
                 LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8);
-#endif //LODEPNG_COMPILE_DISK
-#endif //LODEPNG_COMPILE_ENCODER
-} //namespace lodepng
+#endif /* LODEPNG_COMPILE_DISK */
+#endif /* LODEPNG_COMPILE_ENCODER */
+} /* namespace lodepng */
 #endif /*LODEPNG_COMPILE_CPP*/
 #endif /*LODEPNG_COMPILE_PNG*/
 
@@ -629,7 +629,7 @@ typedef struct LodePNGState
   LodePNGInfo info_png; /*info of the PNG image obtained after decoding*/
   unsigned error;
 #ifdef LODEPNG_COMPILE_CPP
-  //For the lodepng::State subclass.
+  /* For the lodepng::State subclass. */
   virtual ~LodePNGState(){}
 #endif
 } LodePNGState;
@@ -811,7 +811,7 @@ unsigned lodepng_save_file(const unsigned char* buffer, size_t buffersize, const
 #endif /*LODEPNG_COMPILE_DISK*/
 
 #ifdef LODEPNG_COMPILE_CPP
-//The LodePNG C++ wrapper uses std::vectors instead of manually allocated memory buffers.
+/* The LodePNG C++ wrapper uses std::vectors instead of manually allocated memory buffers. */
 namespace lodepng
 {
 #ifdef LODEPNG_COMPILE_PNG
@@ -825,7 +825,7 @@ class State : public LodePNGState
 };
 
 #ifdef LODEPNG_COMPILE_DECODER
-//Same as other lodepng::decode, but using a State for more settings and information.
+/* Same as other lodepng::decode, but using a State for more settings and information. */
 unsigned decode(std::vector<unsigned char>& out, unsigned& w, unsigned& h,
                 State& state,
                 const unsigned char* in, size_t insize);
@@ -835,7 +835,7 @@ unsigned decode(std::vector<unsigned char>& out, unsigned& w, unsigned& h,
 #endif /*LODEPNG_COMPILE_DECODER*/
 
 #ifdef LODEPNG_COMPILE_ENCODER
-//Same as other lodepng::encode, but using a State for more settings and information.
+/* Same as other lodepng::encode, but using a State for more settings and information. */
 unsigned encode(std::vector<unsigned char>& out,
                 const unsigned char* in, unsigned w, unsigned h,
                 State& state);
@@ -856,31 +856,31 @@ Save the binary data in an std::vector to a file on disk. The file is overwritte
 without warning.
 */
 void save_file(const std::vector<unsigned char>& buffer, const std::string& filename);
-#endif //LODEPNG_COMPILE_DISK
-#endif //LODEPNG_COMPILE_PNG
+#endif /* LODEPNG_COMPILE_DISK */
+#endif /* LODEPNG_COMPILE_PNG */
 
 #ifdef LODEPNG_COMPILE_ZLIB
 #ifdef LODEPNG_COMPILE_DECODER
-//Zlib-decompress an unsigned char buffer
+/* Zlib-decompress an unsigned char buffer */
 unsigned decompress(std::vector<unsigned char>& out, const unsigned char* in, size_t insize,
                     const LodePNGDecompressSettings& settings = lodepng_default_decompress_settings);
 
-//Zlib-decompress an std::vector
+/* Zlib-decompress an std::vector */
 unsigned decompress(std::vector<unsigned char>& out, const std::vector<unsigned char>& in,
                     const LodePNGDecompressSettings& settings = lodepng_default_decompress_settings);
-#endif //LODEPNG_COMPILE_DECODER
+#endif /* LODEPNG_COMPILE_DECODER */
 
 #ifdef LODEPNG_COMPILE_ENCODER
-//Zlib-compress an unsigned char buffer
+/* Zlib-compress an unsigned char buffer */
 unsigned compress(std::vector<unsigned char>& out, const unsigned char* in, size_t insize,
                   const LodePNGCompressSettings& settings = lodepng_default_compress_settings);
 
-//Zlib-compress an std::vector
+/* Zlib-compress an std::vector */
 unsigned compress(std::vector<unsigned char>& out, const std::vector<unsigned char>& in,
                   const LodePNGCompressSettings& settings = lodepng_default_compress_settings);
-#endif //LODEPNG_COMPILE_ENCODER
-#endif //LODEPNG_COMPILE_ZLIB
-} //namespace lodepng
+#endif /* LODEPNG_COMPILE_ENCODER */
+#endif /* LODEPNG_COMPILE_ZLIB */
+} /* namespace lodepng */
 #endif /*LODEPNG_COMPILE_CPP*/
 
 /*
@@ -1704,5 +1704,5 @@ Domain: gmail dot com.
 Account: lode dot vandevenne.
 
 
-Copyright (c) 2005-2014 Lode Vandevenne
+Copyright (c) 2005-2015 Lode Vandevenne
 */
diff --git a/lodepng_unittest.cpp b/lodepng_unittest.cpp
index 032dc07..93801a2 100644
--- a/lodepng_unittest.cpp
+++ b/lodepng_unittest.cpp
@@ -34,6 +34,9 @@ g++ lodepng.cpp lodepng_util.cpp lodepng_unittest.cpp -Wall -Wextra -Wshadow -pe
 *) Compile with pure ISO C90 and all warnings:
 mv lodepng.cpp lodepng.c ; gcc -I ./ lodepng.c examples/example_decode.c -ansi -pedantic -Wall -Wextra -O3 ; mv lodepng.c lodepng.cpp
 
+*) Compile with C with -pedantic but not -ansi flag so it warns about // style comments in C++-only ifdefs
+mv lodepng.cpp lodepng.c ; gcc -I ./ lodepng.c examples/example_decode.c -pedantic -Wall -Wextra -O3 ; mv lodepng.c lodepng.cpp
+
 *) try lodepng_benchmark.cpp
 g++ lodepng.cpp lodepng_benchmark.cpp -Wall -Wextra -pedantic -ansi -lSDL -O3 && ./a.out