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https://git.code.sf.net/p/libpng/code.git
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[devel] Fix gcc -pendantic warnings, handle Cygwin longjmp fix png_read_png
This commit is contained in:
John Bowler
Glenn Randers-Pehrson
parent
6a6d79fc00
commit
9c69360e97
38
png.h
38
png.h
@ -797,35 +797,33 @@ typedef struct png_struct_def png_struct;
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typedef PNG_CONST png_struct FAR * png_const_structp;
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typedef png_struct FAR * png_structp;
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typedef PNG_CALLBACK(void, *png_error_ptr, (png_structp, png_const_charp), );
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typedef PNG_CALLBACK(void, *png_rw_ptr, (png_structp, png_bytep, png_size_t), );
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typedef PNG_CALLBACK(void, *png_flush_ptr, (png_structp), );
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typedef PNG_CALLBACK(void, *png_read_status_ptr, (png_structp, png_uint_32,
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int), );
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typedef PNG_CALLBACK(void, *png_write_status_ptr, (png_structp, png_uint_32,
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int), );
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typedef PNG_CALLBACK(void, *png_error_ptr, (png_structp, png_const_charp));
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typedef PNG_CALLBACK(void, *png_rw_ptr, (png_structp, png_bytep, png_size_t));
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typedef PNG_CALLBACK(void, *png_flush_ptr, (png_structp));
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typedef PNG_CALLBACK(void, *png_read_status_ptr, (png_structp, png_uint_32,
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int));
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typedef PNG_CALLBACK(void, *png_write_status_ptr, (png_structp, png_uint_32,
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int));
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#ifdef PNG_PROGRESSIVE_READ_SUPPORTED
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typedef PNG_CALLBACK(void, *png_progressive_info_ptr,
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(png_structp, png_infop), );
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typedef PNG_CALLBACK(void, *png_progressive_end_ptr,
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(png_structp, png_infop), );
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typedef PNG_CALLBACK(void, *png_progressive_row_ptr,
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(png_structp, png_bytep, png_uint_32, int), );
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typedef PNG_CALLBACK(void, *png_progressive_info_ptr, (png_structp, png_infop));
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typedef PNG_CALLBACK(void, *png_progressive_end_ptr, (png_structp, png_infop));
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typedef PNG_CALLBACK(void, *png_progressive_row_ptr, (png_structp, png_bytep,
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png_uint_32, int));
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#endif
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#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
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defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
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typedef PNG_CALLBACK(void, *png_user_transform_ptr,
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(png_structp, png_row_infop, png_bytep), );
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typedef PNG_CALLBACK(void, *png_user_transform_ptr, (png_structp, png_row_infop,
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png_bytep));
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#endif
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#ifdef PNG_USER_CHUNKS_SUPPORTED
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typedef PNG_CALLBACK(int, *png_user_chunk_ptr, (png_structp,
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png_unknown_chunkp), );
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typedef PNG_CALLBACK(int, *png_user_chunk_ptr, (png_structp,
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png_unknown_chunkp));
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#endif
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#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED
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typedef PNG_CALLBACK(void, *png_unknown_chunk_ptr, (png_structp), );
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typedef PNG_CALLBACK(void, *png_unknown_chunk_ptr, (png_structp));
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#endif
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#ifdef PNG_SETJMP_SUPPORTED
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@ -882,8 +880,8 @@ typedef PNG_FUNCTION(void, (PNGCAPI *png_longjmp_ptr), PNGARG((jmp_buf, int)),
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* following.
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*/
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typedef PNG_CALLBACK(png_voidp, *png_malloc_ptr, (png_structp,
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png_alloc_size_t), );
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typedef PNG_CALLBACK(void, *png_free_ptr, (png_structp, png_voidp), );
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png_alloc_size_t));
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typedef PNG_CALLBACK(void, *png_free_ptr, (png_structp, png_voidp));
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typedef png_struct FAR * FAR * png_structpp;
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59
pngconf.h
59
pngconf.h
@ -282,23 +282,15 @@
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# endif
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#endif
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/* THe following complexity is concerned with getting the 'attributes' of the
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* declared function in the correct place. This potentially requires a separate
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* PNG_EXPORT function for every compiler.
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/* In 1.5.2 the definition of PNG_FUNCTION has been changed to always treat
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* 'attributes' as a storage class - the attributes go at the start of the
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* function definition, and attributes are always appended regardless of the
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* compiler. This considerably simplifies these macros but may cause problems
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* if any compilers both need function attributes and fail to handle them as
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* a storage class (this is unlikely.)
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*/
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#ifndef PNG_FUNCTION
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# if defined(__GNUC__)
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# define PNG_FUNCTION(type, name, args, attributes)\
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attributes type name args
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# else /* !GNUC */
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# ifdef _MSC_VER
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# define PNG_FUNCTION(type, name, args, attributes)\
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attributes type name args
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# else /* !MSC */
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# define PNG_FUNCTION(type, name, args, attributes)\
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type name args
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# endif
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# endif
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# define PNG_FUNCTION(type, name, args, attributes) attributes type name args
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#endif
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#ifndef PNG_EXPORT_TYPE
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@ -311,12 +303,17 @@
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*/
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#ifndef PNG_EXPORTA
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# define PNG_EXPORTA(ordinal, type, name, args, attributes)\
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extern PNG_FUNCTION(PNG_EXPORT_TYPE(type),(PNGAPI name),PNGARG(args),\
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PNG_FUNCTION(PNG_EXPORT_TYPE(type),(PNGAPI name),PNGARG(args), extern\
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attributes)
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#endif
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/* ANSI-C (C90) does not permit a macro to be invoked with an empty argument,
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* so make something non-empty to satisfy the requirement:
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*/
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#define PNG_EMPTY /*empty list*/
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#define PNG_EXPORT(ordinal, type, name, args)\
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PNG_EXPORTA(ordinal, type, name, args, )
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PNG_EXPORTA(ordinal, type, name, args, PNG_EMPTY)
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/* Use PNG_REMOVED to comment out a removed interface. */
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#ifndef PNG_REMOVED
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@ -324,8 +321,7 @@
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#endif
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#ifndef PNG_CALLBACK
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# define PNG_CALLBACK(type, name, args, attributes)\
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type (PNGCBAPI name) PNGARG(args) attributes
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# define PNG_CALLBACK(type, name, args) type (PNGCBAPI name) PNGARG(args)
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#endif
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/* Support for compiler specific function attributes. These are used
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@ -355,7 +351,21 @@
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# define PNG_NORETURN __attribute__((__noreturn__))
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# endif
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# ifndef PNG_PTR_NORETURN
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# define PNG_PTR_NORETURN __attribute__((__noreturn__))
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/* It's not enough to have the compiler be the correct compiler at
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* this point - it's necessary for the library (which defines
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* the type of the library longjmp) to also be the GNU library.
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* This is because many systems use the GNU compiler with a
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* non-GNU libc implementation. Min/GW headers are also compatible
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* with GCC as well as uclibc, so it seems best to exclude known
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* problem libcs here rather than just including known libcs.
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*
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* NOTE: this relies on the only use of PNG_PTR_NORETURN being with
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* the system longjmp. If the same type is used elsewhere then this
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* will need to be changed.
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*/
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# if !defined(__CYGWIN__)
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# define PNG_PTR_NORETURN __attribute__((__noreturn__))
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# endif
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# endif
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# ifndef PNG_ALLOCATED
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# define PNG_ALLOCATED __attribute__((__malloc__))
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@ -380,7 +390,7 @@
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# define PNG_PRIVATE \
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__attribute__((__deprecated__))
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# endif
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# endif /* PNG_PRIVATE */
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# endif
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# endif /* PNGLIB_BUILD */
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# endif /* __GNUC__ */
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# ifdef _MSC_VER /* may need to check value */
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@ -410,9 +420,9 @@
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# endif
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# ifndef PNG_PRIVATE
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# define PNG_PRIVATE __declspec(deprecated)
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# endif /* PNG_PRIVATE */
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# endif
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# endif /* PNGLIB_BUILD */
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# endif /* __GNUC__ */
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# endif /* _MSC_VER */
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#endif /* PNG_PEDANTIC_WARNINGS */
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#ifndef PNG_DEPRECATED
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@ -424,6 +434,9 @@
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#ifndef PNG_NORETURN
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# define PNG_NORETURN /* This function does not return */
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#endif
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#ifndef PNG_PTR_NORETURN
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# define PNG_PTR_NORETURN /* This function does not return */
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#endif
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#ifndef PNG_ALLOCATED
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# define PNG_ALLOCATED /* The result of the function is new memory */
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#endif
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@ -979,7 +979,7 @@ store_pool_delete(png_store *ps, store_pool *pool)
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next->next = NULL;
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fprintf(stderr, "\t%lu bytes @ %p\n",
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(unsigned long)next->size, next+1);
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(unsigned long)next->size, (PNG_CONST void*)(next+1));
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/* The NULL means this will always return, even if the memory is
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* corrupted.
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*/
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