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Always use the stdlib.h intptr_t type for pointer-integer conversions, when

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it is available.

FossilOrigin-Name: c0d932449db3deed42a99bd948aab61e56b2d8441d7de5243688695ff04e8177
This commit is contained in:
drh
2019-07-17 19:57:55 +00:00
parent 996f5ccb33
commit 4509ffa362
3 changed files with 11 additions and 11 deletions
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8
src/sqliteInt.h
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@@ -212,15 +212,15 @@
** So we have to define the macros in different ways depending on the
** compiler.
*/
#if defined(__PTRDIFF_TYPE__) /* This case should work for GCC */
#if defined(HAVE_STDINT_H) /* Use this case if we have ANSI headers */
# define SQLITE_INT_TO_PTR(X) ((void*)(intptr_t)(X))
# define SQLITE_PTR_TO_INT(X) ((int)(intptr_t)(X))
#elif defined(__PTRDIFF_TYPE__) /* This case should work for GCC */
# define SQLITE_INT_TO_PTR(X) ((void*)(__PTRDIFF_TYPE__)(X))
# define SQLITE_PTR_TO_INT(X) ((int)(__PTRDIFF_TYPE__)(X))
#elif !defined(__GNUC__) /* Works for compilers other than LLVM */
# define SQLITE_INT_TO_PTR(X) ((void*)&((char*)0)[X])
# define SQLITE_PTR_TO_INT(X) ((int)(((char*)X)-(char*)0))
#elif defined(HAVE_STDINT_H) /* Use this case if we have ANSI headers */
# define SQLITE_INT_TO_PTR(X) ((void*)(intptr_t)(X))
# define SQLITE_PTR_TO_INT(X) ((int)(intptr_t)(X))
#else /* Generates a warning - but it always works */
# define SQLITE_INT_TO_PTR(X) ((void*)(X))
# define SQLITE_PTR_TO_INT(X) ((int)(X))