/ Changes On Branch stdint.h
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Changes In Branch stdint.h Excluding Merge-Ins

This is equivalent to a diff from 6a5dfe85b5 to ad3124c834

2015-12-10
17:59
Move pointer range comparisons into a macro, where they can be dealt with in a more portable way. (check-in: 05bc4f920c user: drh tags: trunk)
15:09
Move pointer range comparisons into a macro, where they can be dealt with in a more portable way. (Closed-Leaf check-in: ad3124c834 user: drh tags: stdint.h)
2015-12-09
17:23
Further simplifications to the VDBE code generation logic that flow out of the previous check-in. (check-in: 6a5dfe85b5 user: drh tags: trunk)
16:26
Simplification of the DROP TRIGGER logic using sqlite3NestedParse() instead of hand-coded VDBE code. This is a manual cherry-pick of the key change from check-in [c80bbf14b365d]. (check-in: 8021b4c813 user: drh tags: trunk)

Changes to src/btree.c.

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      ** was either part of sibling page iOld (possibly an overflow cell), 
      ** or else the divider cell to the left of sibling page iOld. So,
      ** if sibling page iOld had the same page number as pNew, and if
      ** pCell really was a part of sibling page iOld (not a divider or
      ** overflow cell), we can skip updating the pointer map entries.  */
      if( iOld>=nNew
       || pNew->pgno!=aPgno[iOld]
#ifdef HAVE_STDINT_H
       || (intptr_t)pCell<(intptr_t)aOld
       || (intptr_t)pCell>=(intptr_t)&aOld[usableSize]
#else
       || pCell<aOld
       || pCell>=&aOld[usableSize]
       || !SQLITE_WITHIN(pCell,aOld,&aOld[usableSize])
#endif
      ){
        if( !leafCorrection ){
          ptrmapPut(pBt, get4byte(pCell), PTRMAP_BTREE, pNew->pgno, &rc);
        }
        if( cachedCellSize(&b,i)>pNew->minLocal ){
          ptrmapPutOvflPtr(pNew, pCell, &rc);
        }

Changes to src/malloc.c.

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    ** is outstanding at one time.  (This is only checked in the
    ** single-threaded case since checking in the multi-threaded case
    ** would be much more complicated.) */
    assert( scratchAllocOut>=1 && scratchAllocOut<=2 );
    scratchAllocOut--;
#endif

    if( p>=sqlite3GlobalConfig.pScratch && p<mem0.pScratchEnd ){
    if( SQLITE_WITHIN(p, sqlite3GlobalConfig.pScratch, mem0.pScratchEnd) ){
      /* Release memory from the SQLITE_CONFIG_SCRATCH allocation */
      ScratchFreeslot *pSlot;
      pSlot = (ScratchFreeslot*)p;
      sqlite3_mutex_enter(mem0.mutex);
      pSlot->pNext = mem0.pScratchFree;
      mem0.pScratchFree = pSlot;
      mem0.nScratchFree++;
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}

/*
** TRUE if p is a lookaside memory allocation from db
*/
#ifndef SQLITE_OMIT_LOOKASIDE
static int isLookaside(sqlite3 *db, void *p){
  return p>=db->lookaside.pStart && p<db->lookaside.pEnd;
  return SQLITE_WITHIN(p, db->lookaside.pStart, db->lookaside.pEnd);
}
#else
#define isLookaside(A,B) 0
#endif

/*
** Return the size of a memory allocation previously obtained from

Changes to src/sqliteInt.h.

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# 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))
#endif

/*
** The SQLITE_WITHIN(P,S,E) macro checks to see if pointer P points to
** something between S (inclusive) and E (exclusive).
**
** In other words, S is a buffer and E is a pointer to the first byte after
** the end of buffer S.  This macro returns true if P points to something
** contained within the buffer S.
*/
#if defined(HAVE_STDINT_H)
# define SQLITE_WITHIN(P,S,E) \
    ((uintptr_t)(P)>=(uintptr_h)(S) && (uintptr_t)(P)<(uintptr_t)(E))
#else
# define SQLITE_WITHIN(P,S,E) ((P)>=(S) && (P)<(E))
#endif

/*
** A macro to hint to the compiler that a function should not be
** inlined.
*/
#if defined(__GNUC__)
#  define SQLITE_NOINLINE  __attribute__((noinline))
#elif defined(_MSC_VER) && _MSC_VER>=1310