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Fix additional cases of possible signed integer overflow, especially with

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regard to negation.

FossilOrigin-Name: 2d5800bd8cfc7d7f5578a71b1aeaa74b2ec4b372
This commit is contained in:
drh
2011-03-08 02:38:28 +00:00
parent 2327275b8c
commit d50ffc416f
9 changed files with 45 additions and 37 deletions
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3
src/sqliteInt.h
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@@ -1623,7 +1623,7 @@ struct Expr {
u16 flags; /* Various flags. EP_* See below */
union {
char *zToken; /* Token value. Zero terminated and dequoted */
int iValue; /* Integer value if EP_IntValue */
int iValue; /* Non-negative integer value if EP_IntValue */
} u;
/* If the EP_TokenOnly flag is set in the Expr.flags mask, then no
@@ -2906,6 +2906,7 @@ void sqlite3VdbeSetChanges(sqlite3 *, int);
int sqlite3AddInt64(i64*,i64);
int sqlite3SubInt64(i64*,i64);
int sqlite3MulInt64(i64*,i64);
int sqlite3AbsInt32(int);
const void *sqlite3ValueText(sqlite3_value*, u8);
int sqlite3ValueBytes(sqlite3_value*, u8);