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In the lemon parser generator, change all hashes to unsigned to avoid

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potential problems with signed integer overflow.

FossilOrigin-Name: 8d399a03de63c15908d63ed69140ee15c6275b8d
This commit is contained in:
drh 2013-10-02 20:46:30 +00:00
parent e75fb06146
commit 01f75f2d68
3 changed files with 26 additions and 26 deletions
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12
manifest
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@ -1,5 +1,5 @@
C Bring\ssome\sfile\sformat\scomments\sin\sbtreeInt.h\sup\sto\sdate.
D 2013-10-01T20:29:30.106
C In\sthe\slemon\sparser\sgenerator,\schange\sall\shashes\sto\sunsigned\sto\savoid\npotential\sproblems\swith\ssigned\sinteger\soverflow.
D 2013-10-02T20:46:30.804
F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
F Makefile.in 5e41da95d92656a5004b03d3576e8b226858a28e
F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@ -1080,7 +1080,7 @@ F tool/fragck.tcl 5265a95126abcf6ab357f7efa544787e5963f439
F tool/genfkey.README cf68fddd4643bbe3ff8e31b8b6d8b0a1b85e20f4
F tool/genfkey.test 4196a8928b78f51d54ef58e99e99401ab2f0a7e5
F tool/getlock.c f4c39b651370156cae979501a7b156bdba50e7ce
F tool/lemon.c 680980c7935bfa1edec20c804c9e5ba4b1dd96f5
F tool/lemon.c 323e54ac86fb2393f9950219224e304620d2fb12
F tool/lempar.c 01ca97f87610d1dac6d8cd96ab109ab1130e76dc
F tool/mkautoconfamal.sh f8d8dbf7d62f409ebed5134998bf5b51d7266383
F tool/mkkeywordhash.c bb52064aa614e1426445e4b2b9b00eeecd23cc79
@ -1118,7 +1118,7 @@ F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
F tool/warnings.sh fbc018d67fd7395f440c28f33ef0f94420226381
F tool/wherecosttest.c f407dc4c79786982a475261866a161cd007947ae
F tool/win/sqlite.vsix 030f3eeaf2cb811a3692ab9c14d021a75ce41fff
P e0db7b38e1bc0edb1c3995cb23c46488aa6a0909
R 2a738c8214c86a0fa4841687a9a6b019
P 012d54d0d2b40888d08915082592ba75d70891c1
R 38c31151664dc230209e6e8e0d82d69e
U drh
Z 1d3a10d5db55bb3286dbd9e3921936ff
Z 767364e5a4324e897c21661eb6e99a80

2
manifest.uuid
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@ -1 +1 @@
012d54d0d2b40888d08915082592ba75d70891c1
8d399a03de63c15908d63ed69140ee15c6275b8d

38
tool/lemon.c
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@ -3391,7 +3391,7 @@ void print_stack_union(
int maxdtlength; /* Maximum length of any ".datatype" field. */
char *stddt; /* Standardized name for a datatype */
int i,j; /* Loop counters */
int hash; /* For hashing the name of a type */
unsigned hash; /* For hashing the name of a type */
const char *name; /* Name of the parser */
/* Allocate and initialize types[] and allocate stddt[] */
@ -4234,10 +4234,10 @@ int SetUnion(char *s1, char *s2)
** Code for processing tables in the LEMON parser generator.
*/
PRIVATE int strhash(const char *x)
PRIVATE unsigned strhash(const char *x)
{
int h = 0;
while( *x) h = h*13 + *(x++);
unsigned h = 0;
while( *x ) h = h*13 + *(x++);
return h;
}
@ -4309,8 +4309,8 @@ void Strsafe_init(){
int Strsafe_insert(const char *data)
{
x1node *np;
int h;
int ph;
unsigned h;
unsigned ph;
if( x1a==0 ) return 0;
ph = strhash(data);
@ -4364,7 +4364,7 @@ int Strsafe_insert(const char *data)
** if no such key. */
const char *Strsafe_find(const char *key)
{
int h;
unsigned h;
x1node *np;
if( x1a==0 ) return 0;
@ -4475,8 +4475,8 @@ void Symbol_init(){
int Symbol_insert(struct symbol *data, const char *key)
{
x2node *np;
int h;
int ph;
unsigned h;
unsigned ph;
if( x2a==0 ) return 0;
ph = strhash(key);
@ -4532,7 +4532,7 @@ int Symbol_insert(struct symbol *data, const char *key)
** if no such key. */
struct symbol *Symbol_find(const char *key)
{
int h;
unsigned h;
x2node *np;
if( x2a==0 ) return 0;
@ -4606,9 +4606,9 @@ PRIVATE int statecmp(struct config *a, struct config *b)
}
/* Hash a state */
PRIVATE int statehash(struct config *a)
PRIVATE unsigned statehash(struct config *a)
{
int h=0;
unsigned h=0;
while( a ){
h = h*571 + a->rp->index*37 + a->dot;
a = a->bp;
@ -4674,8 +4674,8 @@ void State_init(){
int State_insert(struct state *data, struct config *key)
{
x3node *np;
int h;
int ph;
unsigned h;
unsigned ph;
if( x3a==0 ) return 0;
ph = statehash(key);
@ -4731,7 +4731,7 @@ int State_insert(struct state *data, struct config *key)
** if no such key. */
struct state *State_find(struct config *key)
{
int h;
unsigned h;
x3node *np;
if( x3a==0 ) return 0;
@ -4761,9 +4761,9 @@ struct state **State_arrayof()
}
/* Hash a configuration */
PRIVATE int confighash(struct config *a)
PRIVATE unsigned confighash(struct config *a)
{
int h=0;
unsigned h=0;
h = h*571 + a->rp->index*37 + a->dot;
return h;
}
@ -4816,8 +4816,8 @@ void Configtable_init(){
int Configtable_insert(struct config *data)
{
x4node *np;
int h;
int ph;
unsigned h;
unsigned ph;
if( x4a==0 ) return 0;
ph = confighash(data);