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Updated SQLite to 3.3.13 - why? I have no idea

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This commit is contained in:
Scott Ehlert
2007-03-21 20:19:37 +00:00
parent eaa4122c5a
commit a004e906dd
55 changed files with 9336 additions and 3963 deletions
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114
dlls/sqlite/sqlite-source/func.c
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@@ -204,7 +204,8 @@ static void roundFunc(sqlite3_context *context, int argc, sqlite3_value **argv){
if( sqlite3_value_type(argv[0])==SQLITE_NULL ) return;
r = sqlite3_value_double(argv[0]);
sqlite3_snprintf(sizeof(zBuf),zBuf,"%.*f",n,r);
sqlite3_result_double(context, atof(zBuf));
sqlite3AtoF(zBuf, &r);
sqlite3_result_double(context, r);
}
/*
@@ -271,6 +272,25 @@ static void randomFunc(
sqlite3_result_int64(context, r);
}
/*
** Implementation of randomblob(N). Return a random blob
** that is N bytes long.
*/
static void randomBlob(
sqlite3_context *context,
int argc,
sqlite3_value **argv
){
int n;
unsigned char *p;
assert( argc==1 );
n = sqlite3_value_int(argv[0]);
if( n<1 ) n = 1;
p = sqlite3_malloc(n);
sqlite3Randomness(n, p);
sqlite3_result_blob(context, (char*)p, n, sqlite3_free);
}
/*
** Implementation of the last_insert_rowid() SQL function. The return
** value is the same as the sqlite3_last_insert_rowid() API function.
@@ -547,6 +567,12 @@ static void versionFunc(
sqlite3_result_text(context, sqlite3_version, -1, SQLITE_STATIC);
}
/* Array for converting from half-bytes (nybbles) into ASCII hex
** digits. */
static const char hexdigits[] = {
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
};
/*
** EXPERIMENTAL - This is not an official function. The interface may
@@ -572,10 +598,6 @@ static void quoteFunc(sqlite3_context *context, int argc, sqlite3_value **argv){
break;
}
case SQLITE_BLOB: {
static const char hexdigits[] = {
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
};
char *zText = 0;
int nBlob = sqlite3_value_bytes(argv[0]);
char const *zBlob = sqlite3_value_blob(argv[0]);
@@ -621,11 +643,41 @@ static void quoteFunc(sqlite3_context *context, int argc, sqlite3_value **argv){
}
}
/*
** The hex() function. Interpret the argument as a blob. Return
** a hexadecimal rendering as text.
*/
static void hexFunc(
sqlite3_context *context,
int argc,
sqlite3_value **argv
){
int i, n;
const unsigned char *pBlob;
char *zHex, *z;
assert( argc==1 );
pBlob = sqlite3_value_blob(argv[0]);
n = sqlite3_value_bytes(argv[0]);
z = zHex = sqlite3_malloc(n*2 + 1);
if( zHex==0 ) return;
for(i=0; i<n; i++, pBlob++){
unsigned char c = *pBlob;
*(z++) = hexdigits[(c>>4)&0xf];
*(z++) = hexdigits[c&0xf];
}
*z = 0;
sqlite3_result_text(context, zHex, n*2, sqlite3_free);
}
#ifdef SQLITE_SOUNDEX
/*
** Compute the soundex encoding of a word.
*/
static void soundexFunc(sqlite3_context *context, int argc, sqlite3_value **argv){
static void soundexFunc(
sqlite3_context *context,
int argc,
sqlite3_value **argv
){
char zResult[8];
const u8 *zIn;
int i, j;
@@ -641,13 +693,20 @@ static void soundexFunc(sqlite3_context *context, int argc, sqlite3_value **argv
};
assert( argc==1 );
zIn = (u8*)sqlite3_value_text(argv[0]);
if( zIn==0 ) zIn = (u8*)"";
for(i=0; zIn[i] && !isalpha(zIn[i]); i++){}
if( zIn[i] ){
u8 prevcode = iCode[zIn[i]&0x7f];
zResult[0] = toupper(zIn[i]);
for(j=1; j<4 && zIn[i]; i++){
int code = iCode[zIn[i]&0x7f];
if( code>0 ){
zResult[j++] = code + '0';
if( code!=prevcode ){
prevcode = code;
zResult[j++] = code + '0';
}
}else{
prevcode = 0;
}
}
while( j<4 ){
@@ -661,6 +720,26 @@ static void soundexFunc(sqlite3_context *context, int argc, sqlite3_value **argv
}
#endif
#ifndef SQLITE_OMIT_LOAD_EXTENSION
/*
** A function that loads a shared-library extension then returns NULL.
*/
static void loadExt(sqlite3_context *context, int argc, sqlite3_value **argv){
const char *zFile = (const char *)sqlite3_value_text(argv[0]);
const char *zProc = 0;
sqlite3 *db = sqlite3_user_data(context);
char *zErrMsg = 0;
if( argc==2 ){
zProc = (const char *)sqlite3_value_text(argv[1]);
}
if( sqlite3_load_extension(db, zFile, zProc, &zErrMsg) ){
sqlite3_result_error(context, zErrMsg, -1);
sqlite3_free(zErrMsg);
}
}
#endif
#ifdef SQLITE_TEST
/*
** This function generates a string of random characters. Used for
@@ -839,16 +918,8 @@ struct SumCtx {
** that it returns NULL if it sums over no inputs. TOTAL returns
** 0.0 in that case. In addition, TOTAL always returns a float where
** SUM might return an integer if it never encounters a floating point
** value.
**
** I am told that SUM() should raise an exception if it encounters
** a integer overflow. But after pondering this, I decided that
** behavior leads to brittle programs. So instead, I have coded
** SUM() to revert to using floating point if it encounters an
** integer overflow. The answer may not be exact, but it will be
** close. If the SUM() function returns an integer, the value is
** exact. If SUM() returns a floating point value, it means the
** value might be approximated.
** value. TOTAL never fails, but SUM might through an exception if
** it overflows an integer.
*/
static void sumStep(sqlite3_context *context, int argc, sqlite3_value **argv){
SumCtx *p;
@@ -864,7 +935,7 @@ static void sumStep(sqlite3_context *context, int argc, sqlite3_value **argv){
if( (p->approx|p->overflow)==0 ){
i64 iNewSum = p->iSum + v;
int s1 = (int)(p->iSum >> (sizeof(i64)*8-1));
int s2 = (int)(v >> (sizeof(i64)*8-1));
int s2 = (int)(v >> (sizeof(i64)*8-1));
int s3 = (int)(iNewSum >> (sizeof(i64)*8-1));
p->overflow = (s1&s2&~s3) | (~s1&~s2&s3);
p->iSum = iNewSum;
@@ -1002,8 +1073,10 @@ void sqlite3RegisterBuiltinFunctions(sqlite3 *db){
{ "coalesce", -1, 0, SQLITE_UTF8, 0, ifnullFunc },
{ "coalesce", 0, 0, SQLITE_UTF8, 0, 0 },
{ "coalesce", 1, 0, SQLITE_UTF8, 0, 0 },
{ "hex", 1, 0, SQLITE_UTF8, 0, hexFunc },
{ "ifnull", 2, 0, SQLITE_UTF8, 1, ifnullFunc },
{ "random", -1, 0, SQLITE_UTF8, 0, randomFunc },
{ "randomblob", 1, 0, SQLITE_UTF8, 0, randomBlob },
{ "nullif", 2, 0, SQLITE_UTF8, 1, nullifFunc },
{ "sqlite_version", 0, 0, SQLITE_UTF8, 0, versionFunc},
{ "quote", 1, 0, SQLITE_UTF8, 0, quoteFunc },
@@ -1013,6 +1086,10 @@ void sqlite3RegisterBuiltinFunctions(sqlite3 *db){
#ifdef SQLITE_SOUNDEX
{ "soundex", 1, 0, SQLITE_UTF8, 0, soundexFunc},
#endif
#ifndef SQLITE_OMIT_LOAD_EXTENSION
{ "load_extension", 1, 1, SQLITE_UTF8, 0, loadExt },
{ "load_extension", 2, 1, SQLITE_UTF8, 0, loadExt },
#endif
#ifdef SQLITE_TEST
{ "randstr", 2, 0, SQLITE_UTF8, 0, randStr },
{ "test_destructor", 1, 1, SQLITE_UTF8, 0, test_destructor},
@@ -1078,6 +1155,7 @@ void sqlite3RegisterBuiltinFunctions(sqlite3 *db){
}
}
sqlite3RegisterDateTimeFunctions(db);
sqlite3_overload_function(db, "MATCH", 2);
#ifdef SQLITE_SSE
(void)sqlite3SseFunctions(db);
#endif