database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-10-24 09:53:10 +03:00
Code Activity

Refactoring of the vdbe Mem functions and the APIs that deal with them.

Browse Source 
The code will not compile in its current state. (CVS 1465)

FossilOrigin-Name: bba6684d502ba1ecd9614d2470ec94296e3c07c2
This commit is contained in:
drh
2004-05-26 23:25:30 +00:00
parent f9b596ebc0
commit 4f26d6c429
15 changed files with 1157 additions and 1552 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
src/func.c
View File

@@ -16,7 +16,7 @@
** sqliteRegisterBuildinFunctions() found at the bottom of the file.
** All other code has file scope.
**
** $Id: func.c,v 1.57 2004/05/26 16:54:43 drh Exp $
** $Id: func.c,v 1.58 2004/05/26 23:25:31 drh Exp $
*/
#include <ctype.h>
#include <math.h>
@@ -88,7 +88,7 @@ static void lengthFunc(
break;
}
case SQLITE3_TEXT: {
const char *z = sqlite3_value_data(argv[0]);
const char *z = sqlite3_value_text(argv[0]);
for(len=0; *z; z++){ if( (0xc0&*z)!=0x80 ) len++; }
sqlite3_result_int32(context, len);
break;
@@ -108,7 +108,7 @@ static void absFunc(sqlite3_context *context, int argc, sqlite3_value **argv){
assert( argc==1 );
switch( sqlite3_value_type(argv[0]) ){
case SQLITE3_INTEGER: {
sqlite3_result_int64(context, -sqlite3_value_int(argv[0]));
sqlite3_result_int64(context, -sqlite3_value_int64(argv[0]));
break;
}
case SQLITE3_NULL: {
@@ -116,7 +116,7 @@ static void absFunc(sqlite3_context *context, int argc, sqlite3_value **argv){
break;
}
default: {
sqlite3_result_double(context, -sqlite3_value_float(argv[0]));
sqlite3_result_double(context, -sqlite3_value_double(argv[0]));
break;
}
}
@@ -136,7 +136,7 @@ static void substrFunc(
int p1, p2, len;
assert( argc==3 );
z = sqlite3_value_data(argv[0]);
z = sqlite3_value_text(argv[0]);
if( z==0 ) return;
p1 = sqlite3_value_int(argv[1]);
p2 = sqlite3_value_int(argv[2]);
@@ -180,7 +180,7 @@ static void roundFunc(sqlite3_context *context, int argc, sqlite3_value **argv){
if( n<0 ) n = 0;
}
if( SQLITE3_NULL==sqlite3_value_type(argv[0]) ) return;
r = sqlite3_value_float(argv[0]);
r = sqlite3_value_double(argv[0]);
sprintf(zBuf,"%.*f",n,r);
sqlite3_result_text(context, zBuf, -1, 1);
}
@@ -194,7 +194,7 @@ static void upperFunc(sqlite3_context *context, int argc, sqlite3_value **argv){
if( argc<1 || SQLITE3_NULL==sqlite3_value_type(argv[0]) ) return;
z = sqliteMalloc(sqlite3_value_bytes(argv[0]));
if( z==0 ) return;
strcpy(z, sqlite3_value_data(argv[0]));
strcpy(z, sqlite3_value_text(argv[0]));
for(i=0; z[i]; i++){
if( islower(z[i]) ) z[i] = toupper(z[i]);
}
@@ -207,7 +207,7 @@ static void lowerFunc(sqlite3_context *context, int argc, sqlite3_value **argv){
if( argc<1 || SQLITE3_NULL==sqlite3_value_type(argv[0]) ) return;
z = sqliteMalloc(sqlite3_value_bytes(argv[0]));
if( z==0 ) return;
strcpy(z, sqlite3_value_data(argv[0]));
strcpy(z, sqlite3_value_text(argv[0]));
for(i=0; z[i]; i++){
if( isupper(z[i]) ) z[i] = tolower(z[i]);
}
@@ -301,8 +301,8 @@ static void likeFunc(
int argc,
sqlite3_value **argv
){
const unsigned char *zA = sqlite3_value_data(argv[0]);
const unsigned char *zB = sqlite3_value_data(argv[1]);
const unsigned char *zA = sqlite3_value_text(argv[0]);
const unsigned char *zB = sqlite3_value_text(argv[1]);
if( zA && zB ){
sqlite3_result_int32(context, sqlite3LikeCompare(zA, zB));
}
@@ -318,8 +318,8 @@ static void likeFunc(
** is implemented as glob(A,B).
*/
static void globFunc(sqlite3_context *context, int arg, sqlite3_value **argv){
const unsigned char *zA = sqlite3_value_data(argv[0]);
const unsigned char *zB = sqlite3_value_data(argv[1]);
const unsigned char *zA = sqlite3_value_text(argv[0]);
const unsigned char *zB = sqlite3_value_text(argv[1]);
if( zA && zB ){
sqlite3_result_int32(context, sqlite3GlobCompare(zA, zB));
}
@@ -364,7 +364,6 @@ static void versionFunc(
** single-quote escapes.
*/
static void quoteFunc(sqlite3_context *context, int argc, sqlite3_value **argv){
const char *zArg = sqlite3_value_data(argv[0]);
if( argc<1 ) return;
switch( sqlite3_value_type(argv[0]) ){
case SQLITE3_NULL: {
@@ -379,7 +378,7 @@ static void quoteFunc(sqlite3_context *context, int argc, sqlite3_value **argv){
case SQLITE3_BLOB: /*** FIX ME. Use a BLOB encoding ***/
case SQLITE3_TEXT: {
int i,j,n;
const char *zArg = sqlite3_value_data(argv[0]);
const char *zArg = sqlite3_value_text(argv[0]);
char *z;
for(i=n=0; zArg[i]; i++){ if( zArg[i]=='\'' ) n++; }
@@ -419,7 +418,7 @@ static void soundexFunc(sqlite3_context *context, int argc, sqlite3_value **argv
1, 2, 6, 2, 3, 0, 1, 0, 2, 0, 2, 0, 0, 0, 0, 0,
};
assert( argc==1 );
zIn = sqlite3_value_data(argv[0]);
zIn = sqlite3_value_text(argv[0]);
for(i=0; zIn[i] && !isalpha(zIn[i]); i++){}
if( zIn[i] ){
zResult[0] = toupper(zIn[i]);
@@ -499,20 +498,20 @@ struct SumCtx {
static void sumStep(sqlite3_context *context, int argc, sqlite3_value **argv){
SumCtx *p;
if( argc<1 ) return;
p = sqlite3_get_context(context, sizeof(*p));
p = sqlite3_aggregate_context(context, sizeof(*p));
if( p && SQLITE3_NULL!=sqlite3_value_type(argv[0]) ){
p->sum += sqlite3_value_float(argv[0]);
p->sum += sqlite3_value_double(argv[0]);
p->cnt++;
}
}
static void sumFinalize(sqlite3_context *context){
SumCtx *p;
p = sqlite3_get_context(context, sizeof(*p));
p = sqlite3_aggregate_context(context, sizeof(*p));
sqlite3_result_double(context, p ? p->sum : 0.0);
}
static void avgFinalize(sqlite3_context *context){
SumCtx *p;
p = sqlite3_get_context(context, sizeof(*p));
p = sqlite3_aggregate_context(context, sizeof(*p));
if( p && p->cnt>0 ){
sqlite3_result_double(context, p->sum/(double)p->cnt);
}
@@ -570,14 +569,14 @@ struct CountCtx {
*/
static void countStep(sqlite3_context *context, int argc, sqlite3_value **argv){
CountCtx *p;
p = sqlite3_get_context(context, sizeof(*p));
p = sqlite3_aggregate_context(context, sizeof(*p));
if( (argc==0 || SQLITE3_NULL!=sqlite3_value_type(argv[0])) && p ){
p->n++;
}
}
static void countFinalize(sqlite3_context *context){
CountCtx *p;
p = sqlite3_get_context(context, sizeof(*p));
p = sqlite3_aggregate_context(context, sizeof(*p));
sqlite3_result_int32(context, p ? p->n : 0);
}
@@ -598,7 +597,7 @@ static void minmaxStep(sqlite3_context *context, int argc, sqlite3_value **argv)
int max = 0;
int cmp = 0;
Mem *pArg = (Mem *)argv[0];
Mem *pBest = (Mem *)sqlite3_get_context(context, sizeof(*pBest));
Mem *pBest = (Mem *)sqlite3_aggregate_context(context, sizeof(*pBest));
if( SQLITE3_NULL==sqlite3_value_type(argv[0]) ) return;
@@ -622,7 +621,7 @@ static void minmaxStep(sqlite3_context *context, int argc, sqlite3_value **argv)
}
static void minMaxFinalize(sqlite3_context *context){
sqlite3_value *pRes;
pRes = (sqlite3_value *)sqlite3_get_context(context, sizeof(Mem));
pRes = (sqlite3_value *)sqlite3_aggregate_context(context, sizeof(Mem));
if( pRes->flags ){
sqlite3_result(context, pRes);
}