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add parameter_indexes api

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vladimir%pobox.com 2005-04-13 23:25:41 +00:00
parent a2bada0039
commit 6003884975
1 changed files with 32 additions and 0 deletions
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32
db/sqlite3/src/vdbeapi.c
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@ -623,14 +623,46 @@ int sqlite3_bind_parameter_index(sqlite3_stmt *pStmt, const char *zName){
return 0;
}
/*
** Given a wildcard parameter name, return the set of indexes of the
** variables with that name. If there are no variables with the given
** name, return 0. Otherwise, return the number of indexes returned
** in *pIndexes. The array should be freed with
** sqlite3_free_parameter_indexes.
*/
int sqlite3_bind_parameter_indexes(
sqlite3_stmt *pStmt,
const char *zName,
int **pIndexes
){
Vdbe *p = (Vdbe*)pStmt;
int i, j, nVars, *indexes;
if( p==0 ){
return 0;
}
createVarMap(p);
if( !zName )
return 0;
/* first count */
nVars = 0;
for(i=0; i<p->nVar; i++){
const char *z = p->azVar[i];
if( z && strcmp(z,zName)==0 ){
nVars++;
}
}
indexes = sqliteMalloc( sizeof(int) * nVars );
j = 0;
for(i=0; i<p->nVar; i++){
const char *z = p->azVar[i];
if( z && strcmp(z,zName)==0 )
indexes[j++] = i+1;
}
*pIndexes = indexes;
return nVars;
}
void sqlite3_free_parameter_indexes(int *pIndexes)
{
sqliteFree( pIndexes );
}