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Overview
| Comment: | More compact implementation of the typeof() SQL function. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
efb4aab0caa4145732a5438cc2a193bc |
| User & Date: | drh 2017-07-06 13:51:50 |
Context
|
2017-07-06
| ||
| 16:33 | Change the (machine-generated) keywordhash.h file to increase the scope of the tables used for keyword matching, so that the tables are accessible to functions other then keywordCode(). check-in: c5ed5ebd user: drh tags: trunk | |
| 13:51 | More compact implementation of the typeof() SQL function. check-in: efb4aab0 user: drh tags: trunk | |
| 13:23 | Avoid unnecessary upper-to-lower case conversion for function names when registering the built-in functions. check-in: 06269257 user: drh tags: trunk | |
Changes
Changes to src/func.c.
72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 |
** Return the type of the argument.
*/
static void typeofFunc(
sqlite3_context *context,
int NotUsed,
sqlite3_value **argv
){
const char *z = 0;
UNUSED_PARAMETER(NotUsed);
switch( sqlite3_value_type(argv[0]) ){
case SQLITE_INTEGER: z = "integer"; break;
case SQLITE_TEXT: z = "text"; break;
case SQLITE_FLOAT: z = "real"; break;
case SQLITE_BLOB: z = "blob"; break;
default: z = "null"; break;
}
sqlite3_result_text(context, z, -1, SQLITE_STATIC);
}
/*
** Implementation of the length() function
*/
static void lengthFunc(
|
| | | | | | | | | | |
72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 |
** Return the type of the argument.
*/
static void typeofFunc(
sqlite3_context *context,
int NotUsed,
sqlite3_value **argv
){
static const char *azType[] = { "integer", "real", "text", "blob", "null" };
int i = sqlite3_value_type(argv[0]) - 1;
UNUSED_PARAMETER(NotUsed);
assert( i>=0 && i<ArraySize(azType) );
assert( SQLITE_INTEGER==1 );
assert( SQLITE_FLOAT==2 );
assert( SQLITE_TEXT==3 );
assert( SQLITE_BLOB==4 );
assert( SQLITE_NULL==5 );
sqlite3_result_text(context, azType[i], -1, SQLITE_STATIC);
}
/*
** Implementation of the length() function
*/
static void lengthFunc(
|