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Overview
| Comment: | Avoid using the internal printf routine for round(x,y) in the common case where y==0. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
d76ad8b3c494ffb4e670da0e92a1f8db |
| User & Date: | shaneh 2010-02-17 04:19:27 |
Context
|
2010-02-17
| ||
| 17:48 | Consistent use of #ifdef for SQLITE_HAS_CODEC to avoid confusion. (check-in: 34a3413a user: shaneh tags: trunk) | |
| 04:19 | Avoid using the internal printf routine for round(x,y) in the common case where y==0. (check-in: d76ad8b3 user: shaneh tags: trunk) | |
| 03:57 | More rounding tests. (check-in: 3863638b user: shaneh tags: trunk) | |
Changes
Changes to src/func.c.
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if( SQLITE_NULL==sqlite3_value_type(argv[1]) ) return;
n = sqlite3_value_int(argv[1]);
if( n>30 ) n = 30;
if( n<0 ) n = 0;
}
if( sqlite3_value_type(argv[0])==SQLITE_NULL ) return;
r = sqlite3_value_double(argv[0]);
zBuf = sqlite3_mprintf("%.*f",n,r);
if( zBuf==0 ){
sqlite3_result_error_nomem(context);
}else{
sqlite3AtoF(zBuf, &r);
sqlite3_free(zBuf);
sqlite3_result_double(context, r);
}
}
#endif
/*
** Allocate nByte bytes of space using sqlite3_malloc(). If the
** allocation fails, call sqlite3_result_error_nomem() to notify
** the database handle that malloc() has failed and return NULL.
** If nByte is larger than the maximum string or blob length, then
|
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267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 |
if( SQLITE_NULL==sqlite3_value_type(argv[1]) ) return;
n = sqlite3_value_int(argv[1]);
if( n>30 ) n = 30;
if( n<0 ) n = 0;
}
if( sqlite3_value_type(argv[0])==SQLITE_NULL ) return;
r = sqlite3_value_double(argv[0]);
/* If Y==0 and X will fit in a 64-bit int,
** handle the rounding directly,
** otherwise use printf.
*/
if( n==0 && r>=0 && r<LARGEST_INT64-1 ){
r = (double)((sqlite_int64)(r+0.5));
}else if( n==0 && r<0 && (-r)<LARGEST_INT64-1 ){
r = -(double)((sqlite_int64)((-r)+0.5));
}else{
zBuf = sqlite3_mprintf("%.*f",n,r);
if( zBuf==0 ){
sqlite3_result_error_nomem(context);
return;
}
sqlite3AtoF(zBuf, &r);
sqlite3_free(zBuf);
}
sqlite3_result_double(context, r);
}
#endif
/*
** Allocate nByte bytes of space using sqlite3_malloc(). If the
** allocation fails, call sqlite3_result_error_nomem() to notify
** the database handle that malloc() has failed and return NULL.
** If nByte is larger than the maximum string or blob length, then
|