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Overview
Comment: | Make it safe to call sqliteMalloc() with a request for 0 bytes. Ticket #534. (CVS 1164) |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
6c858db2c099c7ba73d72e02b19bf617 |
User & Date: | drh 2004-01-07 03:41:04.000 |
Context
2004-01-07
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18:52 | Defer the {quote: MoveTo} opcode in VDBE until the data is actually needed. Sometimes the data is never needed, resulting in a performance increase. On an indexed order search with a large OFFSET, queries times can be an order of magnitude faster. (CVS 1165) (check-in: d3e96da20d user: drh tags: trunk) | |
03:41 | Make it safe to call sqliteMalloc() with a request for 0 bytes. Ticket #534. (CVS 1164) (check-in: 6c858db2c0 user: drh tags: trunk) | |
03:29 | Preserve the HH:MM:SS for most date/time modifiers. Ticket #551. (CVS 1163) (check-in: 70df32b716 user: drh tags: trunk) | |
Changes
Changes to src/util.c.
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10 11 12 13 14 15 16 | ** ************************************************************************* ** Utility functions used throughout sqlite. ** ** This file contains functions for allocating memory, comparing ** strings, and stuff like that. ** | | | 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | ** ************************************************************************* ** Utility functions used throughout sqlite. ** ** This file contains functions for allocating memory, comparing ** strings, and stuff like that. ** ** $Id: util.c,v 1.72 2004/01/07 03:41:04 drh Exp $ */ #include "sqliteInt.h" #include <stdarg.h> #include <ctype.h> /* ** If malloc() ever fails, this global variable gets set to 1. |
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248 249 250 251 252 253 254 | /* ** Allocate new memory and set it to zero. Return NULL if ** no memory is available. See also sqliteMallocRaw(). */ void *sqliteMalloc(int n){ void *p; if( (p = malloc(n))==0 ){ | | | | 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 | /* ** Allocate new memory and set it to zero. Return NULL if ** no memory is available. See also sqliteMallocRaw(). */ void *sqliteMalloc(int n){ void *p; if( (p = malloc(n))==0 ){ if( n>0 ) sqlite_malloc_failed++; }else{ memset(p, 0, n); } return p; } /* ** Allocate new memory but do not set it to zero. Return NULL if ** no memory is available. See also sqliteMalloc(). */ void *sqliteMallocRaw(int n){ void *p; if( (p = malloc(n))==0 ){ if( n>0 ) sqlite_malloc_failed++; } return p; } /* ** Free memory previously obtained from sqliteMalloc() */ |
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