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Overview
| Comment: | Use a new algorithm for sqlite3Strlen that is slightly slower but is more like to work on a mixture of 32- and 64-bit systems. Ticket #3237, #3248. (CVS 5471) |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
cb1876d8dc102be74be98dd57ac14ee6 |
| User & Date: | drh 2008-07-24 17:06:48 |
Context
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2008-07-24
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| 23:34 | Reduce the size of the parser allocation. Add additional instrumentation to mem2. speed1*.test uses scratch malloc. (CVS 5472) check-in: 599a9dea user: drh tags: trunk | |
| 17:06 | Use a new algorithm for sqlite3Strlen that is slightly slower but is more like to work on a mixture of 32- and 64-bit systems. Ticket #3237, #3248. (CVS 5471) check-in: cb1876d8 user: drh tags: trunk | |
| 15:50 | Update the implementation of sqlite3ResultSetOfSelect() to (hopefully) make it clearer that malloc failures cannot possibly result in a crash. Ticket #3247. (CVS 5470) check-in: 74553109 user: drh tags: trunk | |
Changes
Changes to src/util.c.
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** ************************************************************************* ** Utility functions used throughout sqlite. ** ** This file contains functions for allocating memory, comparing ** strings, and stuff like that. ** ** $Id: util.c,v 1.239 2008/07/22 05:15:53 shane Exp $ */ #include "sqliteInt.h" #include <stdarg.h> #include <ctype.h> /* ................................................................................ /* ** Return the length of a string, except do not allow the string length ** to exceed the SQLITE_LIMIT_LENGTH setting. */ int sqlite3Strlen(sqlite3 *db, const char *z){ const char *z2 = z; while( *z2 ){ z2++; } if( z2 > &z[db->aLimit[SQLITE_LIMIT_LENGTH]] ){ return db->aLimit[SQLITE_LIMIT_LENGTH]; }else{ return (int)(z2 - z); } } /* ** Set the most recent error code and error string for the sqlite ** handle "db". The error code is set to "err_code". ** |
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** ************************************************************************* ** Utility functions used throughout sqlite. ** ** This file contains functions for allocating memory, comparing ** strings, and stuff like that. ** ** $Id: util.c,v 1.240 2008/07/24 17:06:48 drh Exp $ */ #include "sqliteInt.h" #include <stdarg.h> #include <ctype.h> /* ................................................................................ /* ** Return the length of a string, except do not allow the string length ** to exceed the SQLITE_LIMIT_LENGTH setting. */ int sqlite3Strlen(sqlite3 *db, const char *z){ const char *z2 = z; int len; size_t x; while( *z2 ){ z2++; } x = z2 - z; len = 0x7fffffff & x; if( len!=x || len > db->aLimit[SQLITE_LIMIT_LENGTH] ){ return db->aLimit[SQLITE_LIMIT_LENGTH]; }else{ return len; } } /* ** Set the most recent error code and error string for the sqlite ** handle "db". The error code is set to "err_code". ** |