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Overview
| Comment: | Remove the dependency on libm for isnan(). Ticket #2436. (CVS 4103) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
406675bb1c954dae95b9059f7f533ed5 |
| User & Date: | drh 2007-06-20 15:29:25 |
Context
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2007-06-20
| ||
| 16:13 | A column name preceded by a unary "+" operator is considered to be a column name when computing the collating sequence to be used by a comparison operator or ORDER BY clause. (CVS 4104) check-in: 99a20f6a user: drh tags: trunk | |
| 15:29 | Remove the dependency on libm for isnan(). Ticket #2436. (CVS 4103) check-in: 406675bb user: drh tags: trunk | |
| 15:14 | Remove an unused variable from btree.c. (CVS 4102) check-in: cb47a829 user: drh tags: trunk | |
Changes
Changes to src/printf.c.
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#else
/* It makes more sense to use 0.5 */
for(idx=precision, rounder=0.5; idx>0; idx--, rounder*=0.1){}
#endif
if( xtype==etFLOAT ) realvalue += rounder;
/* Normalize realvalue to within 10.0 > realvalue >= 1.0 */
exp = 0;
if( isnan(realvalue) ){
bufpt = "NaN";
length = 3;
break;
}
if( realvalue>0.0 ){
while( realvalue>=1e32 && exp<=350 ){ realvalue *= 1e-32; exp+=32; }
while( realvalue>=1e8 && exp<=350 ){ realvalue *= 1e-8; exp+=8; }
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#else
/* It makes more sense to use 0.5 */
for(idx=precision, rounder=0.5; idx>0; idx--, rounder*=0.1){}
#endif
if( xtype==etFLOAT ) realvalue += rounder;
/* Normalize realvalue to within 10.0 > realvalue >= 1.0 */
exp = 0;
if( sqlite3_isnan(realvalue) ){
bufpt = "NaN";
length = 3;
break;
}
if( realvalue>0.0 ){
while( realvalue>=1e32 && exp<=350 ){ realvalue *= 1e-32; exp+=32; }
while( realvalue>=1e8 && exp<=350 ){ realvalue *= 1e-8; exp+=8; }
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Changes to src/sqliteInt.h.
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** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** Internal interface definitions for SQLite. ** ** @(#) $Id: sqliteInt.h,v 1.573 2007/06/19 15:23:48 drh Exp $ */ #ifndef _SQLITEINT_H_ #define _SQLITEINT_H_ #include "sqliteLimit.h" #if defined(SQLITE_TCL) || defined(TCLSH) ................................................................................ #include "parse.h" #include <stdio.h> #include <stdlib.h> #include <string.h> #include <assert.h> #include <stddef.h> #if defined(_WIN32) || defined(WIN32) || defined(__CYGWIN__) || defined(__MINGW32__) || defined(__BORLANDC__) # define isnan(X) ((X)!=(X)) #endif /* ** If compiling for a processor that lacks floating point support, ** substitute integer for floating-point */ #ifdef SQLITE_OMIT_FLOATING_POINT # define double sqlite_int64 |
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** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** Internal interface definitions for SQLite. ** ** @(#) $Id: sqliteInt.h,v 1.574 2007/06/20 15:29:25 drh Exp $ */ #ifndef _SQLITEINT_H_ #define _SQLITEINT_H_ #include "sqliteLimit.h" #if defined(SQLITE_TCL) || defined(TCLSH) ................................................................................ #include "parse.h" #include <stdio.h> #include <stdlib.h> #include <string.h> #include <assert.h> #include <stddef.h> #define sqlite3_isnan(X) ((X)!=(X)) /* ** If compiling for a processor that lacks floating point support, ** substitute integer for floating-point */ #ifdef SQLITE_OMIT_FLOATING_POINT # define double sqlite_int64 |
Changes to src/vdbe.c.
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** ** Various scripts scan this source file in order to generate HTML ** documentation, headers files, or other derived files. The formatting ** of the code in this file is, therefore, important. See other comments ** in this file for details. If in doubt, do not deviate from existing ** commenting and indentation practices when changing or adding code. ** ** $Id: vdbe.c,v 1.626 2007/06/15 14:53:53 danielk1977 Exp $ */ #include "sqliteInt.h" #include "os.h" #include <ctype.h> #include <math.h> #include "vdbeInt.h" ................................................................................ i64 ia = (i64)a; i64 ib = (i64)b; if( ia==0 ) goto divide_by_zero; b = ib % ia; break; } } if( isnan(b) ){ goto divide_by_zero; } Release(pTos); pTos--; Release(pTos); pTos->r = b; pTos->flags = MEM_Real; |
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** ** Various scripts scan this source file in order to generate HTML ** documentation, headers files, or other derived files. The formatting ** of the code in this file is, therefore, important. See other comments ** in this file for details. If in doubt, do not deviate from existing ** commenting and indentation practices when changing or adding code. ** ** $Id: vdbe.c,v 1.627 2007/06/20 15:29:25 drh Exp $ */ #include "sqliteInt.h" #include "os.h" #include <ctype.h> #include <math.h> #include "vdbeInt.h" ................................................................................ i64 ia = (i64)a; i64 ib = (i64)b; if( ia==0 ) goto divide_by_zero; b = ib % ia; break; } } if( sqlite3_isnan(b) ){ goto divide_by_zero; } Release(pTos); pTos--; Release(pTos); pTos->r = b; pTos->flags = MEM_Real; |
Changes to src/vdbemem.c.
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}
/*
** Delete any previous value and set the value stored in *pMem to val,
** manifest type REAL.
*/
void sqlite3VdbeMemSetDouble(Mem *pMem, double val){
if( isnan(val) ){
sqlite3VdbeMemSetNull(pMem);
}else{
sqlite3VdbeMemRelease(pMem);
pMem->r = val;
pMem->flags = MEM_Real;
pMem->type = SQLITE_FLOAT;
}
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}
/*
** Delete any previous value and set the value stored in *pMem to val,
** manifest type REAL.
*/
void sqlite3VdbeMemSetDouble(Mem *pMem, double val){
if( sqlite3_isnan(val) ){
sqlite3VdbeMemSetNull(pMem);
}else{
sqlite3VdbeMemRelease(pMem);
pMem->r = val;
pMem->flags = MEM_Real;
pMem->type = SQLITE_FLOAT;
}
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