diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/func.c | 6 | ||||
| -rw-r--r-- | src/sqliteInt.h | 7 | ||||
| -rw-r--r-- | src/util.c | 13 |
3 files changed, 21 insertions, 5 deletions
diff --git a/src/func.c b/src/func.c index 9fbd1e9e1..18004984d 100644 --- a/src/func.c +++ b/src/func.c @@ -1892,7 +1892,7 @@ static void sumFinalize(sqlite3_context *context){ if( p->approx ){ if( p->ovrfl ){ sqlite3_result_error(context,"integer overflow",-1); - }else if( !sqlite3IsNaN(p->rErr) ){ + }else if( !sqlite3IsOverflow(p->rErr) ){ sqlite3_result_double(context, p->rSum+p->rErr); }else{ sqlite3_result_double(context, p->rSum); @@ -1909,7 +1909,7 @@ static void avgFinalize(sqlite3_context *context){ double r; if( p->approx ){ r = p->rSum; - if( !sqlite3IsNaN(p->rErr) ) r += p->rErr; + if( !sqlite3IsOverflow(p->rErr) ) r += p->rErr; }else{ r = (double)(p->iSum); } @@ -1923,7 +1923,7 @@ static void totalFinalize(sqlite3_context *context){ if( p ){ if( p->approx ){ r = p->rSum; - if( !sqlite3IsNaN(p->rErr) ) r += p->rErr; + if( !sqlite3IsOverflow(p->rErr) ) r += p->rErr; }else{ r = (double)(p->iSum); } diff --git a/src/sqliteInt.h b/src/sqliteInt.h index 8d18bfdfb..db1ede8e6 100644 --- a/src/sqliteInt.h +++ b/src/sqliteInt.h @@ -4712,10 +4712,13 @@ void sqlite3MutexWarnOnContention(sqlite3_mutex*); # define EXP754 (((u64)0x7ff)<<52) # define MAN754 ((((u64)1)<<52)-1) # define IsNaN(X) (((X)&EXP754)==EXP754 && ((X)&MAN754)!=0) +# define IsOvfl(X) (((X)&EXP754)==EXP754) int sqlite3IsNaN(double); + int sqlite3IsOverflow(double); #else -# define IsNaN(X) 0 -# define sqlite3IsNaN(X) 0 +# define IsNaN(X) 0 +# define sqlite3IsNaN(X) 0 +# define sqlite3IsOVerflow(X) 0 #endif /* diff --git a/src/util.c b/src/util.c index 8c9e980cd..3b10ba60a 100644 --- a/src/util.c +++ b/src/util.c @@ -68,6 +68,19 @@ int sqlite3IsNaN(double x){ } #endif /* SQLITE_OMIT_FLOATING_POINT */ +#ifndef SQLITE_OMIT_FLOATING_POINT +/* +** Return true if the floating point value is NaN or +Inf or -Inf. +*/ +int sqlite3IsOverflow(double x){ + int rc; /* The value return */ + u64 y; + memcpy(&y,&x,sizeof(y)); + rc = IsOvfl(y); + return rc; +} +#endif /* SQLITE_OMIT_FLOATING_POINT */ + /* ** Compute a string length that is limited to what can be stored in ** lower 30 bits of a 32-bit signed integer. |