diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/util.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/util.c b/src/util.c index 2d1c64ad1..44c0195ca 100644 --- a/src/util.c +++ b/src/util.c @@ -60,11 +60,21 @@ int sqlite3FaultSim(int iTest){ #ifndef SQLITE_OMIT_FLOATING_POINT /* ** Return true if the floating point value is Not a Number (NaN). +** +** Use the math library isnan() function if compiled with SQLITE_HAVE_ISNAN. +** Otherwise, we have our own implementation that works on most systems. */ int sqlite3IsNaN(double x){ + int rc; /* The value return */ +#if !SQLITE_HAVE_ISNAN && !HAVE_ISNAN u64 y; memcpy(&y,&x,sizeof(y)); - return IsNaN(y); + rc = IsNaN(y); +#else + rc = isnan(x); +#endif /* HAVE_ISNAN */ + testcase( rc ); + return rc; } #endif /* SQLITE_OMIT_FLOATING_POINT */ |