diff options
Diffstat (limited to 'src/callback.c')
| -rw-r--r-- | src/callback.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/callback.c b/src/callback.c index c36d51a4e..6fe21a295 100644 --- a/src/callback.c +++ b/src/callback.c @@ -302,12 +302,18 @@ static int matchQuality( u8 enc /* Desired text encoding */ ){ int match; - assert( p->nArg>=-1 ); + assert( p->nArg>=(-4) && p->nArg!=(-2) ); + assert( nArg>=(-2) ); /* Wrong number of arguments means "no match" */ if( p->nArg!=nArg ){ - if( nArg==(-2) ) return (p->xSFunc==0) ? 0 : FUNC_PERFECT_MATCH; + if( nArg==(-2) ) return p->xSFunc==0 ? 0 : FUNC_PERFECT_MATCH; if( p->nArg>=0 ) return 0; + /* Special p->nArg values available to built-in functions only: + ** -3 1 or more arguments required + ** -4 2 or more arguments required + */ + if( p->nArg<(-2) && nArg<(-2-p->nArg) ) return 0; } /* Give a better score to a function with a specific number of arguments |