On 8/25/15, Dan Kennedy <danielk1977 at gmail.com> wrote: > On 08/25/2015 11:36 PM, Bill Parker wrote: >> >> The patch file below should catch and handle all conditions where >> Tcl_Alloc() is called, but are NOT checked for a return value of NULL: > > Does Tcl_Alloc() actually return NULL if a malloc fails? I thought if > memory can not be allocated it calls Tcl_Panic() to report an error > message and then aborts the process. >
Sure enough. http://tmml.sourceforge.net/doc/tcl/Alloc.html says that you have to use Tcl_AttemptAlloc() if you want a NULL pointer returned on OOM. Tcl_Alloc() always panics. See http://core.tcl.tk/tcl/artifact/d25497d9849b8704?ln=1089 for the implementation. -- D. Richard Hipp drh at sqlite.org
