Clinton A. Pierce wrote: > * sync up, and get the latest Parrot BASIC. It's fully hash-enabled and > quite speedy now. > > * Run "basic.pl" to assemble the interpreter, and get it started > > * At the "Ready" prompt, "LOAD eliza" > > * When finished, type RUN > > The crash will happen shortly thereafter. Comments in #parrot seem to
The problem appears to originate in the routine SFETCH, which tries to fetch key "TWIRL" from the hash in P21 without finding it. The hash code returns a null pointer under these circumstances, which is accepted as an empty string by some, but not all, string handling code. In this case, attempting to store the string into an array is invoking string_copy, which assumes the input to be valid. IIRC Dan stated some time ago that checks for null were not to be included, but I don't know what the current status is. -- Peter Gibbs EmKel Systems
