This should only be called as part of a regex engine, and hence is not
an API function.
|const U32 flags \
|NULLOK re_scream_pos_data *data
Cp |SV* |re_intuit_string|NN REGEXP *const r
|const U32 flags \
|NULLOK re_scream_pos_data *data
Cp |SV* |re_intuit_string|NN REGEXP *const r
-Ap |I32 |regexec_flags |NN REGEXP *const rx|NN char *stringarg \
+Cp |I32 |regexec_flags |NN REGEXP *const rx|NN char *stringarg \
|NN char *strend|NN char *strbeg \
|SSize_t minend|NN SV *sv \
|NULLOK void *data|U32 flags
|NN char *strend|NN char *strbeg \
|SSize_t minend|NN SV *sv \
|NULLOK void *data|U32 flags