Document PERL_SI

1 files changed, 6 insertions, 0 deletions

diff --git a/cop.h b/cop.h
index b675370d54..b61bb30174 100644
--- a/cop.h
+++ b/cop.h
@@ -1011,6 +1011,12 @@ struct stackinfo {
 
 };
 
+/*
+=for apidoc Ay||PERL_SI
+Use this typedef to declare variables that are to hold C<struct stackinfo>.
+
+=cut
+*/
 typedef struct stackinfo PERL_SI;
 
 #define cxstack		(PL_curstackinfo->si_cxstack)