[PATCH] pvm: add `pvm_sizeof (PVM_NULL) == 0`

[Mohammad-Reza Nabipoor]

2023-01-19  Mohammad-Reza Nabipoor  <mnabipoor@gnu.org>

        * libpoke/pvm-val.c (pvm_sizeof): Add case for `PVM_NULL'.
---
 ChangeLog         | 4 ++++
 libpoke/pvm-val.c | 2 ++
 2 files changed, 6 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index b67d08b9..a184610e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2023-01-19  Mohammad-Reza Nabipoor  <mnabipoor@gnu.org>
+
+       * libpoke/pvm-val.c (pvm_sizeof): Add case for `PVM_NULL'.
+
 2023-01-20  Jose E. Marchesi  <jemarch@gnu.org>
 
        * configure.ac: Report missing gensub-capable awk at configure
diff --git a/libpoke/pvm-val.c b/libpoke/pvm-val.c
index 2c6175dc..b8a3eb31 100644
--- a/libpoke/pvm-val.c
+++ b/libpoke/pvm-val.c
@@ -986,6 +986,8 @@ pvm_sizeof (pvm_val val)
   else if (PVM_IS_CLS (val))
     /* By convention, closure values have size zero.  */
     return 0;
+  else if (val == PVM_NULL)
+    return 0;
 
   assert (0);
   return 0;
-- 
2.39.1