Implement the new ceil/1 and floor/1 guard BIFs

Implement as ceil/1 and floor/1 as new guard BIFs (essentially part of
Erlang language). They are guard BIFs because trunc/1 is a guard
BIF. It would be strange to have trunc/1 as a part of the language, but
not ceil/1 and floor/1.

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/stdlib/src/erl_internal.erl b/lib/stdlib/src/erl_internal.erl
index 5d6aa0ebe8..006e7946af 100644
--- a/lib/stdlib/src/erl_internal.erl
+++ b/lib/stdlib/src/erl_internal.erl
@@ -69,8 +69,10 @@ guard_bif(binary_part, 2) -> true;
 guard_bif(binary_part, 3) -> true;
 guard_bif(bit_size, 1) -> true;
 guard_bif(byte_size, 1) -> true;
+guard_bif(ceil, 1) -> true;
 guard_bif(element, 2) -> true;
 guard_bif(float, 1) -> true;
+guard_bif(floor, 1) -> true;
 guard_bif(hd, 1) -> true;
 guard_bif(length, 1) -> true;
 guard_bif(map_size, 1) -> true;
@@ -258,6 +260,7 @@ bif(bitsize, 1) -> true;
 bif(bit_size, 1) -> true;
 bif(bitstring_to_list, 1) -> true;
 bif(byte_size, 1) -> true;
+bif(ceil, 1) -> true;
 bif(check_old_code, 1) -> true;
 bif(check_process_code, 2) -> true;
 bif(check_process_code, 3) -> true;
@@ -278,6 +281,7 @@ bif(float_to_list, 1) -> true;
 bif(float_to_list, 2) -> true;
 bif(float_to_binary, 1) -> true;
 bif(float_to_binary, 2) -> true;
+bif(floor, 1) -> true;
 bif(garbage_collect, 0) -> true;
 bif(garbage_collect, 1) -> true;
 bif(garbage_collect, 2) -> true;