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| author | Björn Gustavsson <[email protected]> | 2014-08-14 13:21:20 +0200 |
|---|---|---|
| committer | Björn Gustavsson <[email protected]> | 2014-08-14 13:21:20 +0200 |
| commit | d7e30235432774fa12211139c68165f4e21055bd (patch) | |
| tree | 07b3e6f544372221942e5c803b9ba33c796434fa | |
| parent | 5159961b2b9c23e764ee27dd2806432794764d46 (diff) | |
| parent | 7ff17ddfd337d1c49c1174d8d24b2ce0671b2c9e (diff) | |
| download | otp-d7e30235432774fa12211139c68165f4e21055bd.tar.gz otp-d7e30235432774fa12211139c68165f4e21055bd.tar.bz2 otp-d7e30235432774fa12211139c68165f4e21055bd.zip | |
Merge branch 'bjorn/erts/export-bifs/OTP-12099'
* bjorn/erts/export-bifs/OTP-12099:
BIFs should be considered exported
| -rw-r--r-- | erts/doc/src/erlang.xml | 9 | ||||
| -rw-r--r-- | erts/emulator/beam/bif.c | 11 |
2 files changed, 12 insertions, 8 deletions
diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml index 84168397f6..3d8ef9a97d 100644 --- a/erts/doc/src/erlang.xml +++ b/erts/doc/src/erlang.xml @@ -1252,10 +1252,11 @@ true <fsummary>Check if a function is exported and loaded</fsummary> <desc> <p>Returns <c>true</c> if the module <c><anno>Module</anno></c> is loaded - and contains an exported function <c><anno>Function</anno>/<anno>Arity</anno></c>; - otherwise <c>false</c>.</p> - <p>Returns <c>false</c> for any BIF (functions implemented in C - rather than in Erlang).</p> + and contains an exported function <c><anno>Function</anno>/<anno>Arity</anno></c>, + or if there is a BIF (a built-in function implemented in C) + with the given name; otherwise returns <c>false</c>.</p> + <note><p>This function used to return false for built-in + functions before the 18.0 release.</p></note> </desc> </func> <func> diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c index fcbeb6cf5c..4a84dcfe34 100644 --- a/erts/emulator/beam/bif.c +++ b/erts/emulator/beam/bif.c @@ -3989,16 +3989,19 @@ BIF_RETTYPE halt_2(BIF_ALIST_2) BIF_RETTYPE function_exported_3(BIF_ALIST_3) { + int arity; if (is_not_atom(BIF_ARG_1) || is_not_atom(BIF_ARG_2) || is_not_small(BIF_ARG_3)) { BIF_ERROR(BIF_P, BADARG); } - if (erts_find_function(BIF_ARG_1, BIF_ARG_2, signed_val(BIF_ARG_3), - erts_active_code_ix()) == NULL) { - BIF_RET(am_false); + arity = signed_val(BIF_ARG_3); + if (erts_find_function(BIF_ARG_1, BIF_ARG_2, arity, + erts_active_code_ix()) != NULL || + erts_is_builtin(BIF_ARG_1, BIF_ARG_2, arity)) { + BIF_RET(am_true); } - BIF_RET(am_true); + BIF_RET(am_false); } /**********************************************************************/ |