diff options
| -rw-r--r-- | erts/emulator/beam/bif.tab | 1 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_math.c | 5 | ||||
| -rw-r--r-- | lib/compiler/src/beam_type.erl | 1 | ||||
| -rw-r--r-- | lib/compiler/src/beam_validator.erl | 1 | ||||
| -rw-r--r-- | lib/compiler/src/erl_bifs.erl | 1 | ||||
| -rw-r--r-- | lib/compiler/test/float_SUITE.erl | 7 | ||||
| -rw-r--r-- | lib/stdlib/doc/src/math.xml | 1 | ||||
| -rw-r--r-- | lib/stdlib/src/math.erl | 8 |
8 files changed, 24 insertions, 1 deletions
diff --git a/erts/emulator/beam/bif.tab b/erts/emulator/beam/bif.tab index 852b1135fe..32600f4338 100644 --- a/erts/emulator/beam/bif.tab +++ b/erts/emulator/beam/bif.tab @@ -667,6 +667,7 @@ gcbif erlang:floor/1 gcbif erlang:ceil/1 bif math:floor/1 bif math:ceil/1 +bif math:fmod/2 # # Obsolete diff --git a/erts/emulator/beam/erl_math.c b/erts/emulator/beam/erl_math.c index 990fa63bd4..1f270eb55f 100644 --- a/erts/emulator/beam/erl_math.c +++ b/erts/emulator/beam/erl_math.c @@ -256,3 +256,8 @@ BIF_RETTYPE math_floor_1(BIF_ALIST_1) { return math_call_1(BIF_P, floor, BIF_ARG_1); } + +BIF_RETTYPE math_fmod_2(BIF_ALIST_2) +{ + return math_call_2(BIF_P, fmod, BIF_ARG_1, BIF_ARG_2); +} diff --git a/lib/compiler/src/beam_type.erl b/lib/compiler/src/beam_type.erl index b4776294be..d324580cba 100644 --- a/lib/compiler/src/beam_type.erl +++ b/lib/compiler/src/beam_type.erl @@ -594,6 +594,7 @@ is_math_bif(atan2, 2) -> true; is_math_bif(pow, 2) -> true; is_math_bif(ceil, 1) -> true; is_math_bif(floor, 1) -> true; +is_math_bif(fmod, 2) -> true; is_math_bif(pi, 0) -> true; is_math_bif(_, _) -> false. diff --git a/lib/compiler/src/beam_validator.erl b/lib/compiler/src/beam_validator.erl index 6e53f53a20..5659077c5d 100644 --- a/lib/compiler/src/beam_validator.erl +++ b/lib/compiler/src/beam_validator.erl @@ -1646,6 +1646,7 @@ return_type_math(atan2, 2) -> {float,[]}; return_type_math(pow, 2) -> {float,[]}; return_type_math(ceil, 1) -> {float,[]}; return_type_math(floor, 1) -> {float,[]}; +return_type_math(fmod, 2) -> {float,[]}; return_type_math(pi, 0) -> {float,[]}; return_type_math(F, A) when is_atom(F), is_integer(A), A >= 0 -> term. diff --git a/lib/compiler/src/erl_bifs.erl b/lib/compiler/src/erl_bifs.erl index 831730ba48..d60f73d421 100644 --- a/lib/compiler/src/erl_bifs.erl +++ b/lib/compiler/src/erl_bifs.erl @@ -138,6 +138,7 @@ is_pure(math, erf, 1) -> true; is_pure(math, erfc, 1) -> true; is_pure(math, exp, 1) -> true; is_pure(math, floor, 1) -> true; +is_pure(math, fmod, 2) -> true; is_pure(math, log, 1) -> true; is_pure(math, log2, 1) -> true; is_pure(math, log10, 1) -> true; diff --git a/lib/compiler/test/float_SUITE.erl b/lib/compiler/test/float_SUITE.erl index 0ebc71eb9b..08c3dd8593 100644 --- a/lib/compiler/test/float_SUITE.erl +++ b/lib/compiler/test/float_SUITE.erl @@ -155,6 +155,13 @@ math_functions(Config) when is_list(Config) -> 5.0 = math:floor(id(5.4)), 6.0 = math:ceil(id(5.4)), + 0.0 = math:fmod(42, 42), + 0.25 = math:fmod(1, 0.75), + -1.0 = math:fmod(-4.0, 1.5), + -0.375 = math:fmod(-3.0, -0.875), + 0.125 = math:fmod(8.125, -4), + {'EXIT',{badarith,_}} = (catch math:fmod(5.0, 0.0)), + %% Only for coverage (of beam_type.erl). {'EXIT',{undef,_}} = (catch math:fnurfla(0)), {'EXIT',{undef,_}} = (catch math:fnurfla(0, 0)), diff --git a/lib/stdlib/doc/src/math.xml b/lib/stdlib/doc/src/math.xml index 70ca6ae78e..b4f096217a 100644 --- a/lib/stdlib/doc/src/math.xml +++ b/lib/stdlib/doc/src/math.xml @@ -62,6 +62,7 @@ <name name="cosh" arity="1"/> <name name="exp" arity="1"/> <name name="floor" arity="1"/> + <name name="fmod" arity="2"/> <name name="log" arity="1"/> <name name="log10" arity="1"/> <name name="log2" arity="1"/> diff --git a/lib/stdlib/src/math.erl b/lib/stdlib/src/math.erl index 1db48cd0a2..3a3b384d8f 100644 --- a/lib/stdlib/src/math.erl +++ b/lib/stdlib/src/math.erl @@ -26,7 +26,8 @@ -export([sin/1, cos/1, tan/1, asin/1, acos/1, atan/1, atan2/2, sinh/1, cosh/1, tanh/1, asinh/1, acosh/1, atanh/1, exp/1, log/1, log2/1, log10/1, pow/2, sqrt/1, erf/1, erfc/1, - ceil/1, floor/1]). + ceil/1, floor/1, + fmod/2]). -spec acos(X) -> float() when X :: number(). @@ -99,6 +100,11 @@ exp(_) -> floor(_) -> erlang:nif_error(undef). +-spec fmod(X, Y) -> float() when + X :: number(), Y :: number(). +fmod(_, _) -> + erlang:nif_error(undef). + -spec log(X) -> float() when X :: number(). log(_) -> |