diff options
| -rw-r--r-- | runtime/doc/eval.txt | 5 | ||||
| -rw-r--r-- | src/nvim/eval.c | 7 | ||||
| -rw-r--r-- | src/nvim/eval.lua | 1 | ||||
| -rw-r--r-- | src/nvim/testdir/test_float_func.vim | 1 |
4 files changed, 13 insertions, 1 deletions
diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt index de2650baa4..811dbad559 100644 --- a/runtime/doc/eval.txt +++ b/runtime/doc/eval.txt @@ -2190,6 +2190,7 @@ insert({list}, {item} [, {idx}]) invert({expr}) Number bitwise invert isdirectory({directory}) Number |TRUE| if {directory} is a directory islocked({expr}) Number |TRUE| if {expr} is locked +isnan({expr}) Number |TRUE| if {expr} is NaN id({expr}) String identifier of the container items({dict}) List key-value pairs in {dict} jobpid({id}) Number Returns pid of a job. @@ -5319,6 +5320,10 @@ items({dict}) *items()* entry and the value of this entry. The |List| is in arbitrary order. +isnan({expr}) *isnan()* + Return |TRUE| if {expr} is a float with value NaN. > + echo isnan(0.0 / 0.0) +< 1 jobpid({job}) *jobpid()* Return the PID (process id) of |job-id| {job}. diff --git a/src/nvim/eval.c b/src/nvim/eval.c index 1570af07d7..94dcbe0dcf 100644 --- a/src/nvim/eval.c +++ b/src/nvim/eval.c @@ -47,6 +47,7 @@ #include "nvim/indent_c.h" #include "nvim/indent.h" #include "nvim/mark.h" +#include "nvim/math.h" #include "nvim/mbyte.h" #include "nvim/memline.h" #include "nvim/memory.h" @@ -12028,6 +12029,12 @@ static void f_islocked(typval_T *argvars, typval_T *rettv, FunPtr fptr) clear_lval(&lv); } +// "isnan()" function +static void f_isnan(typval_T *argvars, typval_T *rettv, FunPtr fptr) +{ + rettv->vval.v_number = argvars[0].v_type == VAR_FLOAT + && xisnan(argvars[0].vval.v_float); +} /// Turn a dictionary into a list /// diff --git a/src/nvim/eval.lua b/src/nvim/eval.lua index 6b63003e69..bc3e612b0a 100644 --- a/src/nvim/eval.lua +++ b/src/nvim/eval.lua @@ -190,6 +190,7 @@ return { invert={args=1}, isdirectory={args=1}, islocked={args=1}, + isnan={args=1}, id={args=1}, items={args=1}, jobclose={args={1, 2}, func="f_chanclose"}, diff --git a/src/nvim/testdir/test_float_func.vim b/src/nvim/testdir/test_float_func.vim index 5ea5192994..a44c5a9e98 100644 --- a/src/nvim/testdir/test_float_func.vim +++ b/src/nvim/testdir/test_float_func.vim @@ -289,7 +289,6 @@ func Test_trunc() endfunc func Test_isnan() - throw 'skipped: Nvim does not support isnan()' call assert_equal(0, isnan(1.0)) call assert_equal(1, isnan(0.0/0.0)) call assert_equal(0, isnan(1.0/0.0)) |