diff options
Diffstat (limited to 'system/doc')
| -rw-r--r-- | system/doc/tutorial/nif.xmlsrc | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/system/doc/tutorial/nif.xmlsrc b/system/doc/tutorial/nif.xmlsrc index 6cb54ff7ff..79cef31160 100644 --- a/system/doc/tutorial/nif.xmlsrc +++ b/system/doc/tutorial/nif.xmlsrc @@ -29,7 +29,7 @@ <file>nif.xml</file> </header> <p>This is an example of how to solve the <seealso marker="example">example problem</seealso> - by using NIFs. NIFs where introduced in R13B03 as an experimental + by using NIFs. NIFs were introduced in R13B03 as an experimental feature. It is a simpler and more efficient way of calling C-code than using port drivers. NIFs are most suitable for synchronous functions like <c>foo</c> and <c>bar</c> in the example, that does some @@ -85,7 +85,7 @@ <p>The function arguments passed to a NIF appears in an array <c>argv</c>, with <c>argc</c> as the length of the array and thus the arity of the function. The Nth argument of the function can be accessed as - <c>argv[N-1]</c>. NIFs also takes an environment argument that + <c>argv[N-1]</c>. NIFs also take an environment argument that serves as an opaque handle that is needed to be passed on to most API functions. The environment contains information about the calling Erlang process.</p> @@ -98,7 +98,7 @@ structures containing name, arity and function pointer of each NIF. The other arguments are pointers to callback functions that can be used to initialize the library. We do not use them - is this simple example so we set them all to <c>NULL</c>.</p> + in this simple example so we set them all to <c>NULL</c>.</p> <p>Function arguments and return values are represented as values of type <c>ERL_NIF_TERM</c>. We use functions like <c>enif_get_int</c> and <c>enif_make_int</c> to convert between Erlang term and C-type. |