lib/file: add a `from` parameter on `write_native` and `io_write`

[nit.git] / lib / standard / file.nit

diff --git a/lib/standard/file.nit b/lib/standard/file.nit
index efdf46e..2d4e9df 100644 (file)
--- a/lib/standard/file.nit
+++ b/lib/standard/file.nit
@@ -77,9 +77,10 @@ abstract class FileStream
        # If the buf_size is <= 0, its value will be 512 by default
        #
        # The mode is any of the buffer_mode enumeration in `Sys`:
-       #       - buffer_mode_full
-       #       - buffer_mode_line
-       #       - buffer_mode_none
+       #
+       # * `buffer_mode_full`
+       # * `buffer_mode_line`
+       # * `buffer_mode_none`
        fun set_buffering_mode(buf_size, mode: Int) do
                if buf_size <= 0 then buf_size = 512
                if _file.set_buffering_type(buf_size, mode) != 0 then
@@ -184,7 +185,7 @@ class FileWriter
                        last_error = new IOError("cannot write to non-writable stream")
                        return
                end
-               write_native(s.items, s.length)
+               write_native(s.items, 0, s.length)
        end
 
        redef fun write(s)
@@ -225,7 +226,7 @@ class FileWriter
        redef var is_writable = false
 
        # Write `len` bytes from `native`.
-       private fun write_native(native: NativeString, len: Int)
+       private fun write_native(native: NativeString, from, len: Int)
        do
                if last_error != null then return
                if not _is_writable then
@@ -237,7 +238,7 @@ class FileWriter
                        _is_writable = false
                        return
                end
-               var err = _file.io_write(native, len)
+               var err = _file.io_write(native, from, len)
                if err != len then
                        # Big problem
                        last_error = new IOError("Problem in writing : {err} {len} \n")
@@ -359,7 +360,7 @@ class Path
        # Path to this file
        redef fun to_s do return path
 
-       # Name of the file name at `to_s`
+       # Short name of the file at `to_s`
        #
        # ~~~
        # var path = "/tmp/somefile".to_path
@@ -1159,11 +1160,11 @@ private extern class NativeFile `{ FILE* `}
                return fread(buf, 1, len, self);
        `}
 
-       fun io_write(buf: NativeString, len: Int): Int `{
-               return fwrite(buf, 1, len, self);
+       fun io_write(buf: NativeString, from, len: Int): Int `{
+               return fwrite(buf+from, 1, len, self);
        `}
 
-       fun write_byte(value: Int): Int `{
+       fun write_byte(value: Byte): Int `{
                unsigned char b = (unsigned char)value;
                return fwrite(&b, 1, 1, self);
        `}