add f16 to langref

andrewrk · andrewrk · commit 6f88ecc9b6ca · 2018-06-27T12:59:12.000-04:00
diff --git a/doc/langref.html.in b/doc/langref.html.in
@@ -367,6 +367,11 @@ pub fn main() void {
           <td>for ABI compatibility with C</td>
         </tr>
 
+        <tr>
+          <td><code>f16</code></td>
+          <td><code>float</code></td>
+          <td>16-bit floating point (10-bit mantissa) IEEE-754-2008 binary16</td>
+        </tr>
         <tr>
           <td><code>f32</code></td>
           <td><code>float</code></td>
@@ -654,6 +659,7 @@ fn divide(a: i32, b: i32) i32 {
       {#header_open|Floats#}
       <p>Zig has the following floating point types:</p>
       <ul>
+          <li><code>f16</code> - IEEE-754-2008 binary16</li>
           <li><code>f32</code> - IEEE-754-2008 binary32</li>
           <li><code>f64</code> - IEEE-754-2008 binary64</li>
           <li><code>f128</code> - IEEE-754-2008 binary128</li>
@@ -3671,10 +3677,11 @@ test "implicit unsigned integer to signed integer" {
 }
 
 test "float widening" {
-    var a: f32 = 12.34;
-    var b: f64 = a;
-    var c: f128 = b;
-    assert(c == a);
+    var a: f16 = 12.34;
+    var b: f32 = a;
+    var c: f64 = b;
+    var d: f128 = c;
+    assert(d == a);
 }
       {#code_end#}
       {#header_close#}
