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Nimrod-for-C-programmers.md

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+(Work in progress)
+
+This is a guide for people with experience in C or a similar language. The general tutorials can be found here:
+
+http://nimrod-lang.org/tut1.html  
+http://nimrod-lang.org/tut2.html
+
+The manual provides a more or less complete overview of the language:
+
+http://nimrod-lang.org/manual.html
+
+### Structs - Tuples and Objects
+
+Tuples and Objects in Nimrod are kind of like structs in C, but not really.
+
+### Interfacing C and Nimrod
+
+See [Foreign Function Interface](http://nimrod-lang.org/manual.html#foreign-function-interface)
+
+### Cheat Sheet
+Note: Code examples are not exactly one-to-one, there may be subtle differences in the semantics. See comments.
+<table>
+  <tr>
+    <th>C</th><th>Nimrod</th><th>Comment</th>
+  </tr>
+
+  <tr>
+<td>
+```C
+int x = foobar() ? 42 : 0;
+```
+</td>
+<td>
+```Nimrod
+var x = if foobar(): 42 else: 0
+```
+</td>
+<td>
+<i>If-statements return the value of the expression they evaluate to, so Nimrod doesn't need a </i><b>ternary operator</b>.</i>
+</td>
+  </tr>
+
+  <tr>
+<td>
+```C
+void foobar(person_t *a) {
+  person_t b;
+  b = *a;
+  b.name = "Bob";
+  *a = b;
+}
+```
+</td>
+<td>
+```Nimrod
+proc foobar(a: ref TPerson) =
+  var b: TPerson
+  b = a[]
+  b.name = "Bob"
+  a[] = b
+```
+</td>
+<td><b>Dereference.</b> <i>In C, only the pointer to the strings in the struct is copied. In Nimrod, the string is also copied, but refs are not deep-copied.</i> </td>
+  </tr>
+</table>