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--- gcc_extensions [2019/07/25 12:35]
rpjday [Local labels]
+++ gcc_extensions [2019/07/25 12:52]
rpjday [Nonlocal gotos]
@@ Line 33: / Line 33: @@
 goto *ptr;
 </code>
+==== Nested functions ====
+<code>
+foo (double a, double b)
+{
+  double square (double z) { return z * z; }
+  return square (a) + square (b);
+}
+</code>
+See "trampolines."
+==== Nonlocal gotos ====
+Use ''%%__builtin_setjmp%%'' and ''%%__builtin_longjmp%%''.
+==== Constructing function calls ====
+==== typeof ====
+<code>
+#define max(a,b) \
+  ({ typeof (a) _a = (a); \
+      typeof (b) _b = (b); \
+    _a > _b ? _a : _b; })
+</code>
+==== Conditionals ====
+Equivalent:
+<code>
+x ? x : y
+x ? : y
+</code>
+==== Non-constant initializers ====
+==== Designated initializers ====
+==== Case ranges ====
+<code>
+case low ... high:
+</code>

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