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gcc_extensions [2019/07/25 12:41]
rpjday [Nonlocal gotos]
gcc_extensions [2019/07/25 12:52]
rpjday [Nonlocal gotos]
Line 50: Line 50:
  
 Use ''​%%__builtin_setjmp%%''​ and ''​%%__builtin_longjmp%%''​. 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>​
 +
 +
 +
gcc_extensions.txt ยท Last modified: 2019/07/25 12:53 by rpjday