Reference

gcc.cdecl.declare(node[, f])

Formats the given tree node as a string of C code, and returns the string. A second, optional argument f specifies a function that is called for each traversed node. The function may return a string to override that node’s identifier; otherwise, if that node is a type declaration, the type is expanded to its canonical form.

node can be of any of the following tree code classes:

• type; where the tree code can be any of the following:
  • array_type,
  • boolean_type,
  • complex_type,
  • enumeral_type,
  • function_type,
  • integer_type,
  • pointer_type,
  • real_type,
  • record_type,
  • union_type,
  • vector_type,
  • void_type;
• declaration; where the tree code can be any of the following:
  • field_decl,
  • function_decl,
  • type_decl,
  • var_decl.

Each node passed to f as its first argument is of one of the following tree code classes:

• type; where the tree code is one of the following:
  • enumeral_type,
  • record_type,
  • union_type;
• declaration; where the tree code is one of the following:
  • field_decl,
  • function_decl,
  • type_decl,
  • var_decl.