In file included from /usr/include/c++/4.4/tuple:35, from urgenta.cpp:2: /usr/include/c++/4.4/c++0x_warning.h:31:2: error: #error This file requires compiler and library support for the upcoming ISO C++ standard, C++0x. This support is currently experimental, and must be enabled with the -std=c++0x or -std=gnu++0x compiler options. urgenta.cpp:9: error: expected nested-name-specifier before 'PI' urgenta.cpp:9: error: 'PI' has not been declared urgenta.cpp:9: error: expected ';' before '=' token urgenta.cpp:9: error: expected unqualified-id before '=' token urgenta.cpp:10: error: 'PI' was not declared in this scope urgenta.cpp:10: error: template argument 1 is invalid urgenta.cpp:10: error: template argument 2 is invalid urgenta.cpp:10: error: invalid type in declaration before ';' token urgenta.cpp:12: error: '>>' should be '> >' within a nested template argument list urgenta.cpp:24: error: 'tuple' was not declared in this scope urgenta.cpp:24: error: expected primary-expression before 'int' urgenta.cpp:24: error: expected primary-expression before 'int' urgenta.cpp:24: error: expected primary-expression before 'int' urgenta.cpp:24: error: 'tuple' was not declared in this scope urgenta.cpp:24: error: expected primary-expression before 'int' urgenta.cpp:24: error: expected primary-expression before 'int' urgenta.cpp:24: error: expected primary-expression before 'int' urgenta.cpp:24: error: initializer expression list treated as compound expression urgenta.cpp:24: error: expected ',' or ';' before '{' token urgenta.cpp: In function 'int main()': urgenta.cpp:41: error: request for member 'push_back' in 'g', which is of non-class type 'int' urgenta.cpp:41: error: 'make_tuple' was not declared in this scope urgenta.cpp:45: error: request for member 'begin' in 'g', which is of non-class type 'int' urgenta.cpp:45: error: request for member 'end' in 'g', which is of non-class type 'int' urgenta.cpp:48: error: 'tie' was not declared in this scope urgenta.cpp:48: error: invalid types 'int[int]' for array subscript urgenta.cpp:61: error: 'tie' was not declared in this scope urgenta.cpp:61: error: invalid types 'int[int]' for array subscript