View Compilation Error

59399_0_11152.cpp:3: error: variable or field `swap' declared void
59399_0_11152.cpp:3: error: `_int64' was not declared in this scope
59399_0_11152.cpp:3: error: `a' was not declared in this scope
59399_0_11152.cpp:3: error: `_int64' was not declared in this scope
59399_0_11152.cpp:3: error: `b' was not declared in this scope
59399_0_11152.cpp:4: error: initializer expression list treated as compound expression
59399_0_11152.cpp:4: error: expected `,' or `;' before '{' token
59399_0_11152.cpp: In function `int main()':
59399_0_11152.cpp:26: error: `swap' cannot be used as a function