View Compilation Error

0_0_12392308_12647.cpp:20: error: integer constant is too large for "long" type
0_0_12392308_12647.cpp:20: error: expected unqualified-id before numeric constant
0_0_12392308_12647.cpp:20: error: expected `,' or `;' before numeric constant
0_0_12392308_12647.cpp: In function `void read(T&)':
0_0_12392308_12647.cpp:22: error: integer constant is too large for "long" type
0_0_12392308_12647.cpp:22: error: non-lvalue in increment
0_0_12392308_12647.cpp:23: error: integer constant is too large for "long" type
0_0_12392308_12647.cpp:23: error: non-lvalue in increment
0_0_12392308_12647.cpp: In function `int main()':
0_0_12392308_12647.cpp:50: error: `T' undeclared (first use this function)
0_0_12392308_12647.cpp:50: error: (Each undeclared identifier is reported only once for each function it appears in.)