View Compilation Error

0_0_9087208_29337.cpp: In function `int main()':
0_0_9087208_29337.cpp:25: error: `prlong' undeclared (first use this function)
0_0_9087208_29337.cpp:25: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_9087208_29337.cpp:25: error: expected `;' before "longf"
0_0_9087208_29337.cpp:27: error: expected `;' before "longf"