View Compilation Error

0_0_3826090_7165.cpp: In function `void main_process()':
0_0_3826090_7165.cpp:90: error: `s' undeclared (first use this function)
0_0_3826090_7165.cpp:90: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_3826090_7165.cpp:90: error: expected `;' before "if"