View Compilation Error

0_0_30396338_2247.cpp: In function 'bool cmp(student, student)':
0_0_30396338_2247.cpp:17:55: error: 'strcmp' was not declared in this scope
   if (a.cost == b.cost) { return strcmp(a.name, b.name) < 0; }
                                                       ^
0_0_30396338_2247.cpp: In function 'int main()':
0_0_30396338_2247.cpp:26:33: error: 'strcmp' was not declared in this scope
    if (strcmp(stu[t].name, "eod") == 0) break;
                                 ^