View Compilation Error

0_0_24110797_6231.cpp: In function 'MyStruct* csh()':
0_0_24110797_6231.cpp:118:42: error: 'malloc' was not declared in this scope
  s = (list)malloc(sizeof(struct MyStruct));
                                          ^
0_0_24110797_6231.cpp: In function 'MyQueue* BuildQueue()':
0_0_24110797_6231.cpp:129:42: error: 'malloc' was not declared in this scope
  s = (queue)malloc(sizeof(struct MyQueue));
                                          ^