叠拓测试笔试题 yahoo测试类试题.doc

叠拓测试笔试题 yahoo测试类试题 下面是为您介绍的关于叠拓测试笔试题，请您对此进行参考： Instructions Please answer following questions in English, you can only use less than 60 minutes for this test 1. Preprocessor 10 points) a) Please define a Macro by using preprocess instruction #define in 16-bit machine, the constant is used to indicate how many seconds in one year. (To ignore the leap year) #define SEC_PER_YEAR (365*24*60*60UL) (Note: If you define it to be (365*24*60*60)UL, you maybe find that it does not pile well.) b) Please define a Macro, which is used to pare two parameters and return the smaller parameter. #define MIN(a, b) ((a)=(b)?(a):(b)) 2. What is the problem of the below code (5 points) #include string.h char* Func( void ) { char p[10]; strcpy( p, 111 ); return p; } This function can not return the string of 111. 3. Data declarations (10 points) Please define a variable according to the below requirement, for example Requirement: An integer Answer: int a; a) A pointer to an integer (1 point) int *a; b) A pointer to a pointer to an integer (1 point) int **a; c) An array of 10 integers (1 point) int a[10]; d) An array of 10 pointers to integers (1 point) int *a[10]; e) A pointer to an array of 10 integers (2 points) int (*a)[10]; f) A pointer to a function that takes an integer as an argument and returns an integer (2 points) int (*a)(int) g) An array of ten pointers to functions that take an integer argument and return an integer (2 points) int (*a[10])(int) 4. Whats the output of the function and why? (6 points) void foo(void) { unsigned int a = 6; int b = -20; (a+b 6) ? puts( 6) : puts(= 6); } Result:6 Reason: When a variable of integer operates with a variable of unsigned integer, the integer will be automatically converted to unsigned integer, so the -20 will be converted to be a large unsigned integer. 5. Const (9 points) In the following codes, there are some const, what is meaning of each them? a) const char *pa; The content of pa is read-only. b) char * const pc = ca;