腾讯 c/c++笔试题 记了一部分 1、请定义一个宏，比较两个数a、b的大小，不能使用大于、小于、if语句 #define Max(a,b) ( a/b)?a:b 2、如何输出源文件的标题和目前执行行的行数 int line = __LINE__； char *file = __FILE__； cout<<"file name is "<<(file)<<",line is "<
Introduction The usual implementation of malloc and free are unforgiving to errors in their callers' code, including cases where the programmer overflows an array, forgets to free memory, or frees a memory block twice. This often does not affect the
