9. How do you list a file’s date and time? A file’s date and time are stored in the find_t structure returned from the _dos_findfirst() and_dos_findnext() functions. The date and …
5. Can stdout be forced to print somewhere other than the screen? Although the stdout standard stream defaults to the screen, you can force it to print to another device …
1. If errno contains a nonzero number, is there an error? The global variable errno is used by many standard C library functions to pass back to your program an …
7. Why can’t constant values be used to define an array’s initial size? There are times when constant values can be used and there are times when they can’t. A …
5. Can you assign a different address to an array tag? No, although in one common special case, it looks as if you can. An array tag is not something …
3. Can the sizeof operator be used to tell the size of an array passed to a function? No. There’s no way to tell, at runtime, how many elements are …
1. Do array subscripts always start with zero? Yes. If you have an array a[MAX] (in which MAX is some value known at compile time), the first element is a[0], …
9. Is it better to use a macro or a function? The answer depends on the situation you are writing code for. Macros have the distinct advantage of being more …
5. What is the benefit of using #define to declare a constant? Using the #define method of declaring a constant enables you to declare a constant in one place and …
1. What is a macro, and how do you use it? A macro is a preprocessor directive that provides a mechanism for token replacement in your source code. Macros are …
