Literal « integer « C Data Type Q&A

1. How does C Handle Integer Literals with Leading Zeros, and What About atoi?    stackoverflow.com

When you create an integer with leading zeros, how does c handle it? Is it different for different versions of C? In my case, they just seem to be dropped (but maybe ...

2. short int literals in C    stackoverflow.com

Why are there no short int literals in 'C'?

3. Enum values from non-integer literals?    stackoverflow.com

Is it possible in C to declare enum values from anything other than integer literals?

4. Why does the C parser not allow spaces between the digits of an integer literal?    stackoverflow.com

I expect it would break some other parse but this is not immediately springing to mind... E.g. If I say this:

#include <stdio.h>
int main()
{
    int i = 10 000;
  ...

5. error: invalid conversion from `int' to `Literal*'    bytes.com

By declaring a to be of type Literal*, you are making it a dynamic variable, which means you have to allocate memory for it and then delete it after you finish using it. You can get rid of the * in your declaration and it should work, or you can allocate memory for it with new and then release the memory ...

6. Integer Literals    bytes.com

A question recently came up of late in some interviewing techniques discussions and I vaguely remember this being an ANSI C++ related issue but cannot remember the specifics. Basically if you have the following: #define foo(x) x*x .. .. .. foo(3+2); Beside the obvious feau paux of not wrapping the macro parameter in parens, the common misconception is the actual macro ...