C Archives - Page 10 of 22

I am trying to understand pointers in C but I am currently confused with the following: char *p = "hello" This is a ...

I was wondering if someone could explain to me what the #pragma pack preprocessor statement does, and more importantly, why one would want ...

When calling execl(...), I get an errno=2. What does it mean? How can I know the meaning of this errno? 15 Answers 15

When should unions be used? Why do we need them? 20 Answers 20

In all programming languages (that I use at least), you must open a file before you can read or write to it. But ...

Consider: struct mystruct_A { char a; int b; char c; } x; struct mystruct_B { int b; char a; } y; The sizes ...

In Visual C++, it’s possible to use #pragma warning (disable: ...). Also I found that in GCC you can override per file compiler ...

Is there any way to achieve function overloading in C? I am looking at simple functions to be overloaded like foo (int a) ...

When I copy code from another file, the formatting is messed up, like this: fun() { for(...) { for(...) { if(...) { } ...

Sorry for asking very basic question. I would like to set OR condition in #ifdef directive.? How to do that ? I tried ...