The "new" keyword means something in ANSI C? [closed] - c

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Working on an old code written in ANSI C99 I faced a prototype that I can undestand:
short GR_GetX (GR_Block new);
short GR_GetY (GR_Block new);
The IDE indicates a warning, but the compiler doens't indicates an error.
There is some advanced interpretation of this keyword, or is just an old error that passes for the compiler?

new is not part of C keywords.
Your IDE probably tries to parse this file as C++.
Anyway, it's good idea to avoid using C++ keywords even in C code for better interoperability.

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Store WINAPI Functionpointer in struct [closed]

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I have the following problem: I have to build a DLL with some Header-Files from a supplier. There are some typedefs in those headerfiles which store WINAPI-Functionpointers.
Example:
typedef struct {
int(WINAPI *myFunc)(int, int);
}
However, VS2015 always underlines the star ("*") saying it expected an ")".
I cant change the functions stored in those pointers so I have to fix this.
Anyone knows a solution for this?
Since the WINAPI-Macro is defined in Windows.h, I just forgot to include it.
Result: Including the -Header seems to fix this problem.

undefined reference to <function name> in the same project file [closed]

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I'm using codeblocks IDE and I don't know what is the problem.
I tried making the variables global but it still doesn't work.
The problem is in the function name. Calculate_area has a capital 'C' in its function declaration name, but not in the prototype declaration.
Change your function declaration at line 31 with:
unsigned long calculate_area(unsigned long side);

Broken bar (¦) as OR operator in "The C Programming Language" book [closed]

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EDIT: Sorry, I accidentally submitted the question before I was done. Boy, are you guys quick!
I've been going through the second edition of The C Programming Language and noticed that the book uses broken bars instead of pipes. Was this an old notation or are they interchangeable?
Its a font problem, most of the books show it as broken pipe even though it is the pipe operator
Boolean OR operator. It will set all bits true that are true in either of both values provided.
if ( a==0 || b==3 )
if any one of these is true the "if" statement will execute because it looks for true or
false values.

Why It showing Hello two times try in on Turbo C v 3.0 [closed]

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although the value of NULL 0. explain with good example.
void main()
{
int i;
for(i=0;NULL;i++)
{
printf("Hello");
}
printf("Hello");
}
This is a well-known bug in the Turbo C 3.0 compiler.
But note one thing: currently the behaviour of your function is undefined as main should always have an int return type. Formally, a standards compliant compiler is permitted to do anything with your program!
If you adjust your program so it has no undefined constructs then, on a standard compliant compiler, it will be guaranteed to output "hello" exactly once.

Type expected declaration or statement at end of input [closed]

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I am making a C program that is a simple calculator without a GUI, called "Quical". (Check out the code on Github). I am somewhat new to C, and so I am making some syntax errors. One of the errors is this:
expected declaration or statement at end of input
Another one of the errors that comes up is this:
else without a previous if
Here is my code.
Hopefully, this can shed some light as to why I am getting these syntax errors. Any help would be much appreciated.
Your braces don't match. You have something like
main()
{
some statement
{
}
another
{
}
and it ends.
It is saying it wants a statement here. Try that and see what the next error is.

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