typedef struct{
int x;
char na[20];
char sur[20];
} Stu;
typedef struct{
Stu *arr;
int size;
int sort;
} Stus;
I want to ask how can i free() the matrix arr.
I tried free(arr), free(Stus.arr) and i get errors with gcc.
My problem, in general, is how can i refer to arr in my program. I mean if using
typedef struct{
int x;
char na[20];
char sur[20];
} Stu;
typedef struct{
Stu *arr;
int size;
int sort;
} Stus;
I want to ask how can i free() the matrix arr.
I tried free(arr), free(Stus.arr) and i get errors with gcc.
My problem, in general, is how can i refer to arr in my program. I mean if using
Code:
Stus.arr
gives me error.
You cant do free(Stus.arr) because Stus is now a type...first you have to create an object of type Stus...
Code:
Stus x;
Now you can refer to to its member arr using this...
Yes, that's solved my provlem!
And if i want to refer to an item from Stu arr ??
My new global variables, after your help, are:
Code:
//these are global
typedef struct{
int x;
char na[20];
char sur[20];
} Stu;
typedef struct{
Stu *arr;
int size;
int sort;
} Stus;
Stus foit;
I tried for example:
Code:
foit.arr.sur
but that is wrong.
---------- Post updated at 05:40 PM ---------- Previous update was at 04:58 PM ----------
--UPDATE--
Sorry, my mistake.
i forget using arr as an array.
Now i use something like :
Code:
//these are global
typedef struct{
int x;
char na[20];
char sur[20];
} Stu;
typedef struct{
Stu *arr;
int size;
int sort;
} Stus;
Stus foit
...
//these are into main
...
for( i=0;i<y;i++ )
{
scanf( "%d", &foit.arr[i].x);
scanf( "%s", foit.arr[i].na);
scanf( "%s", foit.arr[i].sur);
}
...
and it works perfectly for the moment. But can anyone explains me scanf() difference between integer and char ? If i put & in front of the char variable i get errors.
Working on some source I've found some strange declaration in included header file.
I am looking for someone's help to understand me that syntax's, as it is fine (it is compiled without any complain,) but for me it seems out of any sense!
Acctually, it warning by CC compiler: " Warning: Implicit... (1 Reply)
Hello,
This is related to the closed post in the forum for the installation of the same software called arachne, but with different error message:
In file included from ueberal/MiniSuperizer.cc:5:0:
./random/GnuRandom.h:54:5: error: ‘_G_uint32_t’ does not name a type
_G_uint32_t u;
^... (11 Replies)
Sorry for the “word salad” subject, but I wanted to cast a wide net for help.
I've created an IP (Internet Protocol) server which serves HTTP, SMTP, and FTP requests.
As you probably know, they all require creating a socket, listening on it, accepting connections, and then having a short... (3 Replies)
I am getting confused compiling a program that gives me the following error
../../../tomso/algeb/vector.hpp:19:9: error: ‘Vector' does not name a type
typedef Vector<float> Vecflt; (1 Reply)
I've google a bit about this and couldn't find an answer. Actually I read that it can't be done.
Basically I've defined the following structure and typedef it as follows.
stuct Name {
};
typdef struct Name Name.
and right after it, defined some API that use it.
void blabla(Name*... (6 Replies)
I am using gcc3.3.5 on solaris2.7. Its a 64 bit compilation
I am compiling a file 'plugin.cpp'. It includes mach.h and the complation gives the following error.
-----------------------------------------------------------------
mach.h error: conflicting
types for `typedef vx_u32_t... (0 Replies)
03-31-2012
