--- In c-prog@yahoogroups.com, Pedro Izecksohn [EMAIL PROTECTED] wrote:
OK, I wrote a bad piece of code. Let me try to codify my problem again:
#include limits.h
#include stdio.h
int main (void) {
unsigned short int a;
unsigned long long int b, c;
a = USHRT_MAX;
b = (a*a);
c =
Sorry- must have got up too early:
But if you like at these values in hex
'like' - 'look'
But hopefully some can quote the relevant bit of the Standard.
'some' - 'someone'
---
Ahmed Shabana wants to stay in better touch using some of Google's coolest new
products.
If you already have Gmail or Google Talk, visit:
http://mail.google.com/mail/b-a0c3cfa5cd-0bb9fda036-f3957799f9ad4eee
You'll need to
#includestdio.h
#includestring.h
struct sub {
char name[100];
};
struct maiN {
struct sub *s1;
int c;
};
int main()
{
struct maiN s0;
strcpy(s0.s1-name,hi man );
return 0;
}
It compile so good
but when run get segmentation fault
CAN ANY
--- In c-prog@yahoogroups.com, Ahmed Shabana [EMAIL PROTECTED] wrote:
struct maiN s0;
strcpy(s0.s1-name,hi man );
but when run get segmentation fault
You haven't initialised s0, so s1 could be pointing anywhere.
hello,
If you multiply two unsigned shorts together, you'll get an unsigned short, or,
if the number is to big, it'll overflow; you'll want to use an int.
Hope that helps somewhat,
Thanks,
Tyler Littlefield
email: [EMAIL PROTECTED]
web: tysdomain-com
Visit for quality software and web design.
--- In c-prog@yahoogroups.com, David Hamill [EMAIL PROTECTED] wrote:
John wrote:
You haven't initialised s0, so s1 could be pointing
anywhere.
But my money would be on it having the value zero. I.e. an
uninitialised pointer is a null pointer. I don't know if
this is in the standard
--- In c-prog@yahoogroups.com, John Matthews [EMAIL PROTECTED] wrote:
So the value of the
pointer will be whatever was in memory before, which might be 0, but it
very much depends on your compiler/OS/what happened a bit earlier etc.
Adding a printf() in the OP's code, using gcc under linux:
On Sun, Nov 23, 2008 at 1:19 PM, John Matthews [EMAIL PROTECTED] wrote:
--- In c-prog@yahoogroups.com, John Matthews [EMAIL PROTECTED] wrote:
So the value of the
pointer will be whatever was in memory before, which might be 0, but it
very much depends on your compiler/OS/what happened a bit
On Sun, Nov 23, 2008 at 4:48 AM, Ahmed Shabana [EMAIL PROTECTED] wrote:
#includestdio.h
#includestring.h
struct sub {
char name[100];
};
struct maiN {
struct sub *s1;
int c;
};
sub *s1 is a pointer inside maiN
int main()
{
struct maiN s0;
--- In c-prog@yahoogroups.com, Ahmed Shabana [EMAIL PROTECTED] wrote:
okay what is the solution of this problem ???/
HOW can I assign the variable which called name
Example:
int main()
{
struct sub sub0;
struct maiN s0;
s0.s1 = sub0;
s0.c = 42;
strcpy(s0.s1-name,hi
On Sun, Nov 23, 2008 at 2:10 PM, Brett McCoy [EMAIL PROTECTED] wrote:
On Sun, Nov 23, 2008 at 4:48 AM, Ahmed Shabana [EMAIL PROTECTED]
wrote:
#includestdio.h
#includestring.h
struct sub {
char name[100];
};
struct maiN {
struct sub *s1;
int c;
};
sub *s1 is a pointer inside maiN
Do you need to use a pointer in the maiN structure? If you don't, your
program becomes simpler:
#include stdio.h
#include string.h
struct sub {
char name[100];
};
struct maiN {
struct sub s1;
int c;
};
int main(void)
{
struct maiN s0;
s0.c = 42;
strcpy(s0.s1.name,hi
On Sun, Nov 23, 2008 at 12:30 PM, John Matthews [EMAIL PROTECTED] wrote:
--- In c-prog@yahoogroups.com, John Matthews [EMAIL PROTECTED] wrote:
--- In c-prog@yahoogroups.com, Ahmed Shabana UnlimitedEng@ wrote:
okay what is the solution of this problem ???/
HOW can I assign the variable
--- In c-prog@yahoogroups.com, John Matthews [EMAIL PROTECTED] wrote:
--- In c-prog@yahoogroups.com, Ahmed Shabana UnlimitedEng@ wrote:
okay what is the solution of this problem ???/
HOW can I assign the variable which called name
Example:
int main()
{
struct sub sub0;
John wrote:
You haven't initialised s0, so s1 could be pointing
anywhere.
But my money would be on it having the value zero. I.e. an
uninitialised pointer is a null pointer. I don't know if
this is in the standard, but it would be a sensible thing
for a compiler to do, as null pointer
1rst Thanks too much to John Matthews this two solution add to me
good background about what is the problem was
Or get rid of the problem altogether so you don't have to 'remember'
to do anything, and change the containing struct:
struct maiN {
struct sub s1; /* changed from pointer to the
One other minor point: you can use typedef to save some typing:
typedef struct sub { /* remove sub if you want */
:
} Sub;
typedef struct maiN { /* remove maiN if you want */
:
} MaiN;
int main(void)
{
Sub sub0; /* no need for struct */
MaiN s0; /* no need for struct */
John
John Matthews wrote:
--- In c-prog@yahoogroups.com, Pedro Izecksohn [EMAIL PROTECTED] wrote:
OK, I wrote a bad piece of code. Let me try to codify my problem again:
#include limits.h
#include stdio.h
int main (void) {
unsigned short int a;
unsigned long long int b, c;
a = USHRT_MAX;
b =
--- In c-prog@yahoogroups.com, Thomas Hruska [EMAIL PROTECTED] wrote:
BTW, you should have your compiler warnings turned up so that you get a
warning for assigning a signed value to an unsigned variable.
Thomas- is this easy in Microsoft world? And anyone know the gcc
equivalent? Gcc's -Wall
On Sun, Nov 23, 2008 at 2:57 PM, John Matthews [EMAIL PROTECTED] wrote:
--- In c-prog@yahoogroups.com, Thomas Hruska [EMAIL PROTECTED] wrote:
BTW, you should have your compiler warnings turned up so that you get a
warning for assigning a signed value to an unsigned variable.
Thomas- is this
--- In c-prog@yahoogroups.com, Paul Herring [EMAIL PROTECTED] wrote:
On Sun, Nov 23, 2008 at 2:57 PM, John Matthews [EMAIL PROTECTED] wrote:
--- In c-prog@yahoogroups.com, Thomas Hruska thruska@ wrote:
BTW, you should have your compiler warnings turned up so that you
get a
warning for
--- In c-prog@yahoogroups.com, Thomas Hruska [EMAIL PROTECTED] wrote:
b = (UInt64)(((UInt32)a) * ((UInt32)a));
Would this be even safer:
b = (UInt64)a * (UInt64)a;
?
On Sun 2008-11-23 14:57:38 UTC-, John Matthews ([EMAIL PROTECTED]) wrote:
BTW, you should have your compiler warnings turned up so that you get a
warning for assigning a signed value to an unsigned variable.
Thomas- is this easy in Microsoft world? And anyone know the gcc
equivalent?
--- Thomas Hruska wrote:
BTW, you should have your compiler warnings turned up
so that you get a warning
for assigning a signed value to an unsigned variable.
--- John Matthews asked:
And anyone know the gcc equivalent?
Gcc's -Wall 'all warnings' option doesn't include it.
--- andrew
John Matthews wrote:
--- In c-prog@yahoogroups.com, Thomas Hruska [EMAIL PROTECTED] wrote:
b = (UInt64)(((UInt32)a) * ((UInt32)a));
Would this be even safer:
b = (UInt64)a * (UInt64)a;
?
That would do something different. It really depends on what exactly
you want to do. I'd still
Hi
I have text file in this pattern
Jila Tim 45 45 67 5 67 45 3 5 67 89 19823456
Eva Clarare 42 1 8 43 52 76 1 8 90 43 19345678
-
-
-
-
-
Kim Jomte 4 5 75 24 52 52 35 35 36 35 19745432
I want to get name of each player and total higest score palyer. the last eight
digits are not required.
Hi,
Im curious is it usual to make an util class to contain methods that are going
to be used frequently generally? is there any proper format for this class? im
planning to make a util.cpp file with some methods, and include the cpp file in
every classes. but i wonder since i havent seen an
Hello list,
I'm used to c++ where I can just use a simple stringstream and print the
number to the stream.
Unfortunately for me, I'm using c now, and need to be able to print a number
in a string.
Basically, I'm writing a time conversion util; it takes the number of
seconds and converts them to
On Sun, Nov 23, 2008 at 7:51 PM, Tyler Littlefield [EMAIL PROTECTED] wrote:
I'm used to c++ where I can just use a simple stringstream and print the
number to the stream.
Unfortunately for me, I'm using c now, and need to be able to print a number
in a string.
Basically, I'm writing a time
thanks. looks like what I needed, though sprintf might serve a better purpose.
Thanks,
Tyler Littlefield
email: [EMAIL PROTECTED]
web: tysdomain-com
Visit for quality software and web design.
skype: st8amnd2005
- Original Message -
From: Brett McCoy
To: c-prog@yahoogroups.com
--- Jos Timanta Tarigan wrote:
im
planning to make a util.cpp file with some methods, and include the cpp file
in
every classes. but i wonder since i havent seen an included .cpp files(all
included are header files)
You should not include .cpp files in other .cpp files, but you should
--- Mirza Abdullah Jan wrote:
Hi
I have text file in this pattern
Jila Tim 45 45 67 5 67 45 3 5 67 89 19823456
Eva Clarare 42 1 8 43 52 76 1 8 90 43 19345678
-
-
Kim Jomte 4 5 75 24 52 52 35 35 36 35 19745432
I want to get name of each player and total higest score palyer. the
Tyler Littlefield [EMAIL PROTECTED] wrote:
hello,
If you multiply two unsigned shorts together, you'll
get an unsigned short,
No, you won't.
If the range of unsigned short fits into an int, the
two unsigned short values will be promoted to int. The
multiplication will be performed with ints,
Pedro Izecksohn [EMAIL PROTECTED] wrote:
If The integer promotions preserve value including sign.
There are several 'promotion' rules at play in C (and C++.)
For integers with a 'rank' less than int, if the range of
the integer type fits into the range of int, then that
type will promote to
For peternilsson42:
I was not clear and you did not read message 68798.
http://tech.groups.yahoo.com/group/c-prog/message/68798
To clarify:
That code I compiled on two independent compilers. On both compilers:
USHRT_MAX is 0x
UINT_MAX is 0x
ULLONG_MAX is 0x
For
Pedro Izecksohn [EMAIL PROTECTED] wrote:
For peternilsson42:
I was not clear and you did not read message 68798.
http://tech.groups.yahoo.com/group/c-prog/message/68798
That post contained detail missing from your original post.
However, it did not contain detail which explained why you
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