dev-cpp-users Mailing List for Dev-C++

Hello all Dev-cpp-users,

  is there a way to force treting , in numbers as . ?? In Poland there is a
strange habit of writing numbers this way:
number,fraction   13,75
no usual:
number.fraction 13.75

using ifstream extraction loses fraction value... there is way to read line,
and replace each , with . then use istringstream on in and at last use
normal extraction... lot of work - maybe there is other simplier way??

-- 
regards Zodiaq

void readS(db1 *a)
{ 

  printf("name:");
  scanf("%s",a->name);
  printf("age:");
  scanf("%d",a->i);
  printf("%d",a->i);//to check
}


While scanning the integer value you should do:   scanf("%d",&(a->i)); this
should work.

-----Original Message-----
From: vasanthsena x [mailto:vas...@ya...]
Sent: Monday, November 03, 2003 1:46 PM
To: Dev...@li...
Subject: [Dev-C++] another annoying question


Sorry guys its been a long day.In the following
program instead of giving me the value of i, it prints
the adress of i. any thoughts why :( ?

 #include <stdio.h>




typedef struct db {
  char name[10];
  int i;
  } db1;
void readS(db1 *a);
void writeS(db1 *a);
  
main()
{

db1 mydb[20];
db1 *p;
p = mydb;

printf("Enter Data\n");
 
  readS(p);
  writeS(p);
  system("PAUSE");
  return 0;
  
}

void readS(db1 *a)
{ 

  printf("name:");
  scanf("%s",a->name);
  printf("age:");
  scanf("%d",a->i);
  printf("%d",a->i);//to check
}

void writeS(db1 *a)
{
  
  printf("%s,%d\n",a->name,a->i);

}


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Sorry guys its been a long day.In the following
program instead of giving me the value of i, it prints
the adress of i. any thoughts why :( ?

 #include <stdio.h>




typedef struct db {
  char name[10];
  int i;
  } db1;
void readS(db1 *a);
void writeS(db1 *a);
  
main()
{

db1 mydb[20];
db1 *p;
p = mydb;

printf("Enter Data\n");
 
  readS(p);
  writeS(p);
  system("PAUSE");
  return 0;
  
}

void readS(db1 *a)
{ 

  printf("name:");
  scanf("%s",a->name);
  printf("age:");
  scanf("%d",a->i);
  printf("%d",a->i);//to check
}

void writeS(db1 *a)
{
  
  printf("%s,%d\n",a->name,a->i);

}


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Hello vasanthsena and all Dev-C++ users,

Monday, November 3, 2003, 10:17:01 PM, vasanthsena wrote as follows:

vx> Oops I forgot to mention that I am programming in C.

Huh, and what about it?? In C you can create dynamic objects from
structures... these are without methods and contructor/destructor, but
fields are still accessed using . or -> regarding how you created these
instances...
Struct_name q;
q.field_a = 13;

Struct_name *q = malloc( sizeof( Struct_name ));
q->field_a = 13
free( q );

still - go get good book about C and READ IT!
-- 
regards, Zodiaq

pull out your textbook/tutorial and read about structures and pointers
to structures

reid


> -----Original Message-----
> From: vasanthsena x [mailto:vas...@ya...]=20
> Sent: Monday, November 03, 2003 3:13 PM
> To: dev...@li...
> Subject: [Dev-C++] Question "." vs "->"
>=20
>=20
> Hi I have written a program where I want to access a
> structure member.when I use "->" it gives me an error
> which says invalid type of argument."." on the other
> hand works just fine. Any thoughts on why this could
> happen.
>=20
> S.
>=20
> __________________________________
> Do you Yahoo!?
> Exclusive Video Premiere - Britney Spears=20
> http://launch.yahoo.com/promos/britn> eyspears/
>=20
>=20
>=20
>=20
> -------------------------------------------------------
> This SF.net email is sponsored by: SF.net Giveback Program.=20
> Does SourceForge.net help you be more productive?  Does it
> help you create better code?   SHARE THE LOVE, and help us help
> YOU!  Click Here: http://sourceforge.net/donate/=20
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
> TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
> https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
>=20

Hello vasanthsena and all Dev-C++ users,

Monday, November 3, 2003, 9:13:09 PM, vasanthsena wrote as follows:

vx> Hi I have written a program where I want to access a
vx> structure member.when I use "->" it gives me an error
vx> which says invalid type of argument."." on the other
vx> hand works just fine. Any thoughts on why this could
vx> happen.

Huh, problems with major C++ features we have??? So remember this till end
of your life:
- use . for references to objects created normally ( Class_name object) and
for object passed by reference or value:
void function( Class_name object )//pass by value, copy object created
{
  object.value = 13;

void function( const Class_name &object ) //pass by reference
{
  if( object.value == 3 )

use -> for object created on stack using operator new or passed using
pointer:

//example of passing object using pointer
Class_name object;
function( &object );

//function body
void function( Class_name *object )
{
  object->value = 11;

//creating object on stack
Class_name *object = new Class_name( 7 );
if( object->value == 6 )
  ...

btw. get a good book and start learning C++ from the begining - these are
fundamental features of C++
  
-- 
regards, Zodiaq

Hi I have written a program where I want to access a
structure member.when I use "->" it gives me an error
which says invalid type of argument."." on the other
hand works just fine. Any thoughts on why this could
happen.

S.

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