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sscanf and struct...

Posted on 1998-09-23
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Last Modified: 2008-03-17
Hi there I've got a problem with a C-programm which uses sscanf to fill a struct with several data.

struct type{char string; double dvar1;} name;
char buffer[82]; double local;
...
main(){
for(loop=0;loop <5;++loop){
...  
gets(buffer);
sscanf(buffer,"%s",&name[loop].string);// works fine
gets(buffer);
sscanf(buffer,"%lf",&name[loop].dvar1);// does not work; error message: floating point formats not linked
//if I use:
gets(buffer);
sscanf(buffer,"%lf",&local);
name[loop].dvar1)=local; //it works fine

can you give me a hint, what I do wrong.( By the way using BC for DOS).
thanx
greetings x-rai
0
Comment
Question by:x_rai
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7 Comments
 
LVL 3

Expert Comment

by:danny_pav
ID: 1252983
is that a compiler error or runtime error?
0
 

Author Comment

by:x_rai
ID: 1252984
It 's a runtime error... followed by the comment abnormal termination.
:(

0
 
LVL 3

Expert Comment

by:plaroche
ID: 1252985
How can you use:

name[loop]

when you haven't allocated more than one slot for that structure?
0
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Author Comment

by:x_rai
ID: 1252986
It 's a runtime error... followed by the comment abnormal termination.
:(

0
 

Author Comment

by:x_rai
ID: 1252987
>How can you use:
>
>      name[loop]
>
>       when you haven't allocated more than one slot for that structure?
sorry -typed it by head, in the programm it is of course
struct type{char string; double dvar1;} name[5];

But thats not the point
0
 
LVL 3

Accepted Solution

by:
zhongbing earned 200 total points
ID: 1252988
hi.
struct type{char string; double dvar1;} name[5];
should be
..........char string[xxxx];.......
cause you refered it like a string not a single char.
0
 

Author Comment

by:x_rai
ID: 1252989
Hi,
this is a rigth invention, but not the solution to the problem.
Infact I found out that it is a compiler error, from Borland, where the compiler optimizes the executable file as small as possible.
This is solved by inserting
extern void _floatconvert();
#pragma extref _floatconvert()
into the source.
found in the technical information of borland, (with help of Hans-Bernhard Broeker) located at:
http://www.inprise.com/devsupport/borlandcpp/ti/TI645.html
thanks for your help
cheers rai

0

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