Re: [algogeeks] C Error
actually ?: operation have more precedence then = so it evaluate first ,to 10 in next pass it become 10=10 ; which is illegal cause of (=) operator required a variable left side but is present hence error cause lvalue required . -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
[algogeeks] C Error
Hey all,
I think I am missing something very basic in C, and which is troubling
me. Following code is not compiling for me, can anyone explain why?
vishal@ubuntu:~/progs/c\ 09:07:01 AM $ cat ternary.c
#include stdio.h
#include stdlib.h
int main(int argc, char *argv[])
{
int x = atoi(argv[1]);
int y = 10;
(x 10) ? y++: x = 10;
return x;
}
vishal@ubuntu:~/progs/c\ 09:07:08 AM $ gcc ternary.c
ternary.c: In function ‘main’:
ternary.c:7: error: lvalue required as left operand of assignment
Vishal
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Re: [algogeeks] C Error
Try this:
#include stdio.h
#include stdlib.h
int main(int argc, char *argv[])
{
int x = atoi(argv[1]);
int y = 10;
x = (x 10) ? y++: 10;
return x;
}
Wladimir Araujo Tavares
*Federal University of Ceará
*
On Fri, Jun 24, 2011 at 12:40 AM, Vishal Thanki vishaltha...@gmail.comwrote:
Hey all,
I think I am missing something very basic in C, and which is troubling
me. Following code is not compiling for me, can anyone explain why?
vishal@ubuntu:~/progs/c\ 09:07:01 AM $ cat ternary.c
#include stdio.h
#include stdlib.h
int main(int argc, char *argv[])
{
int x = atoi(argv[1]);
int y = 10;
(x 10) ? y++: x = 10;
return x;
}
vishal@ubuntu:~/progs/c\ 09:07:08 AM $ gcc ternary.c
ternary.c: In function ‘main’:
ternary.c:7: error: lvalue required as left operand of assignment
Vishal
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Re: [algogeeks] C Error
yes, i understand that.. but is there any limitation in ternary
operator that the 2nd expression (after :)should not use assignment
operator?
On Fri, Jun 24, 2011 at 9:21 AM, Wladimir Tavares wladimir...@gmail.com wrote:
Try this:
#include stdio.h
#include stdlib.h
int main(int argc, char *argv[])
{
int x = atoi(argv[1]);
int y = 10;
x = (x 10) ? y++: 10;
return x;
}
Wladimir Araujo Tavares
Federal University of Ceará
On Fri, Jun 24, 2011 at 12:40 AM, Vishal Thanki vishaltha...@gmail.com
wrote:
Hey all,
I think I am missing something very basic in C, and which is troubling
me. Following code is not compiling for me, can anyone explain why?
vishal@ubuntu:~/progs/c\ 09:07:01 AM $ cat ternary.c
#include stdio.h
#include stdlib.h
int main(int argc, char *argv[])
{
int x = atoi(argv[1]);
int y = 10;
(x 10) ? y++: x = 10;
return x;
}
vishal@ubuntu:~/progs/c\ 09:07:08 AM $ gcc ternary.c
ternary.c: In function ‘main’:
ternary.c:7: error: lvalue required as left operand of assignment
Vishal
--
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Re: [algogeeks] C Error
Okay, I found the problem i think,
(x 10) ? y++: x = 10 is evaluated as ((x 10) ? y++: x) = 10
which is wrong..
(x 10) ? y++: (x = 10) will work.
On Fri, Jun 24, 2011 at 9:22 AM, Vishal Thanki vishaltha...@gmail.com wrote:
yes, i understand that.. but is there any limitation in ternary
operator that the 2nd expression (after :)should not use assignment
operator?
On Fri, Jun 24, 2011 at 9:21 AM, Wladimir Tavares wladimir...@gmail.com
wrote:
Try this:
#include stdio.h
#include stdlib.h
int main(int argc, char *argv[])
{
int x = atoi(argv[1]);
int y = 10;
x = (x 10) ? y++: 10;
return x;
}
Wladimir Araujo Tavares
Federal University of Ceará
On Fri, Jun 24, 2011 at 12:40 AM, Vishal Thanki vishaltha...@gmail.com
wrote:
Hey all,
I think I am missing something very basic in C, and which is troubling
me. Following code is not compiling for me, can anyone explain why?
vishal@ubuntu:~/progs/c\ 09:07:01 AM $ cat ternary.c
#include stdio.h
#include stdlib.h
int main(int argc, char *argv[])
{
int x = atoi(argv[1]);
int y = 10;
(x 10) ? y++: x = 10;
return x;
}
vishal@ubuntu:~/progs/c\ 09:07:08 AM $ gcc ternary.c
ternary.c: In function ‘main’:
ternary.c:7: error: lvalue required as left operand of assignment
Vishal
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Re: [algogeeks] C Error
I was reading in somewhere the ternary operator is *right associative*
Wladimir Araujo Tavares
*Federal University of Ceará
*
On Fri, Jun 24, 2011 at 1:13 AM, Vishal Thanki vishaltha...@gmail.comwrote:
Okay, I found the problem i think,
(x 10) ? y++: x = 10 is evaluated as ((x 10) ? y++: x) = 10
which is wrong..
(x 10) ? y++: (x = 10) will work.
On Fri, Jun 24, 2011 at 9:22 AM, Vishal Thanki vishaltha...@gmail.com
wrote:
yes, i understand that.. but is there any limitation in ternary
operator that the 2nd expression (after :)should not use assignment
operator?
On Fri, Jun 24, 2011 at 9:21 AM, Wladimir Tavares wladimir...@gmail.com
wrote:
Try this:
#include stdio.h
#include stdlib.h
int main(int argc, char *argv[])
{
int x = atoi(argv[1]);
int y = 10;
x = (x 10) ? y++: 10;
return x;
}
Wladimir Araujo Tavares
Federal University of Ceará
On Fri, Jun 24, 2011 at 12:40 AM, Vishal Thanki vishaltha...@gmail.com
wrote:
Hey all,
I think I am missing something very basic in C, and which is troubling
me. Following code is not compiling for me, can anyone explain why?
vishal@ubuntu:~/progs/c\ 09:07:01 AM $ cat ternary.c
#include stdio.h
#include stdlib.h
int main(int argc, char *argv[])
{
int x = atoi(argv[1]);
int y = 10;
(x 10) ? y++: x = 10;
return x;
}
vishal@ubuntu:~/progs/c\ 09:07:08 AM $ gcc ternary.c
ternary.c: In function ‘main’:
ternary.c:7: error: lvalue required as left operand of assignment
Vishal
--
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