[algogeeks] urgent C o/p
#includestdio.h
int main()
{
float a=3.2;
printf(%d\n\n,a);//line 1
printf(%d,*(int *)a); //line 2
}
o/p(gcc comppiler) = -1610612736
1078774989
i am not getting why and how these /p r coming .
what is difference between line 1 and line 2?
reply asap
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Re: [algogeeks] urgent C o/p
u r printing a floating point number using %d format specifier.
dnt assume that while printing a float using %d , the compiler will chop the
digits after decimal places.. its not so.. the result will be undefined..
On Mon, Sep 5, 2011 at 1:36 PM, Aman Kumar amanas...@gmail.com wrote:
#includestdio.h
int main()
{
float a=3.2;
printf(%d\n\n,a);//line 1
printf(%d,*(int *)a); //line 2
}
o/p(gcc comppiler) = -1610612736
1078774989
i am not getting why and how these /p r coming .
what is difference between line 1 and line 2?
reply asap
--
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Re: [algogeeks] urgent C o/p
got to do with the internal representation of various types. i think. For
eg, float is composed of a mantissa, exponent etc. So if u try to print a
floating point as an int, you'll get unpredictable outputs.
On Mon, Sep 5, 2011 at 1:36 PM, Aman Kumar amanas...@gmail.com wrote:
#includestdio.h
int main()
{
float a=3.2;
printf(%d\n\n,a);//line 1
printf(%d,*(int *)a); //line 2
}
o/p(gcc comppiler) = -1610612736
1078774989
i am not getting why and how these /p r coming .
what is difference between line 1 and line 2?
reply asap
--
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Regards,
Shachindra A C
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Re: [algogeeks] urgent C o/p
result is undefined.floating points are represented using IEEE ormat which
is not same as ints.so it will truncate fractional part and print result
.result is nt defined
On Mon, Sep 5, 2011 at 1:41 PM, SANDEEP CHUGH sandeep.aa...@gmail.comwrote:
u r printing a floating point number using %d format specifier.
dnt assume that while printing a float using %d , the compiler will chop
the digits after decimal places.. its not so.. the result will be
undefined..
On Mon, Seot definep 5, 2011 at 1:36 PM, Aman Kumar
amanas...@gmail.comwrote:
#includestdio.h
int main()
{
float a=3.2;
printf(%d\n\n,a);//line 1
printf(%d,*(int *)a); //line 2
}
o/p(gcc comppiler) = -1610612736
1078774989
i am not getting why and how these /p r coming .
what is difference between line 1 and line 2?
reply asap
--
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