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Question
Comment on the output of this C code?
int main()
{
float f1 = 0.1;
if (f1 == 0.1)
printf("equal\n");
else
printf("not equal\n");
}
Options:
A .  equal
B .  not equal
C .  Output depends on compiler
D .  None of the mentioned
Answer: Option B


0.1 by default is of type double which has different representation than float resulting in inequality even after conversion.
Output:
$ cc pgm4.c
$ a.out
not equal



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