Answer Posted / ravi.jnv

Volatile is to inform the compiler that not to optimise
code.
for ex:
int a = port1;
int b = port1;
int c = port1;

compiler may convert it as
int a=b=c=port1;

so avoid it , u have to use volatile keyword.

What is the purpose of clrscr () printf () and getch ()?

1060

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What is the difference between c and python?

1155

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If jack lies on Mon, Tue Wed and jill lies on Thursday, Friday and Saturday. If both together tell they lied yesterday. So c the given options and then c cos in the given dates one will be saying the truth and one will be lying. I got Thursday as option because jack is saying the truth he lied yest but jill is lying again as he lies on that day.

2260

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Write the syntax and purpose of a switch statement in C.

1089

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Is null always equal to 0(zero)?

1024

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What will the preprocessor do for a program?

1058

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Why structure is used in c?

1175

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What is the difference between #include and #include 'file' ?

1039

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What is masking?

1136

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write a c programming using command line argument,demonstrate set operation(eg;union,intersection,difference) example output is c:>setop 12 34 45 1 union 34 42 66 c:>setop 12 34 1 42 66 c:>setop 12 34 diff 12 56 67 78 setop 12 34

2161

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what is recursion in C

1056

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Describe the header file and its usage in c programming?

1048

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A banker has a seif with a cipher. Not to forget the cipher, he wants to write it coded as following: each digit to be replaced with the difference of 9 with the current digit. The banker chose a cipher. Decipher it knowing the cipher starts with a digit different than 9. I need to write a program that takes the cipher from the keyboard and prints the new cipher. I thought of the following: Take the input from the keyboard and put it into a string or an array. Go through the object with a for and for each digit other than the first, substract it from 9 and add it to another variable. Print the new variable. Theoretically I thought of it but I don't know much C. Could you give me any kind of hint, whether I am on the right track or not?

2033

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What is static memory allocation? Explain

1083

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What is volatile, register definition in C

1090

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