C Aptitude 23
C program is one of most popular programming language which is used for core level of coding across the board. C program is used for operating systems, embedded systems, system engineering, word processors,hard ware drivers, etc.
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The C aptitude questions and answers for those questions along with explanation for the interview related queries.
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Read more about C Programming Language . and read the C Programming Language (2nd Edition). by K and R.
Predict the output or error(s) for the following:
C aptitude 23.1
res= 56>76 ? return 0:return 1;
Answer: Compilation error.
Explanation: We cannot use return keyword in conditional operator.
C aptitude 23.2
Note: here input for command line argument is, example 5 4 7 8
/* example.c */
int main(int argc, char *argv)
j = argv + argv + argv + argv;
Explanation: Command line arguments are string types, we can’t add or do the arithmetic operations on string types in C, we have to convert the argv to the integer types using atoi function.
C aptitude 23.3
int num1 = 123;
float num2 = 123.0;
if(num1 == num2)
printf("num1 and num2 are equal");
printf("num1 and num2 are not equal");
Answer: num1 and num2 are equal
Explanation: This is the tricky question, in if statement we are comparing 123=123.0, condition satisfied, so the result is num1 and num2 are equal.
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