 |
|
|
||||
Find us on FacebookFollow us on Google+
|
1.
What will the function randomize() do in Turbo C under DOS?
Answer & Solution
Answer: (C) returns a random number generator with a random value based on time.
Solution: The randomize() function initializes the random number generator with a random value based on time. You can try the sample program given below in Turbo-C, it may not work as expected in other compilers. /* Prints a random number in the range 0 to 99 */ #include #include #include int main(void) { randomize(); printf("Random number in the 0-99 range: %d\n", random (100)); return 0; } 
2.
Does there any function exist to convert the int or float to a string?
Answer & Solution
Answer: (A) Yes
Solution: 1. itoa() converts an integer to a string. 2. ltoa() converts a long to a string. 3. ultoa() converts an unsigned long to a string. 4. sprintf() sends formatted output to a string, so it can be used to convert any type of values to string type.
3.
What is the purpose of fflush() function.
Answer & Solution
Answer: (A) flushes all streams and specified streams.
Solution: "fflush()" flush any buffered output associated with filename, which is either a file opened for writing or a shell command for redirecting output to a pipe or coprocess. Example: fflush(FilePointer); fflush(NULL); flushes all streams.
4.
What will the function rewind() do?
Answer & Solution
Answer: (D) Reposition the file pointer to begining of file.
Solution: rewind() takes the file pointer to the beginning of the file. so that the next I/O operation will take place at the beginning of the file. Example: rewind(FilePointer);
5.
Input/output function prototypes and macros are defined in which header file?
Answer & Solution
Answer: (C) stdio.h
Solution: stdio.h, which stands for "standard input/output header", is the header in the C standard library that contains macro definitions, constants, and declarations of functions and types used for various standard input and output operations.
|
|||