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Write your own function stringSize which takes a string s as a parameter and returns its length.
Example:
stringSize(“hello”) returns 5 -
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Find the output of the following programmain(){int x=5, *p;p=&x;printf("%d",++*p);}a.5b.6c.0d.none
B
rizwann
- Jan 28th, 2012
This ques tests your knowledge of operator precedence and associativity
* and ++ operator have same precedence and their associativity is right to left.
That is why first (*p) is evaluated which results 5 then (++*p) i.e. (++5) is evaluated which gives us 6Meena Goel
- Sep 12th, 2007
The answer for this question is 6. in starting the value of x is 5 that will be incremented by pointer p.
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C code explanation
struct marks
{
int p:3;
int c:3;
int m:2;
};
void main()
{
struct marks s={2,-6,5};
printf("%d%d%d",s.p,s.c,s.m);
} -
Short int and int
What is the difference between short int and int?
jbode
- Feb 11th, 2012
The general idea is that short "always" represents a 16-bit integer, whereas int represents whatever the native word size is for that particular architecture (16- or 32-bit). "Always" is in scare quo...
sumit
- Feb 6th, 2012
Sorry to say that actually in most of C compiler short int is also of 16 bit and they are equivalent to each other.
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Write function vowels to count the vowels and letters
Write function vowels to count the vowels and letters in free text given as string. Then print out the number of occurrences of each of the vowels a, e, i, o and u in the string, the total number of letters, and each of the vowels as an integer percentage of the letter total.
Suggested output format is:
Numbers of characters:
a 3 ; e 2 ; i 0 ; o 1 ; u 0 ; rest 17Lokesh M
- Feb 14th, 2012
I would suggest you make use of string.find() and string.substring() methods, make use of loops and counter variables to achieve the objective.
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Tiny, large, huge memory models
I need the above said memory types explanation.
Please tell me any one.Lokesh M
- Feb 14th, 2012
There are six types of memory models. 1. TINY Memory Model: Used when code under 64KB is and data is under 64KB 2. SMALL Memory Model: Used when code under 64KB is and data is under 64KB 3. MEDIUM Me...
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Nested if statement
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C Pointer Size
If p is declared as char *p then what is size of(*P)?
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C Program Execution Stages
Briefly explain the stages in execution of C program? How are printf and scanf statements statements being moved into final executable code?
Sandhya.Kishan
- Mar 8th, 2012
The stages of execution are:
* Making and Editing
* Saving
* Compiling
* Linking
* Loading
* Running
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Invoke Another Program
How will you invoke another program from within a C program?
Sandhya.Kishan
- Mar 8th, 2012
We can invoke another program by using function like system() call like system(test.exe).
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File Compression
How can we compress any text file using c. can anybody provide me sample code
Sandhya.Kishan
- Mar 8th, 2012
The function comp() can be used for compression.The compression logic for comp() should provide the fact that ASCII only uses the bottom (least significant) seven bits of an 8-bit byte. The compressio...
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What is unabridged list?
Sandhya.Kishan
- Mar 8th, 2012
An unabridged list is an information which is not reduced in length by condensing.
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Function Call
How will you call a function, given its name as a string?
Sandhya.Kishan
- Mar 15th, 2012
We cannot call a function whose name is a string, we have to construct a table of two-field structures, where the first field is the function name as a string, and the second field is just the functi...
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In OOPS do curent memory locators provide enough speed or flexibility?
Sandhya.Kishan
- Mar 15th, 2012
OOPs memory locators provide enough flexibility as it is frindly to the programmer,rather we can say objects talking to each other and maintaining their relationship.
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Open Files Simultaneously
How will you increase the allowable number of simultaneously open files?
Sandhya.Kishan
- Mar 15th, 2012
Instant File Opener allows to create a list of multiple files, programs, folders, and URLs to be opened at the same time by opening a single special file or by logging into Windows. Files are opened ...
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Write a program to identify a duplicate value in vector ?
Sandhya.Kishan
- Mar 20th, 2012
"c void rmdup(int *array, int length) { int *current, *end = array + length - 1; for (current = array + 1; array < end; array++, current = array + 1) { while (current < ...
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What Ithe difference between a end of line and EOF while giving the inputs during run time?
pawandeep
- Mar 24th, 2012
End of file is a function which returns zero value at end of file... EOF is a deliminator
baseersd
- Nov 19th, 2007
End of Line refers to the 'n'( new line character). It will perform operations till it come across 'n'. EOF refers to End of File. It is the last character in the file.(if it is not empty). If the file is empty then only EOF will be present.Some compilers give its value as -1.
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Is it better to use malloc() or calloc()?
Both the malloc() and the calloc() functions are used to allocate dynamic memory. Each operates slightly different from the other. malloc() takes a size and returns a pointer to a chunk of memory at least that big: void *malloc( size_t size ); calloc() takes a number of elements, and the size of each, and returns a pointer to a chunk of memory at least big enough to hold them all: void *calloc(...
Sandhya.Kishan
- Mar 28th, 2012
Malloc() and calloc() are used to allocate memory blocks dynamically.malloc() is a bit faster since it does not initialize the allocated memory blocks to as it is done by calloc() function.Hence it is better to use malloc() then calloc().
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What is indirection?
If you declare a variable, its name is a direct reference to its value. If you have a pointer to a variable, or any other object in memory, you have an indirect reference to its value.
Sandhya.Kishan
- Mar 28th, 2012
Indirection operator (denoted by *) is a unary operator which include pointer variables. It operates on a pointer variable,and returns a value equivalent to the value at the pointer address. Example:...
C Interview Questions
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