The most natural place for structures without tags is typedef declaration (it's the only place I've used anonymous structs ;)):

typedef struct
{
...
} Record;
...
Record rec;
Record*...

>...if you want to be a pedant...
To make distinctions between static, automatic and dynamic attributes - is it too pedantic for you?
;)

In C you can assign void* type pointer value to the pointer of any type without casting. So simply declare a proper type pointer and set it to the buffer:

char* pchar = buf_ptr;
char* ptr = pchar...

>short answer: static arrays are allocated when the function is called...
Short remark: static arrays are allocated before the first call of the function. However no static arrays in OP snippet....

The new-line character is defined in C, it's '\n'. The fgets standard library function retains a single new-line character from text mode streams only, but...
be careful:

>Well I had seen it being limited in some early versions of cc gcc and all.
It was not the C language limit, it's a limit of the compiler (implementation),
>...Or atleast the method...
Generate a...

A user-defined main() is not the first (and the only) function in the executable module. Have you ever heard about sturtup code? A console mode program has opened i/o streams - it's a job for startup...

>Isn't 16 *'s maximum in C ???
I have never seen maximal values of translation limits were defined in C docs.

>More random calls will tend to dilate the variance.
The variance of... what? We didn't estimate random sequence parameters in that case so the variance (or other moments) does not bear a relation...

A day ago csurfer's algorithm solved the problem. That's "pipelined" version:

int i, j = rand()%20;
for (i = 0; i < 20; i++)
array[i] = (i != j)*(rand()%9 + 1);

In addition:...

That's it:

(256 in C++)

Why strncat? Make a single (expected) string by a single snprintf call. What's a problem?

All except '\r' and (may be) quotes ;)

Do you really want to study C i/o basics on DaniWeb forum?
Better search for a good C i/o tutorial. There are lots of good links...

The second argument type is a pointer to a pointer to FILE type.
Didn't you understand what's a pointer?
Evidently this function returns FILE* pointer via this argument. What's a strange...

absread:
What's it: ancient TC non-standard function to read a sector from the HD in native DOS environment.
Usage: forget as soon as possible.

Use fseek and ftell functions from <stdio.h>.

Excuse me, siddhant3s: I have not seen your post above! :(
No need in my post now.

According to the C and C++ standards

int array[....];

array[-2] - wrong expression, because array-2 points to inexisting array element (the only exception: pointer to the 1st element after...

Now read why fflush(stdin) is wrong:
http://faq.cprogramming.com/cgi-bin/smartfaq.cgi?answer=1052863818&id=1043284351
and how to flush the input buffer in C:...

>So, if you want to really use pointers pass all the pointers from the main function into the corresponding function.
It's too restrictive and unrealistic requirement.

>Even the pointer which you...

>If i use float instead of double, i get the answer 25.628401 (which is wrong...
1. It's the same question as Why Cessna 182 can't be so fast as F-22?: float data type has precision ~6-7 decimal...

No opened stdin and stdout streams in Win GDI applications (null pointers). You can't use scanf and printf functions in the program.
See, for example:...

Of course, it's possible (under your program "manual" contol). Open file in binary mode. Use fread and fwrite function. See fseek library function to set current write position and ftell to get it.

It seems you don't verify your list interface.
For example:
1. What's a role of the 1st insert_start parameter? You overwrite its value in the 1st statement of the function body then create new...

More precisely: if the program attempts to modify an array corresponding to a string literal, the behavior is undefined.

Can you put more specific question? How to...
- print a file to the same console window in parallel
- print a file to a new (console) window
- open then print a file from your (console) program...

Can you explain what is it: binary search tree sorted with quicksort method???

Well, let f(i) is i-th member without sign (it's not C).

f(i) = i/i! = i/(1*2*...*(i-1)*i) =
i/(i*(1*2...*(i-1)) = 1/(i-1)!
f(i+1) = 1/i! = 1/((i-1)!*i) = f(i)/i
i = 1, 2,... (0! = 1 by...

See: you have fac > no for all no values because fac = n!. Therefore no/fac == 0 (integer division) and com=com+j is the same as com += 0...

1. Use double type for math calculations (not float)....

>c is generally slow compared to other programming language.
>Just out of curiosity, what languages should be faster?
Assembler, fortran?
Look at these wonderful benchmarks:...

Ooh, yet another grade supersystem...

Better try to search DaniWeb for grade. There are lots of dozens of grade calculation threads (solved;))...

Good programmers are capable to write more effective programs practically in any programming languages than bad programmers can do it in machine codes ;)

Better try to check it with your compiler.
Create test scenario(s): what to do - desired results. Write test driver, compile then run it. Compare results - and so on...

From the C Standard:

None the less look at the link mentioned above.

1. calloc, malloc, realloc et al: http://irc.essex.ac.uk/www.iota-six.co.uk/c/f7_dynamic_memory_allocation.asp (or lots of another tutorials on this topic).

2. (type)expression called cast. It...

>still i am not able to understand how we can store the next node address in the current node.
Please, read my previous post again. And again. And again...
Nobody can store the next node address in...

1. You may get 26-th character of readLine as readLine[26] - why sscanf(readLine+26...)?
2. Check input line length: may be no 26-th character in the line...
3. Why 'b' in +26 position corresponds...

Of course, you have linker error because nobody (except you) knows such library function as concat (probably you want strcat).

The second attempt failed because fgets function puts the last '\n'...

>Or do you know the 'ultimate' way?
Why not?

char* condense(char* s)
{
if (s) {
char* p = s;
char* q = s;
/* (never write so:) */
do if (*p != ' ')

OK, Miracle or not Miracle - it's the other story...
You didn't answered the key question: what's is your problem?

Didn't you familiar with school-level arithmetics (where is conversion formula)?...