strtok ignores empty fields. Edward would recommend using another solution, like strcspn and some method of reading or copying a substring:

#include <stdio.h>
#include <string.h>

int main()
{...

break from the inner loop and then continue from the outer loop. If there's more to the body, you may need a flag or something similar:

while (condition) {
int nextIteration = 0;

while...

EOF doesn't have an ASCII value, it's required to be negative:

#include <stdio.h>

int main()
{
printf("%d\n", EOF);
return 0;
}

Not without storing the names as strings somewhere:

#include <stdio.h>

typedef struct {
int a;
int b;
} my_struct;

const char * const my_struct_fields[] = {

2x is multiplication; you can do it with 2 * x. The ^ operator exists in C, but not in the way that formulae use it. It means bitwise exclusive-OR instead of exponentiation. Turbo C supports the...

The result of the sizeof operator will give you the size in bytes. The result type is size_t, but printf doesn't support printing size_t except in C99. You can get around that by casting the result...

> If there is no way to calculate the size of RAW data..then wht would I do?
You should always have the size, either because you allocated enough memory to store the data, counted the data at some...

Compilers are just translators that turn readable source code into binary machine code that the computer understands. When a language is created, somebody writes a compiler in a different language....

If you want to make a completely unique copy of the data then you need to know the number of bytes as well as have a pointer to the data. Then you can allocate enough memory to the new pointer and...

Float code could mean a lot of things, can you be more specific?

> Let's say a=2, b=3; in for loop it will loop for 3 times rite?
Right. If you know how many times the loop will loop, you can take the loop away and simplify the world:

a = 2;
b = 3;...

When you want to print an address, you use the %p format modifier, and for extra safely cast the value to void*:

printf("%p\t%p\n", (void*)&i, (void*)&j);

> Which would be more acceptable to use?
It depends on a few things. The most obvious is that neither getch() nor system("pause") work everywhere.

getch():

Isn't mandated by the C standard,...

Edward isn't an expert on getch, but isn't the very definition of getch to read unbuffered input directly from the keyboard? Please post your code so that Ed can get a better idea of what you're...

> but you'd have to write a function to convert an entire string.
A lot of compilers also have this kind of function as an extension to the standard library:

#include <stdio.h>
#include...

> 2. What will be printed if the input is 100? Your grade is X you did great
This answer is not correct. Be sure to carefully check what the boundary number is for each case.

> 4. What will be...

That's just a fancy way of doing this:

static unsigned seed;

int getRand(int a, int b)
{
srand(seed);
return a + rand() % (b - a + 1);
}

fgets reads a single line of characters, but fread reads a block of unidentified objects. fgets uses '\n' as a delimiter, but fread doesn't inspect any of the objects so it relies on a limit of the...

> If Im not clear on something, go ahead and ask.
What is it you want? Edward prefers to see the best in others, but if you only post the requirements of your program, at least one person is going...

The same number or some numbers are being repeated? Your code works just fine when Edward tests it, but repeated numbers are expected unless you go out of your way to avoid them with something like a...

>I don't know where to allocate buffer...
Since you're passing the buffer by reference to string_concat, you should allocate the buffer in main, but if string_concat tries to make the string longer...

> I found the problem thanks to your example!
Woohoo! :) Just remember that sprintf and sscanf are exactly the same as fprintf and fscanf except they use strings instead of files. That's how Ed...

Does your sprintf call look like this?

#include <stdio.h>

int main(void)
{
int x = 123;
char s[4]; /* Enough room for "123" +1 for null character */

sprintf(s, "%d", x);

You count the lines, but you don't go back and get the random line. Your function will always pick the last line in the file. This is what you want:

#include <stdio.h>
#include <stdlib.h>...

The hard part is working out how to get a random line from the file when you don't know how many lines there are. One way is to read the file once and count the lines, then use that count to pick a...