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Actually, that would be "Vector<Pair<P, Q> >(length)" instead of "Vector(length)", apparently, since "Vector(length)" gives me a compilation error.

Either way, thank you. But I'm curious: is there...

I have the following code:



#include <iostream>
#include <utility>
using namespace std;

template<typename T>
class Vector {

The biggest concern here seems to be writing a single loop to produce the sequence: 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5 (i.e. how to "leap" from 5 to 0). Seems to me that you'll want to use the modulo...

fgets() is preferrable over gets():



fgets(fileName, 256, stdin);


Of course, you may encounter the problem that fgets() leaves a newline character ('\n') on your string. strchr() can help...

Strings cannot be compared with the operator ==. Use:



if (strcmp(fileName, "banana.dat") == 0)

Instead.

Oh, and don't use gets()

You mean like this?



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

int main() {
char input [512];
unsigned int x = 0;

Yeah, I assumed scanf() would fail once it encountered a minus sign. It seems not to be the case. I solved the problem using the following code:

Assuming the user won't enter more than 512...

#include <stdio.h>

int main() {
unsigned int x = 0;
int scanf_value = scanf("%u", &x);
if (scanf_value != 1) {
printf("The user has not entered a valid unsigned integer\n");
}
else {...

Thank you both for your help. I have successfully coded an algorithm to construct those binary trees.

The output for the second one (in-order: 7 8 11 3 5 16 12 18, post-order: 8 3 11 7 16 18 12 5)...

Hi everyone. I'm not gonna lie to you - this is part of an assignment. However, I didn't come here to ask for code.



Right, my only question right now is how can I construct a binary tree from...

Yes, negative numbers are also evaluated as "true".

The answer is 4 because, in C, every value different than 0 is "true". In your example, x is, indeed, different than 0, so the answer is 4. If it were zero, the answer would be 5.

When you call srand() with the same value, the first call to rand() will always return the same number. That's basically what you're doing.

Perhaps you mean "buf[0] set to 0"; talking about NULL doesn't make much sense there, since "buf[0]" is of type "char".

So your idea is that fgets() should set "buf" to an empty string, am I...

Because "buf" is converted to a char* when passed to fgets(). For a function to be able to set it to NULL, a char** would be required. Try this yourself. Write a function that receives a char* as a...

Do this on a command prompt:

your_program > output.txt

I see... One question, though: what if the user entered LONG_MAX or LONG_MIN as a value, after errno has been set to ERANGE by a previous iteration? Should we "sacrifice" those two values in order to...

http://www.hmug.org/man/3/strtol.php



The strtol(), strtoll(), strtoimax() and strtoq() functions return the
result of the conversion, unless the value would underflow or overflow.
...

Oh, but of course! Having an unsigned char* instead of a char* did the trick. So, basically, it was converting a signed type to an unsigned type, which gave me unexpected results.

Thanks for the...

#include <stdio.h>

int main() {
float f = -118.625f;
char* c = (char*)&f;
unsigned int i = 0;
for (i = 0; i < sizeof(float); ++i) {
printf("%u\n", c[i]);
}
getchar();

Now that I'm answering back, I don't think I'll need a "mutex-like" named semaphore, anymore, but tell me this: how would I solve this problem?




//Process A
//Waits for messages on a shared...

I seem to recall a teacher saying that sem_getvalue() could be dangerous. Is this true? If so, why? In what circumstances?

I'm asking you this question because I'm currently doing an assignment...

If I'm not mistaken, some operating systems also leave a '\r' before the '\n'. I think those scanf calls should be converted to fgets + sscanf.

When I look at free()'s manpage, it mentions that its behaviour is undefined if I pass it a pointer which hasn't been returned by malloc(), calloc() or realloc(), or if the pointer I pass to it had...

Excuse me, but I believe the correct conversion string for a double is "&#37;lf", and not "%f".

Source: http://linux.die.net/man/3/scanf

Edit: never mind. printf's conversion strings seem to behave...