Hi all,
I have a vector,the type of the element within it is list<int>,and i wanna sort this vector.So i implemented a function as a predicate for sort(the STL algorithm).Problem came when i missed the bold part in my code,g++ generated lots of error messages.And after i added the bold part,the code compiled successfully.Why?(As i know,the predicate need not to have a const parameter)Any tips will be appreciated.Thanks.
Dengjin.
Another C++ question, please do notify me if this forum is C-only!
:)
I'm having a vector...
vector<Person> x;
... with a class I've defined (Person).
I have several elements in this vector and I would like to save it to a file (binary (?)). And later on open up this file to retrieve... (1 Reply)
using SUN C++ I have a problem when I do a push_back on a vector. The linker gives me a undefined symbol error on __cxa_end_catch.
Any ideas, is there a library to include?
Thanks
Chris (1 Reply)
Hi
i have the following structure
struct S
{
char Mod_num;
char val;
char chr_nm_cd;
}
I am reading a 2GB file and inserting into the structure and writing into a vector.
I feel like only vector will be a right option. I tried with multimap but it is memory intensive and hence i... (1 Reply)
Hi! I need to make dynamic multidimensional arrays using the vector class. I found in this page How to dynamically create a two dimensional array? - Microsoft: Visual C++ FAQ - Tek-Tips the way to do it in 2D, and now i'm trying to expand it to 3D but i don't understand how is the operator working,... (0 Replies)
Hi! I need to make dynamic multidimensional arrays using the vector class. I found in this page How to dynamically create a two dimensional array? - Microsoft: Visual C++ FAQ - Tek-Tips the way to do it in 2D, and now i'm trying to expand it to 3D but i don't understand how is the operator working,... (1 Reply)
I modified some code I found on Wikipedia concerning maps to see if it would work before applying it to a project I'm working on that has a similar idea.
What I would want is for a user to be able to enter sentences and then be able to distinguish how many times a the person entered a word in a... (4 Replies)
Hi all, from my understanding I understand that I can use array in this manner.
struct test
{
int a;
int b;
int c;
};
test testing; //creating an array with the structer type
testing.a=1;
testing.b=2;
testing.c=3;
If I'm not wrong we can use array in this manner,... (12 Replies)
hello guys.
i'm new to c++. i've problem using two dimensional vector.
i've a project of making conway's game of life. this is the code that i have made so far.
my problem is how can i give a two dimensional vector through main.
glider.vec1 = vec; is not correct way to give a two... (2 Replies)
In AWK
For 3 individual vectors of the form:
-2.772 -9.341 -2.857
-5.140 -6.597 -1.823
-2.730 -5.615 1.159
I would like to write a script that parses line by line to (i) normalise, (ii) divide by the norm for *each* vector.
I.e.
sqrt(-2.772^2 + -9.341^2 + -2.857^2)=10.154
... (4 Replies)
Is there a function to convert number (unsigned int for this example) to binary? I could not find a simple one thru google.
While I was learning bloom filter with the example, I was wondering if anybody can help me to
1) display the real bits vector for the bloomfilter;
2) if dataset is very... (11 Replies)
Discussion started by: yifangt
11 Replies
LEARN ABOUT NETBSD
kcpuset
KCPUSET(9) BSD Kernel Developer's Manual KCPUSET(9)NAME
kcpuset, kcpuset_create, kcpuset_destroy, kcpuset_copy, kcpuset_use, kcpuset_unuse, kcpuset_copyin, kcpuset_copyout, kcpuset_zero,
kcpuset_fill, kcpuset_set, kcpuset_clear, kcpuset_isset, kcpuset_iszero, kcpuset_match, kcpuset_merge, kcpuset_atomic_set,
kcpuset_atomic_clear -- dynamic kernel CPU sets
SYNOPSIS
#include <sys/kcpuset.h>
void
kcpuset_create(kcpuset_t **retkcp, bool zero);
void
kcpuset_destroy(kcpuset_t *kcp);
void
kcpuset_copy(kcpuset_t *dkcp, kcpuset_t *skcp);
void
kcpuset_use(kcpuset_t *kcp);
void
kcpuset_unuse(kcpuset_t *kcp, kcpuset_t **lst);
int
kcpuset_copyin(const cpuset_t *ucp, kcpuset_t *kcp, size_t len);
int
kcpuset_copyout(kcpuset_t *kcp, cpuset_t *ucp, size_t len);
void
kcpuset_zero(kcpuset_t *kcp);
void
kcpuset_fill(kcpuset_t *kcp);
void
kcpuset_set(kcpuset_t *kcp, cpuid_t cpu);
void
kcpuset_clear(kcpuset_t *kcp, cpuid_t cpu);
int
kcpuset_isset(kcpuset_t * kcp, cpuid_t cpu);
bool
kcpuset_iszero(kcpuset_t *kcp);
bool
kcpuset_match(const kcpuset_t *kcp1, const kcpuset_t *kcp2);
void
kcpuset_merge(kcpuset_t *kcp1, kcpuset_t *kcp2);
void
kcpuset_atomic_set(kcpuset_t *kcp, cpuid_t cpu);
void
kcpuset_atomic_clear(kcpuset_t *kcp, cpuid_t cpu);
DESCRIPTION
The machine-independent kcpuset subsystem provides support for dynamic processor sets. Conceptually kcpuset can be understood to be the ker-
nel equivalent of the user space cpuset(3) interface.
FUNCTIONS
kcpuset_create(retkcp, zero)
The kcpuset_create() function creates a dynamic CPU set and stores the result to retkcp. If the boolean zero is not false, the
allocated set is also initialized to zero.
kcpuset_destroy(kcp)
Destroys the CPU set kcp and schedules any linked CPU sets for deferred destruction.
kcpuset_copy(dkcp, skcp)
Copies the CPU set pointed by skcp to dkcp.
kcpuset_use(kcp)
Marks kcp as being in use by increasing the reference count of the object. Note that initially kcpuset_create() sets the reference
count to 1.
kcpuset_unuse(kcp, lst)
Decreases the internal reference count of kcp, and on the last reference (when the count reaches zero), destroys kcp. If lst is not
NULL, then instead of destroying, kcp will be added to the lst list for a deferred destruction.
kcpuset_copyin(ucp, kcp, len)
Copies the len bytes long user-space CPU set ucp to the kernel CPU set kcp.
kcpuset_copyout(kcp, ucp, len)
Copies the kernel CPU set kcp to the user-space CPU set ucp.
kcpuset_zero(kcp)
Clears the set kcp.
kcpuset_fill(kcp)
Fills the whole set kcp with ones.
kcpuset_set(kcp, cpu)
Adds cpu to the set kcp.
kcpuset_clear(kcp, cpu)
Removes cpu from the set kcp.
kcpuset_isset(kcp, cpu)
Returns 1 if cpu is part of the CPU set kcp.
kcpuset_iszero(kcp)
Returns true if the set kcp is empty.
kcpuset_match(kcp1, kcp2)
Compares the sets kcp1 and kcp2, returning true if these are identical.
kcpuset_merge(kcp1, kcp2)
Merges the set kcp2 to the set kcp1.
kcpuset_atomic_set(kcp, cpu)
The kcpuset_atomic_set() function operates as kcpuset_set(), but the operation is atomic; see atomic_ops(3) for more details.
kcpuset_atomic_clear(kcp, cpu)
Removes cpu from the CPU set kcp atomically.
CODE REFERENCES
The kcpuset subsystem is implemented within sys/kern/subr_kcpuset.c.
SEE ALSO cpuset(3)HISTORY
The kcpuset subsystem first appeared in NetBSD 6.0.
BSD October 6, 2011 BSD