HOME
ABOUT
- RESULTS
- differences
- BENEFITS
- HISTORY
- TEAM
- LOCATION
- FACILITIES
- BANKING
- MEMBERSHIPS
- APPROVALS
- LICENCES
- SUPPLIERS
- SPONSORSHIPS
- MEDIA
- PRIVACY
AUCTIONS
SHIPPING
FEES
- TS REWARDS
TOOLS
guides
FAQ
CONTACT
- CONNECT

VEHICLES
BRAND
- JAPANESE CARS
  - DAIHATSU
  - EUNOS
  - FORD
  - HONDA
  - ISUZU
  - LEXUS
  - MAZDA
  - MITSUBISHI
  - MITSUOKA
  - NISSAN
  - SUBARU
  - SUZUKI
  - TOYOTA
- GERMAN CARS
- AMERICAN CARS
- BRITISH CARS
- ITALIAN CARS
- FRENCH CARS
- SWEDISH CARS
- KOREAN CARS
TYPE
- mobility
- VENDING
- instruction
- TAXIS
- AMBULANCES
- FIRE ENGINES
- HEARSES
- LIMOUSINES
- COMMERCIAL
CLASS
FUEL
TRUCKS
minitrucks
- DAIHATSU
- HONDA
- MAZDA
- MITSUBISHI
- NISSAN
- SUBARU
- SUZUKI
- DUMP
- CRANE
- CAMPER
- REFRIGERATED
- 4WD
- NEW
BUSES
MOTORHOMES
- YAHOO!
- RAKUTEN
- DEALER

PARTS
- FREE REPORT
- PARTS CONTAINERS
- PARTS SYSTEMS
- PARTS PROTECTION
- BODY SHELLS
- DISMANTLING
- ONLINE PARTS
- NEW PARTS
- INTERIOR PARTS
- EXTERIOR PARTS
  - BONNETS
  - BUMPERS
  - GRILLES
  - FENDERS
  - DOORS
  - TRUNKS
  - SPOILERS
  - LIGHTS
  - EMBLEMS
  - CAMERAS
- ENGINES
- TRANSMISSIONS
- WHEELS & TYRES
  - WHEELS
  - TYRES
CUTS
PERFORMANCE PARTS
TRUCK PARTS
MOTORBIKE PARTS
- MOTORBIKE ENGINES
- MOTORBIKE ACCESSORIES

MOTORBIKES
MARINE
FORKLIFTS
MACHINERY
AGRICULTURAL
OTHER
COUNTRY
- AUSTRALIA
- CANADA
- KENYA
- MYANMAR
- NEW ZEALAND
- PAKISTAN
- TANZANIA
- UNITED STATES

CARVIEW

MOTORHOMES

Select Language

HTTP/1.1 301 Moved Permanently Server: nginx Date: Mon, 21 Jul 2025 15:59:44 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Location: /reference/valarray/valarray/resize/ HTTP/1.1 200 OK Server: nginx Date: Mon, 21 Jul 2025 15:59:44 GMT Content-Type: text/html; charset=utf-8 Transfer-Encoding: chunked Connection: keep-alive ETag: W/"7e17-cM8Nhi5eM6CokTZxOmnYlIoKrEE" Content-Encoding: gzip

TUTORIALS
REFERENCE
ARTICLES
FORUM

C++

Tutorials
Reference
Articles
Forum

Reference

C library:
- <cassert> (assert.h)
- <cctype> (ctype.h)
- <cerrno> (errno.h)
- C++11
  <cfenv> (fenv.h)
- <cfloat> (float.h)
- C++11
  <cinttypes> (inttypes.h)
- <ciso646> (iso646.h)
- <climits> (limits.h)
- <clocale> (locale.h)
- <cmath> (math.h)
- <csetjmp> (setjmp.h)
- <csignal> (signal.h)
- <cstdarg> (stdarg.h)
- C++11
  <cstdbool> (stdbool.h)
- <cstddef> (stddef.h)
- C++11
  <cstdint> (stdint.h)
- <cstdio> (stdio.h)
- <cstdlib> (stdlib.h)
- <cstring> (string.h)
- C++11
  <ctgmath> (tgmath.h)
- <ctime> (time.h)
- C++11
  <cuchar> (uchar.h)
- <cwchar> (wchar.h)
- <cwctype> (wctype.h)
Containers:
- C++11
  <array>
- <deque>
- C++11
  <forward_list>
- <list>
- <map>
- <queue>
- <set>
- <stack>
- C++11
  <unordered_map>
- C++11
  <unordered_set>
- <vector>
Input/Output:
- <fstream>
- <iomanip>
- <ios>
- <iosfwd>
- <iostream>
- <istream>
- <ostream>
- <sstream>
- <streambuf>
Multi-threading:
- C++11
  <atomic>
- C++11
  <condition_variable>
- C++11
  <future>
- C++11
  <mutex>
- C++11
  <thread>
Other:
- <algorithm>
- <bitset>
- C++11
  <chrono>
- C++11
  <codecvt>
- <complex>
- <exception>
- <functional>
- C++11
  <initializer_list>
- <iterator>
- <limits>
- <locale>
- <memory>
- <new>
- <numeric>
- C++11
  <random>
- C++11
  <ratio>
- C++11
  <regex>
- <stdexcept>
- <string>
- C++11
  <system_error>
- C++11
  <tuple>
- C++11
  <type_traits>
- C++11
  <typeindex>
- <typeinfo>
- <utility>
- <valarray>

<valarray>

classes
- gslice
- gslice_array
- indirect_array
- mask_array
- slice
- slice_array
- valarray
functions
- abs
- acos
- asin
- atan
- atan2
- cos
- cosh
- exp
- log
- log10
- pow
- sin
- sinh
- sqrt
- tan
- tanh

valarray

valarray::~valarray
valarray operators
valarray::valarray
member functions
non-member overloads
- C++11
  begin (valarray)
- C++11
  end (valarray)
- C++11
  swap (valarray)

Reference
<valarray>
valarray
resize

public member function

std::valarray::resize

void resize (size_t sz, T c = T());

Resize valarray

Resizes the valarray, changing its size to sz elements, and assigns the value c to each element.

After resizing, the previous contents are lost: the valarray will contain sz elements, all of them with a value of c.

All pointers and references to elements of the valarray are invalidated by the call.

Parameters

sz: Size of the valarray, in terms of the number of elements.
size_t is an unsigned integral type.
c: Value to be assigned to each of the elements of the resized array.
T is the template argument of valarray (the value type).

Return value

none

Example

// valarray::resize example
#include <iostream>     // std::cout
#include <cstddef>      // std::size_t
#include <valarray>     // std::valarray
int increment (int x) {return ++x;}
int main ()
{
  std::valarray<int> myarray (10,5);   // 10 10 10 10 10
  myarray.resize(3);                   // 0  0  0
  std::cout << "myvalarray contains:";
  for (std::size_t n=0; n<myarray.size(); n++)
	  std::cout << ' ' << myarray[n];
  std::cout << '\n';
  return 0;
}

Output:


myvalarray contains: 0 0 0

Complexity

Depends on library implementation (operations may be parallelized).

Iterator validity

Invalidates all iterators, references and sub-arrays of the valarray.

Data races

The valarray and all its elements are modified.

Exception safety

If any operation performed on the elements throws an exception, it causes undefined behavior.
If the function needs to allocate storage and fails, it may throw an exception (such as bad_alloc), although this is not mandated.

classes

functions

member functions

non-member overloads