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Class implementation file

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so as to make creating objects as simple as possible, ensuring that client code does not distract the user with unnecessary details of the class's implementation. This allows the user the information needed to use the class effectively, but prevents him or her from damaging the compiled code.
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file containing the declaration of the class and its members is also created. If the class definition has been included and the implementation file for its methods is available, the user can
880: 32:. Programming languages like C++ and Objective-C make use of these implementation files so as to separate the interface and implementation of these methods. 900: 639: 52:
of the class. The purpose of this structure is to keep the implementation code hidden, but allow the user to view the design.
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when making use of these implementation files is the extensions used at the end of the files. In C++ it will be
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In this example, the implementation for the functions has been omitted, but the functions must be declared in
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programming. This example will use "ExampleClass". A notable difference between C++ and
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Another example of how a class implementation file would be structured can be seen with
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will usually have a line to include the associated header file (see examples below).
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Neuberg, Matt (26 May 2011). "Chapter 4.3 Header File and Implementation File".
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Neuberg, Matt (26 May 2011). "Chapter 4.3 Header File and Implementation File".
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Neuberg, Matt (26 May 2011). "Chapter 4.3 Header File and Implementation File".
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Neuberg, Matt (26 May 2011). "Chapter 4.3 Header File and Implementation File".
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Neuberg, Matt (26 May 2011). "Chapter 4.3 Header File and Implementation File".
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that will be used by any of the declared methods in the file. The
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The implementation file will contain the actual definition or
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is often used to contain the implementation code for the
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to split the interface from the implementation. The
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O'Reilly Media, Inc. 807:. O'Reilly Media, Inc. 758:. O'Reilly Media, Inc. 709:. O'Reilly Media, Inc. 616:Alan Griffiths (2005). 578:. The Chromium Projects 553:Alan Griffiths (2005). 532:. O'Reilly Media, Inc. 502:Alan Griffiths (2005). 480:Alan Griffiths (2005). 310:This is an example of 271:Example in Objective-C 126:would look like this: 80:would declare all the 576:"C++ Dos and Don'ts" 456:C++ Standard Library 303:extension for their 101:C++ Standard Library 279:, which is used in 863:978-1-4493-8843-0 852:Programming iOS 4 814:978-1-4493-8843-0 803:Programming iOS 4 765:978-1-4493-8843-0 754:Programming iOS 4 716:978-1-4493-8843-0 705:Programming iOS 4 539:978-1-4493-8843-0 528:Programming iOS 4 913: 868: 867: 855: 845: 839: 838: 836: 835: 825: 819: 818: 806: 796: 790: 789: 787: 786: 776: 770: 769: 757: 747: 741: 740: 738: 737: 727: 721: 720: 708: 698: 692: 691: 689: 688: 678: 672: 671: 669: 668: 657: 651: 650: 648: 647: 635: 629: 628: 626: 625: 613: 607: 606: 604: 603: 593: 587: 586: 584: 583: 572: 566: 565: 563: 562: 550: 544: 543: 531: 521: 515: 514: 512: 511: 499: 493: 492: 490: 489: 477: 430: 427: 424: 421: 418: 415: 412: 409: 406: 403: 400: 397: 394: 391: 388: 367: 364: 361: 358: 355: 352: 349: 346: 343: 340: 337: 334: 330: 327: 324: 266: 263: 260: 257: 254: 251: 248: 245: 242: 239: 236: 233: 230: 227: 224: 221: 218: 215: 212: 209: 206: 203: 200: 197: 183: 180: 177: 174: 171: 168: 165: 162: 159: 156: 153: 150: 147: 144: 141: 138: 135: 132: 124:example_class.cc 118: 82:member functions 74:class definition 72:when creating a 42:class definition 921: 920: 916: 915: 914: 912: 911: 910: 886: 885: 877: 872: 871: 864: 846: 842: 833: 831: 827: 826: 822: 815: 797: 793: 784: 782: 778: 777: 773: 766: 748: 744: 735: 733: 729: 728: 724: 717: 699: 695: 686: 684: 680: 679: 675: 666: 664: 659: 658: 654: 645: 643: 636: 632: 623: 621: 614: 610: 601: 599: 595: 594: 590: 581: 579: 574: 573: 569: 560: 558: 551: 547: 540: 522: 518: 509: 507: 500: 496: 487: 485: 478: 474: 469: 437: 432: 431: 428: 425: 422: 419: 416: 413: 410: 407: 404: 401: 398: 395: 392: 390:@implementation 389: 386: 369: 368: 365: 362: 359: 356: 353: 350: 347: 344: 341: 338: 335: 332: 328: 325: 322: 273: 268: 267: 264: 261: 258: 255: 252: 249: 246: 243: 240: 237: 234: 231: 228: 225: 223:// Constructor. 222: 219: 216: 213: 210: 207: 204: 201: 198: 195: 189:example_class.h 185: 184: 181: 178: 175: 172: 169: 166: 163: 160: 157: 154: 151: 148: 145: 142: 139: 136: 133: 130: 116: 113: 70:C++ programming 66: 38: 12: 11: 5: 919: 909: 908: 903: 898: 884: 883: 876: 875:External links 873: 870: 869: 862: 840: 820: 813: 791: 771: 764: 742: 722: 715: 693: 673: 652: 642:. Code Project 630: 608: 588: 567: 545: 538: 516: 494: 471: 470: 468: 465: 464: 463: 458: 453: 448: 443: 436: 433: 420:@"…" 385: 376:Exampleclass.m 321: 312:ExampleClass.h 305:header file(s) 272: 269: 199:<string> 194: 129: 112: 111:Example in C++ 109: 84:(methods) and 65: 62: 37: 34: 9: 6: 4: 3: 2: 918: 907: 904: 902: 899: 897: 894: 893: 891: 882: 879: 878: 865: 859: 854: 853: 844: 830: 824: 816: 810: 805: 804: 795: 781: 775: 767: 761: 756: 755: 746: 732: 726: 718: 712: 707: 706: 697: 683: 677: 662: 656: 641: 634: 619: 612: 598: 592: 577: 571: 556: 549: 541: 535: 530: 529: 520: 505: 498: 483: 476: 472: 462: 459: 457: 454: 452: 449: 447: 444: 442: 439: 438: 383: 381: 377: 374: 319: 317: 313: 308: 306: 302: 298: 294: 290: 286: 282: 278: 192: 190: 127: 125: 120: 108: 106: 102: 98: 94: 89: 87: 83: 79: 75: 71: 61: 58: 53: 51: 47: 43: 33: 31: 27: 23: 19: 851: 843: 832:. Retrieved 823: 802: 794: 783:. Retrieved 774: 753: 745: 734:. Retrieved 725: 704: 696: 685:. Retrieved 676: 665:. 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Index

object-oriented programming
method(s)
class
class definition
instantiate
object
object
C++ programming
class definition
header file
member functions
data methods
source code
header file
C++ Standard Library
Objective-C
iOS
Objective-C
Objective-C
header file(s)
Objective-C
Objective-C
C++ classes
Header file
Source code
C++ Standard Library
Objective-C
"Separating Interface and Implementation in C++"
"Separating Interface and Implementation in C++"
Programming iOS 4

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