File: cstr.h

package info (click to toggle)
swiftlang 6.1.3-1
  • links: PTS, VCS
  • area: main
  • in suites: forky
  • size: 2,791,532 kB
  • sloc: cpp: 9,901,743; ansic: 2,201,431; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (60 lines) | stat: -rw-r--r-- 1,843 bytes parent folder | download | duplicates (3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
******************************************************************************
*
*   Copyright (C) 2016, International Business Machines
*   Corporation and others.  All Rights Reserved.
*
******************************************************************************
*
* File: cstr.h
*/

#ifndef CSTR_H
#define CSTR_H

#include <_foundation_unicode/unistr.h>
#include <_foundation_unicode/uobject.h>
#include <_foundation_unicode/utypes.h>

#include "charstr.h"

/**
 * ICU-internal class CStr, a small helper class to facilitate passing UnicodeStrings
 * to functions needing (const char *) strings, such as printf().
 *
 * It is intended primarily for use in debugging or in tests. Uses platform 
 * default code page conversion, which will do the best job possible,
 * but may be lossy, depending on the platform.
 *
 * If no other conversion is available, use invariant conversion and substitute
 * '?' for non-invariant characters.
 *
 * Example Usage:
 *   UnicodeString s = whatever;
 *   printf("%s", CStr(s)());
 *
 *   The explicit call to the CStr() constructor creates a temporary object.
 *   Operator () on the temporary object returns a (const char *) pointer.
 *   The lifetime of the (const char *) data is that of the temporary object,
 *   which works well when passing it as a parameter to another function, such as printf.
 */

U_NAMESPACE_BEGIN

class U_COMMON_API CStr : public UMemory {
  public:
    CStr(const UnicodeString &in);
    ~CStr();
    const char * operator ()() const;

  private:
    CharString s;
    CStr(const CStr &other) = delete;               //  Forbid copying of this class.
    CStr &operator =(const CStr &other) = delete;   //  Forbid assignment.
};

U_NAMESPACE_END

#endif