OLD | NEW |
1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef BASE_STRING_NUMBER_CONVERSIONS_H_ | 5 // This file has moved, please use the new location. |
6 #define BASE_STRING_NUMBER_CONVERSIONS_H_ | 6 // TODO(brettw) remove this file when all users have been updated. |
7 | 7 #include "base/strings/string_number_conversions.h" |
8 #include <string> | |
9 #include <vector> | |
10 | |
11 #include "base/base_export.h" | |
12 #include "base/basictypes.h" | |
13 #include "base/string_piece.h" | |
14 #include "base/string16.h" | |
15 | |
16 // ---------------------------------------------------------------------------- | |
17 // IMPORTANT MESSAGE FROM YOUR SPONSOR | |
18 // | |
19 // This file contains no "wstring" variants. New code should use string16. If | |
20 // you need to make old code work, use the UTF8 version and convert. Please do | |
21 // not add wstring variants. | |
22 // | |
23 // Please do not add "convenience" functions for converting strings to integers | |
24 // that return the value and ignore success/failure. That encourages people to | |
25 // write code that doesn't properly handle the error conditions. | |
26 // ---------------------------------------------------------------------------- | |
27 | |
28 namespace base { | |
29 | |
30 // Number -> string conversions ------------------------------------------------ | |
31 | |
32 BASE_EXPORT std::string IntToString(int value); | |
33 BASE_EXPORT string16 IntToString16(int value); | |
34 | |
35 BASE_EXPORT std::string UintToString(unsigned value); | |
36 BASE_EXPORT string16 UintToString16(unsigned value); | |
37 | |
38 BASE_EXPORT std::string Int64ToString(int64 value); | |
39 BASE_EXPORT string16 Int64ToString16(int64 value); | |
40 | |
41 BASE_EXPORT std::string Uint64ToString(uint64 value); | |
42 BASE_EXPORT string16 Uint64ToString16(uint64 value); | |
43 | |
44 // DoubleToString converts the double to a string format that ignores the | |
45 // locale. If you want to use locale specific formatting, use ICU. | |
46 BASE_EXPORT std::string DoubleToString(double value); | |
47 | |
48 // String -> number conversions ------------------------------------------------ | |
49 | |
50 // Perform a best-effort conversion of the input string to a numeric type, | |
51 // setting |*output| to the result of the conversion. Returns true for | |
52 // "perfect" conversions; returns false in the following cases: | |
53 // - Overflow/underflow. |*output| will be set to the maximum value supported | |
54 // by the data type. | |
55 // - Trailing characters in the string after parsing the number. |*output| | |
56 // will be set to the value of the number that was parsed. | |
57 // - Leading whitespace in the string before parsing the number. |*output| will | |
58 // be set to the value of the number that was parsed. | |
59 // - No characters parseable as a number at the beginning of the string. | |
60 // |*output| will be set to 0. | |
61 // - Empty string. |*output| will be set to 0. | |
62 BASE_EXPORT bool StringToInt(const StringPiece& input, int* output); | |
63 BASE_EXPORT bool StringToInt(const StringPiece16& input, int* output); | |
64 | |
65 BASE_EXPORT bool StringToUint(const StringPiece& input, unsigned* output); | |
66 BASE_EXPORT bool StringToUint(const StringPiece16& input, unsigned* output); | |
67 | |
68 BASE_EXPORT bool StringToInt64(const StringPiece& input, int64* output); | |
69 BASE_EXPORT bool StringToInt64(const StringPiece16& input, int64* output); | |
70 | |
71 BASE_EXPORT bool StringToUint64(const StringPiece& input, uint64* output); | |
72 BASE_EXPORT bool StringToUint64(const StringPiece16& input, uint64* output); | |
73 | |
74 BASE_EXPORT bool StringToSizeT(const StringPiece& input, size_t* output); | |
75 BASE_EXPORT bool StringToSizeT(const StringPiece16& input, size_t* output); | |
76 | |
77 // For floating-point conversions, only conversions of input strings in decimal | |
78 // form are defined to work. Behavior with strings representing floating-point | |
79 // numbers in hexadecimal, and strings representing non-fininte values (such as | |
80 // NaN and inf) is undefined. Otherwise, these behave the same as the integral | |
81 // variants. This expects the input string to NOT be specific to the locale. | |
82 // If your input is locale specific, use ICU to read the number. | |
83 BASE_EXPORT bool StringToDouble(const std::string& input, double* output); | |
84 | |
85 // Hex encoding ---------------------------------------------------------------- | |
86 | |
87 // Returns a hex string representation of a binary buffer. The returned hex | |
88 // string will be in upper case. This function does not check if |size| is | |
89 // within reasonable limits since it's written with trusted data in mind. If | |
90 // you suspect that the data you want to format might be large, the absolute | |
91 // max size for |size| should be is | |
92 // std::numeric_limits<size_t>::max() / 2 | |
93 BASE_EXPORT std::string HexEncode(const void* bytes, size_t size); | |
94 | |
95 // Best effort conversion, see StringToInt above for restrictions. | |
96 // Will only successful parse hex values that will fit into |output|, i.e. | |
97 // -0x80000000 < |input| < 0x7FFFFFFF. | |
98 BASE_EXPORT bool HexStringToInt(const StringPiece& input, int* output); | |
99 | |
100 // Best effort conversion, see StringToInt above for restrictions. | |
101 // Will only successful parse hex values that will fit into |output|, i.e. | |
102 // -0x8000000000000000 < |input| < 0x7FFFFFFFFFFFFFFF. | |
103 BASE_EXPORT bool HexStringToInt64(const StringPiece& input, int64* output); | |
104 | |
105 // Similar to the previous functions, except that output is a vector of bytes. | |
106 // |*output| will contain as many bytes as were successfully parsed prior to the | |
107 // error. There is no overflow, but input.size() must be evenly divisible by 2. | |
108 // Leading 0x or +/- are not allowed. | |
109 BASE_EXPORT bool HexStringToBytes(const std::string& input, | |
110 std::vector<uint8>* output); | |
111 | |
112 } // namespace base | |
113 | |
114 #endif // BASE_STRING_NUMBER_CONVERSIONS_H_ | |
115 | |
OLD | NEW |