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comparison cpp/is_number/is_number.hpp @ 648:5bd9424a523a

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misc: extreme cleanup
author David Demelier <markand@malikania.fr>
date Thu, 04 Oct 2018 21:17:55 +0200
parents cba9782e10a7
children 87e1f4c7da76
comparison
equal deleted inserted replaced
647:0557eea4d373 648:5bd9424a523a
29 * \param base the optional base 29 * \param base the optional base
30 * \return true if integer 30 * \return true if integer
31 */ 31 */
32 inline auto is_int(const std::string& str, int base = 10) noexcept -> bool 32 inline auto is_int(const std::string& str, int base = 10) noexcept -> bool
33 { 33 {
34 if (str.empty()) 34 if (str.empty())
35 return false; 35 return false;
36 36
37 char* ptr; 37 char* ptr;
38 38
39 std::strtol(str.c_str(), &ptr, base); 39 std::strtol(str.c_str(), &ptr, base);
40 40
41 return *ptr == 0; 41 return *ptr == 0;
42 } 42 }
43 43
44 /** 44 /**
45 * Check if the string is real. 45 * Check if the string is real.
46 * 46 *
47 * \param value the value 47 * \param value the value
48 * \return true if real 48 * \return true if real
49 */ 49 */
50 inline auto is_real(const std::string &str) noexcept -> bool 50 inline auto is_real(const std::string &str) noexcept -> bool
51 { 51 {
52 if (str.empty()) 52 if (str.empty())
53 return false; 53 return false;
54 54
55 char* ptr; 55 char* ptr;
56 56
57 std::strtod(str.c_str(), &ptr); 57 std::strtod(str.c_str(), &ptr);
58 58
59 return *ptr == 0; 59 return *ptr == 0;
60 } 60 }
61 61
62 /** 62 /**
63 * Check if the string is a number. 63 * Check if the string is a number.
64 * 64 *
65 * \param value the value 65 * \param value the value
66 * \return true if it is a number 66 * \return true if it is a number
67 */ 67 */
68 inline auto is_number(const std::string& str) noexcept -> bool 68 inline auto is_number(const std::string& str) noexcept -> bool
69 { 69 {
70 return is_int(str) || is_real(str); 70 return is_int(str) || is_real(str);
71 } 71 }
72 72
73 #endif // !IS_NUMBER_HPP 73 #endif // !IS_NUMBER_HPP