C/wctype.h/towlower

wint_t towlower(wint_t ch) vs tolower()

<source lang="cpp">

1. include <stdio.h>
2. include <wctype.h>

int main(void) {

  int wc;
  for (wc=0; wc <= 0xFF; wc++) {
     printf("%3d", wc);
     printf(" %#4x ", wc);
     printf("%3s", towlower(wc)  ? "AN" : " ");
     putchar("\n");
  }

}

/*

 0    0
 1  0x1  AN
 2  0x2  AN
 3  0x3  AN
 4  0x4  AN
 5  0x5  AN
 6  0x6  AN
 7  0x7  AN
 8  0x8  AN
 9  0x9  AN
10  0xa  AN
11  0xb  AN
12  0xc  AN
13  0xd  AN
14  0xe  AN
15  0xf  AN
16 0x10  AN
17 0x11  AN
18 0x12  AN
19 0x13  AN
20 0x14  AN
21 0x15  AN
22 0x16  AN
23 0x17  AN
24 0x18  AN
25 0x19  AN
26 0x1a  AN
27 0x1b  AN
28 0x1c  AN
29 0x1d  AN
30 0x1e  AN
31 0x1f  AN
32 0x20  AN
33 0x21  AN
34 0x22  AN
35 0x23  AN
36 0x24  AN
37 0x25  AN
38 0x26  AN
39 0x27  AN
40 0x28  AN
41 0x29  AN
42 0x2a  AN
43 0x2b  AN
44 0x2c  AN
45 0x2d  AN
46 0x2e  AN
47 0x2f  AN
48 0x30  AN
49 0x31  AN
50 0x32  AN
51 0x33  AN
52 0x34  AN
53 0x35  AN
54 0x36  AN
55 0x37  AN
56 0x38  AN
57 0x39  AN
58 0x3a  AN
59 0x3b  AN
60 0x3c  AN
61 0x3d  AN
62 0x3e  AN
63 0x3f  AN
64 0x40  AN
65 0x41  AN
66 0x42  AN
67 0x43  AN
68 0x44  AN
69 0x45  AN
70 0x46  AN
71 0x47  AN
72 0x48  AN
73 0x49  AN
74 0x4a  AN
75 0x4b  AN
76 0x4c  AN
77 0x4d  AN
78 0x4e  AN
79 0x4f  AN
80 0x50  AN
81 0x51  AN
82 0x52  AN
83 0x53  AN
84 0x54  AN
85 0x55  AN
86 0x56  AN
87 0x57  AN
88 0x58  AN
89 0x59  AN
90 0x5a  AN
91 0x5b  AN
92 0x5c  AN
93 0x5d  AN
94 0x5e  AN
95 0x5f  AN
96 0x60  AN
97 0x61  AN
98 0x62  AN
99 0x63  AN

100 0x64 AN 101 0x65 AN 102 0x66 AN 103 0x67 AN 104 0x68 AN 105 0x69 AN 106 0x6a AN 107 0x6b AN 108 0x6c AN 109 0x6d AN 110 0x6e AN 111 0x6f AN 112 0x70 AN 113 0x71 AN 114 0x72 AN 115 0x73 AN 116 0x74 AN 117 0x75 AN 118 0x76 AN 119 0x77 AN 120 0x78 AN 121 0x79 AN 122 0x7a AN 123 0x7b AN 124 0x7c AN 125 0x7d AN 126 0x7e AN 127 0x7f AN 128 0x80 AN 129 0x81 AN 130 0x82 AN 131 0x83 AN 132 0x84 AN 133 0x85 AN 134 0x86 AN 135 0x87 AN 136 0x88 AN 137 0x89 AN 138 0x8a AN 139 0x8b AN 140 0x8c AN 141 0x8d AN 142 0x8e AN 143 0x8f AN 144 0x90 AN 145 0x91 AN 146 0x92 AN 147 0x93 AN 148 0x94 AN 149 0x95 AN 150 0x96 AN 151 0x97 AN 152 0x98 AN 153 0x99 AN 154 0x9a AN 155 0x9b AN 156 0x9c AN 157 0x9d AN 158 0x9e AN 159 0x9f AN 160 0xa0 AN 161 0xa1 AN 162 0xa2 AN 163 0xa3 AN 164 0xa4 AN 165 0xa5 AN 166 0xa6 AN 167 0xa7 AN 168 0xa8 AN 169 0xa9 AN 170 0xaa AN 171 0xab AN 172 0xac AN 173 0xad AN 174 0xae AN 175 0xaf AN 176 0xb0 AN 177 0xb1 AN 178 0xb2 AN 179 0xb3 AN 180 0xb4 AN 181 0xb5 AN 182 0xb6 AN 183 0xb7 AN 184 0xb8 AN 185 0xb9 AN 186 0xba AN 187 0xbb AN 188 0xbc AN 189 0xbd AN 190 0xbe AN 191 0xbf AN 192 0xc0 AN 193 0xc1 AN 194 0xc2 AN 195 0xc3 AN 196 0xc4 AN 197 0xc5 AN 198 0xc6 AN 199 0xc7 AN 200 0xc8 AN 201 0xc9 AN 202 0xca AN 203 0xcb AN 204 0xcc AN 205 0xcd AN 206 0xce AN 207 0xcf AN 208 0xd0 AN 209 0xd1 AN 210 0xd2 AN 211 0xd3 AN 212 0xd4 AN 213 0xd5 AN 214 0xd6 AN 215 0xd7 AN 216 0xd8 AN 217 0xd9 AN 218 0xda AN 219 0xdb AN 220 0xdc AN 221 0xdd AN 222 0xde AN 223 0xdf AN 224 0xe0 AN 225 0xe1 AN 226 0xe2 AN 227 0xe3 AN 228 0xe4 AN 229 0xe5 AN 230 0xe6 AN 231 0xe7 AN 232 0xe8 AN 233 0xe9 AN 234 0xea AN 235 0xeb AN 236 0xec AN 237 0xed AN 238 0xee AN 239 0xef AN 240 0xf0 AN 241 0xf1 AN 242 0xf2 AN 243 0xf3 AN 244 0xf4 AN 245 0xf5 AN 246 0xf6 AN 247 0xf7 AN 248 0xf8 AN 249 0xf9 AN 250 0xfa AN 251 0xfb AN 252 0xfc AN 253 0xfd AN 254 0xfe AN 255 0xff AN

• /

      </source>