fix uninitialized map_len being used in munmap failure paths in load_library
[musl] / src / ctype / iswprint.c
1 #include <wctype.h>
2
3 /* Consider all legal codepoints as printable except for:
4  * - C0 and C1 control characters
5  * - U+2028 and U+2029 (line/para break)
6  * - U+FFF9 through U+FFFB (interlinear annotation controls)
7  * The following code is optimized heavily to make hot paths for the
8  * expected printable characters. */
9
10 int iswprint(wint_t wc)
11 {
12         if (wc < 0xffU)
13                 return (wc+1 & 0x7f) >= 0x21;
14         if (wc < 0x2028U || wc-0x202aU < 0xd800-0x202a || wc-0xe000U < 0xfff9-0xe000)
15                 return 1;
16         if (wc-0xfffcU > 0x10ffff-0xfffc || (wc&0xfffe)==0xfffe)
17                 return 0;
18         return 1;
19 }