multi-byte functions test

diff --git a/src/functional/clocale_mbfuncs.c b/src/functional/clocale_mbfuncs.c
new file mode 100644 (file)
index 0000000..2c4935e
--- /dev/null
+++ b/src/functional/clocale_mbfuncs.c
@@ -0,0 +1,82 @@
+#include <stdio.h>
+#include <string.h>
+#include <wchar.h>
+#include <wctype.h>
+#include <stdlib.h>
+#include <locale.h>
+#include <langinfo.h>
+#include <limits.h>
+#include "test.h"
+
+int main(void)
+{
+       int i, j;
+       mbstate_t st, st2;
+       wchar_t wc, map[257], wtmp[257];
+       char s[MB_LEN_MAX*256];
+       size_t rv;
+       int c;
+       int ni_errors=0;
+
+       setlocale(LC_CTYPE, "C");
+
+       if (MB_CUR_MAX != 1) t_error("MB_CUR_MAX = %d, expected 1\n", (int)MB_CUR_MAX);
+
+       for (i=0; i<256; i++) {
+               st = (mbstate_t){0};
+               if (mbrtowc(&wc, &(char){i}, 1, &st) != !!i)
+                       t_error("mbrtowc failed to convert byte %.2x to wchar_t\n", i);
+               if ((map[i]=btowc(i)) == WEOF) {
+                       t_error("btowc failed to convert byte %.2x to wchar_t\n", i);
+                       continue;
+               }
+               for (j=0; j<i; j++) {
+                       if (map[j]==map[i])
+                               t_error("bytes %.2x and %.2x map to same wchar_t %.4x\n", j, i, (unsigned)map[i]);
+               }
+       }
+
+       for (i=0; i<256; i++) {
+               if (map[i]==WEOF) continue;
+               if (wctob(map[i]) != i)
+                       t_error("wctob failed to convert wchar_t %.4x back to byte %.2x\n", (unsigned)map[i], i);
+       }
+
+       /* covering whole 32-bit range would be too slow... maybe add random high tests? */
+       for (i=0; i<0x110000; i++) {
+               if (wcschr(map+1, i)) continue;
+               if ((c=wctob(i)) != WEOF && ni_errors++ < 50)
+                       t_error("wctob accepted non-image wchar_t %.4x as byte %.2x\n", i, c);
+               st = (mbstate_t){0};
+               if (wcrtomb(s, i, &st) != -1  && ni_errors++ < 50)
+                       t_error("wcrtomb accepted non-image wchar_t %.4x\n", i);
+       }
+       if (ni_errors > 50)
+               t_error("additional %d non-image errors (not printed)\n", ni_errors);
+
+       map[256] = 0;
+       st = (mbstate_t){0};
+       if ((rv=wcsrtombs(s, &(const wchar_t *){map+1}, sizeof s, &st)) != 255)
+               t_error("wcsrtombs returned %zd, expected 255\n", rv);
+       if ((rv=mbsrtowcs(wtmp, &(const char *){s}, 256, &st)) != 255)
+               t_error("mbsrtowcs returned %zd, expected 255\n", rv);
+       if (memcmp(map+1, wtmp, 256*sizeof(*map)))
+               t_error("wcsrtombs/mbsrtowcs round trip failed\n");
+
+       for (i=128; i<256; i++) {
+               if (iswalnum(map[i])) t_error("iswalnum returned true for %.4x (%.2x)\n", map[i], i);
+               if (iswalpha(map[i])) t_error("iswalpha returned true for %.4x (%.2x)\n", map[i], i);
+               if (iswblank(map[i])) t_error("iswblank returned true for %.4x (%.2x)\n", map[i], i);
+               if (iswcntrl(map[i])) t_error("iswcntrl returned true for %.4x (%.2x)\n", map[i], i);
+               if (iswdigit(map[i])) t_error("iswdigit returned true for %.4x (%.2x)\n", map[i], i);
+               if (iswgraph(map[i])) t_error("iswgraph returned true for %.4x (%.2x)\n", map[i], i);
+               if (iswlower(map[i])) t_error("iswlower returned true for %.4x (%.2x)\n", map[i], i);
+               if (iswprint(map[i])) t_error("iswprint returned true for %.4x (%.2x)\n", map[i], i);
+               if (iswpunct(map[i])) t_error("iswpunct returned true for %.4x (%.2x)\n", map[i], i);
+               if (iswspace(map[i])) t_error("iswspace returned true for %.4x (%.2x)\n", map[i], i);
+               if (iswupper(map[i])) t_error("iswupper returned true for %.4x (%.2x)\n", map[i], i);
+               if (iswxdigit(map[i])) t_error("iswxdigit returned true for %.4x (%.2x)\n", map[i], i);
+       }
+
+       return t_status;
+}