const uint16_t * u16_next (ucs4_t *puc, const uint16_t *s) { int count; count = u16_strmbtouc (puc, s); if (count > 0) return s + count; else { if (count < 0) *puc = 0xfffd; return NULL; } }
int main () { ucs4_t uc; int ret; /* Test NUL unit input. */ { static const uint16_t input[] = { 0 }; uc = 0xBADFACE; ret = u16_strmbtouc (&uc, input); ASSERT (ret == 0); ASSERT (uc == 0); } /* Test ISO 646 unit input. */ { ucs4_t c; uint16_t buf[2]; for (c = 1; c < 0x80; c++) { buf[0] = c; buf[1] = 0; uc = 0xBADFACE; ret = u16_strmbtouc (&uc, buf); ASSERT (ret == 1); ASSERT (uc == c); } } /* Test BMP unit input. */ { static const uint16_t input[] = { 0x20AC, 0 }; uc = 0xBADFACE; ret = u16_strmbtouc (&uc, input); ASSERT (ret == 1); ASSERT (uc == 0x20AC); } /* Test 2-units character input. */ { static const uint16_t input[] = { 0xD835, 0xDD1F, 0 }; uc = 0xBADFACE; ret = u16_strmbtouc (&uc, input); ASSERT (ret == 2); ASSERT (uc == 0x1D51F); } /* Test incomplete/invalid 1-unit input. */ { static const uint16_t input[] = { 0xD835, 0 }; uc = 0xBADFACE; ret = u16_strmbtouc (&uc, input); ASSERT (ret == -1); ASSERT (uc == 0xBADFACE); } { static const uint16_t input[] = { 0xDD1F, 0 }; uc = 0xBADFACE; ret = u16_strmbtouc (&uc, input); ASSERT (ret == -1); ASSERT (uc == 0xBADFACE); } return 0; }