OpenCoverage

u8-uctomb-aux.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/coreutils/src/lib/unistr/u8-uctomb-aux.c
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1/* Conversion UCS-4 to UTF-8.-
2 Copyright (C) 2002, 2006-2007, 2009-2018 Free Software Foundation, Inc.-
3 Written by Bruno Haible <bruno@clisp.org>, 2002.-
4-
5 This program is free software: you can redistribute it and/or modify it-
6 under the terms of the GNU General Public License as published-
7 by the Free Software Foundation; either version 3 of the License, or-
8 (at your option) any later version.-
9-
10 This program is distributed in the hope that it will be useful,-
11 but WITHOUT ANY WARRANTY; without even the implied warranty of-
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU-
13 General Public License for more details.-
14-
15 You should have received a copy of the GNU General Public License-
16 along with this program. If not, see <https://www.gnu.org/licenses/>. */-
17-
18#include <config.h>-
19-
20/* Specification. */-
21#include "unistr.h"-
22-
23#ifndef FALLTHROUGH-
24# if __GNUC__ < 7-
25# define FALLTHROUGH ((void) 0)-
26# else-
27# define FALLTHROUGH __attribute__ ((__fallthrough__))-
28# endif-
29#endif-
30-
31int-
32u8_uctomb_aux (uint8_t *s, ucs4_t uc, int n)-
33{-
34 int count;-
35-
36 if (uc < 0x80)
uc < 0x80Description
TRUEnever evaluated
FALSEnever evaluated
0
37 /* The case n >= 1 is already handled by the caller. */-
38 return -2;
never executed: return -2;
0
39 else if (uc < 0x800)
uc < 0x800Description
TRUEnever evaluated
FALSEnever evaluated
0
40 count = 2;
never executed: count = 2;
0
41 else if (uc < 0x10000)
uc < 0x10000Description
TRUEnever evaluated
FALSEnever evaluated
0
42 {-
43 if (uc < 0xd800 || uc >= 0xe000)
uc < 0xd800Description
TRUEnever evaluated
FALSEnever evaluated
uc >= 0xe000Description
TRUEnever evaluated
FALSEnever evaluated
0
44 count = 3;
never executed: count = 3;
0
45 else-
46 return -1;
never executed: return -1;
0
47 }-
48 else if (uc < 0x110000)
uc < 0x110000Description
TRUEnever evaluated
FALSEnever evaluated
0
49 count = 4;
never executed: count = 4;
0
50 else-
51 return -1;
never executed: return -1;
0
52-
53 if (n < count)
n < countDescription
TRUEnever evaluated
FALSEnever evaluated
0
54 return -2;
never executed: return -2;
0
55-
56 switch (count) /* note: code falls through cases! */-
57 {-
58 case 4: s[3] = 0x80 | (uc & 0x3f); uc = uc >> 6; uc |= 0x10000;
never executed: case 4:
0
59 FALLTHROUGH;-
60 case 3: s[2] = 0x80 | (uc & 0x3f); uc = uc >> 6; uc |= 0x800;
code before this statement never executed: case 3:
never executed: case 3:
0
61 FALLTHROUGH;-
62 case 2: s[1] = 0x80 | (uc & 0x3f); uc = uc >> 6; uc |= 0xc0;
code before this statement never executed: case 2:
never executed: case 2:
0
63 /*case 1:*/ s[0] = uc;-
64 }
never executed: end of block
0
65 return count;
never executed: return count;
0
66}-
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