Line | Source | Count |
1 | This file is shift.def, from which is created shift.c. | - |
2 | It implements the builtin "shift" in Bash. | - |
3 | | - |
4 | Copyright (C) 1987-2009 Free Software Foundation, Inc. | - |
5 | | - |
6 | This file is part of GNU Bash, the Bourne Again SHell. | - |
7 | | - |
8 | Bash is free software: you can redistribute it and/or modify | - |
9 | it under the terms of the GNU General Public License as published by | - |
10 | the Free Software Foundation, either version 3 of the License, or | - |
11 | (at your option) any later version. | - |
12 | | - |
13 | Bash is distributed in the hope that it will be useful, | - |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | - |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | - |
16 | GNU General Public License for more details. | - |
17 | | - |
18 | You should have received a copy of the GNU General Public License | - |
19 | along with Bash. If not, see <http: | - |
20 | | - |
21 | $PRODUCES shift.c | - |
22 | | - |
23 | #include <config.h> | - |
24 | | - |
25 | #if defined (HAVE_UNISTD_H) | - |
26 | # ifdef _MINIX | - |
27 | # include <sys/types.h> | - |
28 | # endif | - |
29 | # include <unistd.h> | - |
30 | #endif | - |
31 | | - |
32 | #include "../bashansi.h" | - |
33 | #include "../bashintl.h" | - |
34 | | - |
35 | #include "../shell.h" | - |
36 | #include "common.h" | - |
37 | | - |
38 | $BUILTIN shift | - |
39 | $FUNCTION shift_builtin | - |
40 | $SHORT_DOC shift [n] | - |
41 | Shift positional parameters. | - |
42 | | - |
43 | Rename the positional parameters $N+1,$N+2 ... to $1,$2 ... If N is | - |
44 | not given, it is assumed to be 1. | - |
45 | | - |
46 | Exit Status: | - |
47 | Returns success unless N is negative or greater than $#. | - |
48 | $END | - |
49 | | - |
50 | int print_shift_error; | - |
51 | | - |
52 | | - |
53 | | - |
54 | | - |
55 | | - |
56 | int | - |
57 | shift_builtin (list) | - |
58 | WORD_LIST *list; | - |
59 | { | - |
60 | intmax_t times; | - |
61 | register int count; | - |
62 | WORD_LIST *temp; | - |
63 | | - |
64 | CHECK_HELPOPT (list); never executed: __result = (((const unsigned char *) (const char *) ( ((list)->word->word) ))[3] - __s2[3]); never executed: end of block never executed: end of block never executed: __result = (((const unsigned char *) (const char *) ( "--help" ))[3] - __s2[3]); never executed: end of block never executed: end of block never executed: return (258); TRUE | evaluated 94 times by 1 test | FALSE | evaluated 11899359 times by 1 test |
TRUE | evaluated 94 times by 1 test | FALSE | never evaluated |
TRUE | evaluated 6 times by 1 test | FALSE | evaluated 88 times by 1 test |
TRUE | never evaluated | FALSE | evaluated 6 times by 1 test |
TRUE | never evaluated | FALSE | never evaluated |
TRUE | never evaluated | FALSE | never evaluated |
TRUE | never evaluated | FALSE | never evaluated |
TRUE | never evaluated | FALSE | never evaluated |
TRUE | never evaluated | FALSE | never evaluated |
TRUE | never evaluated | FALSE | never evaluated |
TRUE | never evaluated | FALSE | never evaluated |
TRUE | never evaluated | FALSE | never evaluated |
TRUE | never evaluated | FALSE | never evaluated |
TRUE | never evaluated | FALSE | never evaluated |
TRUE | never evaluated | FALSE | never evaluated |
TRUE | never evaluated | FALSE | never evaluated |
| 0-11899359 |
65 | | - |
66 | if (get_numeric_arg (list, 0, ×) == 0)TRUE | evaluated 5 times by 1 test | FALSE | evaluated 11899443 times by 1 test |
| 5-11899443 |
67 | return (EXECUTION_FAILURE);executed 5 times by 1 test: return (1); | 5 |
68 | | - |
69 | if (times == 0)TRUE | never evaluated | FALSE | evaluated 11899443 times by 1 test |
| 0-11899443 |
70 | return (EXECUTION_SUCCESS); never executed: return (0); | 0 |
71 | else if (times < 0)TRUE | evaluated 6 times by 1 test | FALSE | evaluated 11899437 times by 1 test |
| 6-11899437 |
72 | { | - |
73 | sh_erange (list ? list->word->word : NULL, _("shift count")); | - |
74 | return (EXECUTION_FAILURE);executed 6 times by 1 test: return (1); | 6 |
75 | } | - |
76 | else if (times > number_of_args ())TRUE | evaluated 5 times by 1 test | FALSE | evaluated 11899432 times by 1 test |
| 5-11899432 |
77 | { | - |
78 | if (print_shift_error)TRUE | evaluated 5 times by 1 test | FALSE | never evaluated |
| 0-5 |
79 | sh_erange (list ? list->word->word : NULL, _("shift count"));executed 5 times by 1 test: sh_erange (list ? list->word->word : ((void *)0) , dcgettext (((void *)0), "shift count" , 5) ); | 5 |
80 | return (EXECUTION_FAILURE);executed 5 times by 1 test: return (1); | 5 |
81 | } | - |
82 | | - |
83 | while (times-- > 0)TRUE | evaluated 11899631 times by 1 test | FALSE | evaluated 11899432 times by 1 test |
| 11899432-11899631 |
84 | { | - |
85 | if (dollar_vars[1])TRUE | evaluated 11899631 times by 1 test | FALSE | never evaluated |
| 0-11899631 |
86 | free (dollar_vars[1]);executed 11899631 times by 1 test: sh_xfree((dollar_vars[1]), "./shift.def", 86); | 11899631 |
87 | | - |
88 | for (count = 1; count < 9; count++)TRUE | evaluated 95197048 times by 1 test | FALSE | evaluated 11899631 times by 1 test |
| 11899631-95197048 |
89 | dollar_vars[count] = dollar_vars[count + 1];executed 95197048 times by 1 test: dollar_vars[count] = dollar_vars[count + 1]; | 95197048 |
90 | | - |
91 | if (rest_of_args)TRUE | evaluated 14 times by 1 test | FALSE | evaluated 11899617 times by 1 test |
| 14-11899617 |
92 | { | - |
93 | temp = rest_of_args; | - |
94 | dollar_vars[9] = savestring (temp->word->word); | - |
95 | rest_of_args = rest_of_args->next; | - |
96 | temp->next = (WORD_LIST *)NULL; | - |
97 | dispose_words (temp); | - |
98 | }executed 14 times by 1 test: end of block | 14 |
99 | else | - |
100 | dollar_vars[9] = (char *)NULL;executed 11899617 times by 1 test: dollar_vars[9] = (char *) ((void *)0) ; | 11899617 |
101 | } | - |
102 | | - |
103 | invalidate_cached_quoted_dollar_at (); | - |
104 | | - |
105 | return (EXECUTION_SUCCESS);executed 11899432 times by 1 test: return (0); | 11899432 |
106 | } | - |
| | |