msg_342.c revision 1.4 
1/*	$NetBSD: msg_342.c,v 1.4 2022/06/17 18:54:53 rillig Exp $	*/
2# 3 "msg_342.c"
3
4// Test for message: argument to '%s' must be cast to 'unsigned char', not to '%s' [342]
5
6/*
7 * Ensure that the functions from <ctype.h> are called with the correct
8 * argument.
9 */
10
11/* NetBSD 9.99.81, <ctype.h> */
12extern const unsigned short *_ctype_tab_;
13extern const short *_tolower_tab_;
14extern const short *_toupper_tab_;
15int isalnum(int);
16int isalpha(int);
17int isblank(int);
18int iscntrl(int);
19int isdigit(int);
20int isgraph(int);
21int islower(int);
22int isprint(int);
23int ispunct(int);
24int isspace(int);
25int isupper(int);
26int isxdigit(int);
27int tolower(int);
28int toupper(int);
29
30int is_other(int);
31int to_other(int);
32
33void sink(int);
34
35void
36cover_is_ctype_function(char c)
37{
38	/* expect+1: warning: argument to 'isalnum' must be 'unsigned char' or EOF, not 'char' [341] */
39	isalnum(c);
40	/* expect+1: warning: argument to 'isalpha' must be 'unsigned char' or EOF, not 'char' [341] */
41	isalpha(c);
42	/* expect+1: warning: argument to 'isblank' must be 'unsigned char' or EOF, not 'char' [341] */
43	isblank(c);
44	/* expect+1: warning: argument to 'iscntrl' must be 'unsigned char' or EOF, not 'char' [341] */
45	iscntrl(c);
46	/* expect+1: warning: argument to 'isdigit' must be 'unsigned char' or EOF, not 'char' [341] */
47	isdigit(c);
48	/* expect+1: warning: argument to 'isgraph' must be 'unsigned char' or EOF, not 'char' [341] */
49	isgraph(c);
50	/* expect+1: warning: argument to 'islower' must be 'unsigned char' or EOF, not 'char' [341] */
51	islower(c);
52	/* expect+1: warning: argument to 'isprint' must be 'unsigned char' or EOF, not 'char' [341] */
53	isprint(c);
54	/* expect+1: warning: argument to 'ispunct' must be 'unsigned char' or EOF, not 'char' [341] */
55	ispunct(c);
56	/* expect+1: warning: argument to 'isspace' must be 'unsigned char' or EOF, not 'char' [341] */
57	isspace(c);
58	/* expect+1: warning: argument to 'isupper' must be 'unsigned char' or EOF, not 'char' [341] */
59	isupper(c);
60	/* expect+1: warning: argument to 'isxdigit' must be 'unsigned char' or EOF, not 'char' [341] */
61	isxdigit(c);
62	/* expect+1: warning: argument to 'tolower' must be 'unsigned char' or EOF, not 'char' [341] */
63	tolower(c);
64	/* expect+1: warning: argument to 'toupper' must be 'unsigned char' or EOF, not 'char' [341] */
65	toupper(c);
66
67	/* Functions with similar names are not checked. */
68	is_other(c);
69	to_other(c);
70}
71
72void
73function_call_char(char c)
74{
75
76	/* expect+1: warning: argument to 'isspace' must be 'unsigned char' or EOF, not 'char' [341] */
77	(isspace)(c);
78
79	/* This is the only allowed form. */
80	isspace((unsigned char)c);
81
82	/* The cast to 'int' is redundant, it doesn't hurt though. */
83	isspace((int)(unsigned char)c);
84
85	/* expect+1: warning: argument to 'isspace' must be cast to 'unsigned char', not to 'int' [342] */
86	isspace((int)c);
87
88	/* expect+1: warning: argument to 'isspace' must be cast to 'unsigned char', not to 'unsigned int' [342] */
89	isspace((unsigned int)c);
90}
91
92/*
93 * If the expression starts with type 'unsigned char', it can be cast to any
94 * other type.  Chances are low enough that the cast is to 'char', which would
95 * be the only bad type.
96 */
97void
98function_call_unsigned_char(unsigned char c)
99{
100
101	(isspace)(c);
102	isspace((unsigned char)c);
103	isspace((int)c);
104	isspace((unsigned int)c);
105}
106
107/* When used in a loop of fgetc, the type is already 'int'.  That's fine. */
108void
109function_call_int(int c)
110{
111
112	isspace(c);
113}
114
115void
116macro_invocation_NetBSD(char c)
117{
118
119	/* expect+1: warning: argument to 'function from <ctype.h>' must be 'unsigned char' or EOF, not 'char' [341] */
120	sink(((int)((_ctype_tab_ + 1)[(c)] & 0x0040)));
121
122	/* This is the only allowed form. */
123	sink(((int)((_ctype_tab_ + 1)[((unsigned char)c)] & 0x0040)));
124
125	/* expect+1: warning: argument to 'function from <ctype.h>' must be cast to 'unsigned char', not to 'int' [342] */
126	sink(((int)((_ctype_tab_ + 1)[((int)c)] & 0x0040)));
127
128	/* expect+1: warning: argument to 'function from <ctype.h>' must be cast to 'unsigned char', not to 'unsigned int' [342] */
129	sink(((int)((_ctype_tab_ + 1)[((unsigned int)c)] & 0x0040)));
130}
131