Mercurial > hg > CbC > CbC_gcc

annotate gcc/testsuite/gcc.dg/Wconversion-integer-no-sign.c @ 158:494b0b89df80 default tip

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
...
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 25 May 2020 18:13:55 +0900
parents 04ced10e8804
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
111
kono
parents:
diff changeset
1 /* Test for diagnostics for implicit conversions between integer types
kono
parents:
diff changeset
2 These tests come from gcc/testsuite/gcc.dg/overflow-warn-2.c */
kono
parents:
diff changeset
3
kono
parents:
diff changeset
4 /* { dg-do compile } */
kono
parents:
diff changeset
5 /* { dg-options "-std=c99 -fsigned-char -Wconversion -Wno-sign-conversion" } */
kono
parents:
diff changeset
6
kono
parents:
diff changeset
7 #include <limits.h>
kono
parents:
diff changeset
8
kono
parents:
diff changeset
9 void fsc (signed char sc);
kono
parents:
diff changeset
10 void fuc (unsigned char uc);
kono
parents:
diff changeset
11 unsigned fui (unsigned int ui);
kono
parents:
diff changeset
12 void fsi (signed int ui);
kono
parents:
diff changeset
13
kono
parents:
diff changeset
14 void h (int x)
kono
parents:
diff changeset
15 {
kono
parents:
diff changeset
16 unsigned int ui = 3;
kono
parents:
diff changeset
17 int si = 3;
kono
parents:
diff changeset
18 unsigned char uc = 3;
kono
parents:
diff changeset
19 signed char sc = 3;
kono
parents:
diff changeset
20
kono
parents:
diff changeset
21 uc = ui; /* { dg-warning "conversion" } */
kono
parents:
diff changeset
22 uc = si; /* { dg-warning "conversion" } */
kono
parents:
diff changeset
23 sc = ui; /* { dg-warning "conversion" } */
kono
parents:
diff changeset
24 sc = si; /* { dg-warning "conversion" } */
kono
parents:
diff changeset
25 fuc (ui); /* { dg-warning "conversion" } */
kono
parents:
diff changeset
26 fuc (si); /* { dg-warning "conversion" } */
kono
parents:
diff changeset
27 fsc (ui); /* { dg-warning "conversion" } */
kono
parents:
diff changeset
28 fsc (si); /* { dg-warning "conversion" } */
kono
parents:
diff changeset
29
kono
parents:
diff changeset
30 fsi (si);
kono
parents:
diff changeset
31 fui (ui);
kono
parents:
diff changeset
32 fsi (uc);
kono
parents:
diff changeset
33 si = uc;
kono
parents:
diff changeset
34 fui (uc);
kono
parents:
diff changeset
35 ui = uc;
kono
parents:
diff changeset
36 fui ('A');
kono
parents:
diff changeset
37 ui = 'A';
kono
parents:
diff changeset
38 fsi ('A');
kono
parents:
diff changeset
39 si = 'A';
kono
parents:
diff changeset
40 fuc ('A');
kono
parents:
diff changeset
41 uc = 'A';
kono
parents:
diff changeset
42
kono
parents:
diff changeset
43 uc = x ? 1U : -1; /* { dg-warning "conversion" } */
kono
parents:
diff changeset
44 uc = x ? SCHAR_MIN : 1U; /* { dg-warning "conversion" } */
kono
parents:
diff changeset
45 uc = x ? 1 : -1; /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
46 uc = x ? SCHAR_MIN : 1; /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
47 ui = x ? 1U : -1; /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
48 ui = x ? INT_MIN : 1U; /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
49 ui = ui ? SCHAR_MIN : 1U; /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
50 ui = 1U * -1; /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
51 ui = ui + INT_MIN; /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
52 ui = x ? 1 : -1; /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
53 ui = ui ? SCHAR_MIN : 1; /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
54
kono
parents:
diff changeset
55 fuc (-1); /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
56 uc = -1; /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
57 fui (-1); /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
58 ui = -1; /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
59 fuc ('\xa0'); /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
60 uc = '\xa0'; /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
61 fui ('\xa0'); /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
62 ui = '\xa0'; /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
63 fsi ((unsigned) INT_MAX + 1U); /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
64 si = (unsigned) INT_MAX + 1U; /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
65
kono
parents:
diff changeset
66
kono
parents:
diff changeset
67 fsi (UINT_MAX - 1); /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
68 si = UINT_MAX - 1; /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
69 fsi (UINT_MAX - 1U); /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
70 si = UINT_MAX - 1U; /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
71 fsi (UINT_MAX/3U);
kono
parents:
diff changeset
72 si = UINT_MAX/3U;
kono
parents:
diff changeset
73 fsi (UINT_MAX/3);
kono
parents:
diff changeset
74 si = UINT_MAX/3;
kono
parents:
diff changeset
75 fui (UINT_MAX - 1);
kono
parents:
diff changeset
76 ui = UINT_MAX - 1;
kono
parents:
diff changeset
77
kono
parents:
diff changeset
78 uc = (unsigned char) -1;
kono
parents:
diff changeset
79 ui = -1 * (1 * -1);
kono
parents:
diff changeset
80 ui = (unsigned) -1;
kono
parents:
diff changeset
81
kono
parents:
diff changeset
82 fsc (uc); /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
83 sc = uc; /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
84 fuc (sc); /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
85 uc = sc; /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
86 fsi (ui); /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
87 si = ui; /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
88 fui (si); /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
89 ui = si; /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
90 fui (sc); /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
91 ui = sc; /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
92 }
kono
parents:
diff changeset
93
kono
parents:
diff changeset
94 unsigned fui (unsigned a) { return a + -1; } /* Warned by -Wsign-conversion. */
kono
parents:
diff changeset
95
kono
parents:
diff changeset
96