annotate gcc/testsuite/g++.dg/warn/Wsign-conversion-5.C @ 145:1830386684a0

gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
parents
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
145
1830386684a0 gcc-9.2.0
anatofuz
parents:
diff changeset
1 // PR c++/87519 - bogus warning with -Wsign-conversion.
1830386684a0 gcc-9.2.0
anatofuz
parents:
diff changeset
2 // { dg-options "-Wsign-conversion" }
1830386684a0 gcc-9.2.0
anatofuz
parents:
diff changeset
3
1830386684a0 gcc-9.2.0
anatofuz
parents:
diff changeset
4 typedef unsigned long int uint64_t;
1830386684a0 gcc-9.2.0
anatofuz
parents:
diff changeset
5
1830386684a0 gcc-9.2.0
anatofuz
parents:
diff changeset
6 void f(unsigned long int a, int q)
1830386684a0 gcc-9.2.0
anatofuz
parents:
diff changeset
7 {
1830386684a0 gcc-9.2.0
anatofuz
parents:
diff changeset
8 a += a + q; // { dg-warning "may change the sign" }
1830386684a0 gcc-9.2.0
anatofuz
parents:
diff changeset
9
1830386684a0 gcc-9.2.0
anatofuz
parents:
diff changeset
10 // Explicit cast should disable the warning.
1830386684a0 gcc-9.2.0
anatofuz
parents:
diff changeset
11 a = a + static_cast<uint64_t>(q);
1830386684a0 gcc-9.2.0
anatofuz
parents:
diff changeset
12 a = a + (uint64_t) q;
1830386684a0 gcc-9.2.0
anatofuz
parents:
diff changeset
13 a = a + uint64_t(q);
1830386684a0 gcc-9.2.0
anatofuz
parents:
diff changeset
14 a = a + static_cast<const uint64_t>(q);
1830386684a0 gcc-9.2.0
anatofuz
parents:
diff changeset
15 a = a + (const uint64_t) q;
1830386684a0 gcc-9.2.0
anatofuz
parents:
diff changeset
16 a = a + static_cast<unsigned long int>(q);
1830386684a0 gcc-9.2.0
anatofuz
parents:
diff changeset
17 a = a + static_cast<const unsigned long int>(q);
1830386684a0 gcc-9.2.0
anatofuz
parents:
diff changeset
18 }