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comparison gcc/testsuite/c-c++-common/Wshift-negative-value-1.c @ 145:1830386684a0

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gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
parents 04ced10e8804
children
comparison
equal deleted inserted replaced
131:84e7813d76e9 145:1830386684a0
4 /* { dg-additional-options "-std=c++11" { target c++ } } */ 4 /* { dg-additional-options "-std=c++11" { target c++ } } */
5 5
6 enum E { 6 enum E {
7 A = 0 << 1, 7 A = 0 << 1,
8 B = 1 << 1, 8 B = 1 << 1,
9 C = -1 << 1, /* { dg-warning "left shift of negative value|not an integer constant" } */ 9 C = -1 << 1, /* { dg-warning "10:left shift of negative value|not an integer constant" } */
10 /* { dg-error "left operand of shift expression" "shift" { target c++ } .-1 } */ 10 /* { dg-error "left operand of shift expression" "shift" { target c++ } .-1 } */
11 D = 0 >> 1, 11 D = 0 >> 1,
12 E = 1 >> 1, 12 E = 1 >> 1,
13 F = -1 >> 1 13 F = -1 >> 1
14 }; 14 };
21 const int o = 1; 21 const int o = 1;
22 const int m = -1; 22 const int m = -1;
23 int r = 0; 23 int r = 0;
24 r += z << x; 24 r += z << x;
25 r += o << x; 25 r += o << x;
26 r += m << x; /* { dg-warning "left shift of negative value" } */ 26 r += m << x; /* { dg-warning "10:left shift of negative value" } */
27 r += 0 << x; 27 r += 0 << x;
28 r += 1 << x; 28 r += 1 << x;
29 r += -1 << x; /* { dg-warning "left shift of negative value" } */ 29 r += -1 << x; /* { dg-warning "11:left shift of negative value" } */
30 r += -1U << x; 30 r += -1U << x;
31 return r; 31 return r;
32 } 32 }
33 33
34 int 34 int