diff options
Diffstat (limited to 'gcc/testsuite/c-c++-common/Wsign-compare-1.c')
-rw-r--r-- | gcc/testsuite/c-c++-common/Wsign-compare-1.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/gcc/testsuite/c-c++-common/Wsign-compare-1.c b/gcc/testsuite/c-c++-common/Wsign-compare-1.c new file mode 100644 index 00000000000..b9b17a99280 --- /dev/null +++ b/gcc/testsuite/c-c++-common/Wsign-compare-1.c @@ -0,0 +1,33 @@ +/* PR c/81417 */ +/* { dg-do compile } */ +/* { dg-options "-Wsign-compare" } */ + +int +fn1 (signed int a, unsigned int b) +{ + return a < b; /* { dg-warning "comparison of integer expressions of different signedness: 'int' and 'unsigned int'" } */ +} + +int +fn2 (signed int a, unsigned int b) +{ + return b < a; /* { dg-warning "comparison of integer expressions of different signedness: 'unsigned int' and 'int'" } */ +} + +int +fn3 (signed long int a, unsigned long int b) +{ + return b < a; /* { dg-warning "comparison of integer expressions of different signedness: 'long unsigned int' and 'long int'" } */ +} + +int +fn4 (signed short int a, unsigned int b) +{ + return b < a; /* { dg-warning "comparison of integer expressions of different signedness: 'unsigned int' and 'short int'" } */ +} + +int +fn5 (unsigned int a, signed int b) +{ + return a < b; /* { dg-warning "comparison of integer expressions of different signedness: 'unsigned int' and 'int'" } */ +} |