diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/Wtype-limits-no.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/Wtype-limits-no.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/Wtype-limits-no.c b/gcc-4.9/gcc/testsuite/gcc.dg/Wtype-limits-no.c new file mode 100644 index 000000000..2af909abf --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/Wtype-limits-no.c @@ -0,0 +1,66 @@ +/* Test disabling -Wtype-limits */ +/* { dg-do compile } */ +/* { dg-options "-Wextra -Wno-type-limits" } */ + + +void a (unsigned char x) +{ + if (x < 0) return;/* { dg-bogus "comparison is always false due to limited range of data type" } */ + if (x >= 0) return;/* { dg-bogus "comparison is always true due to limited range of data type" } */ + if (0 > x) return;/* { dg-bogus "comparison is always false due to limited range of data type" } */ + if (0 <= x) return;/* { dg-bogus "comparison is always true due to limited range of data type" } */ + if (x <= 255) /* { dg-bogus "comparison is always true due to limited range of data type" } */ + return; + if (255 >= x) /* { dg-bogus "comparison is always true due to limited range of data type" } */ + return; + if ((int)x <= 255) + return; + if (255 >= (unsigned char) 1) + return; + +} + +void b (unsigned short x) +{ + if (x < 0) return;/* { dg-bogus "comparison is always false due to limited range of data type" } */ + if (x >= 0) return;/* { dg-bogus "comparison is always true due to limited range of data type" } */ + if (0 > x) return;/* { dg-bogus "comparison is always false due to limited range of data type" } */ + if (0 <= x) return;/* { dg-bogus "comparison is always true due to limited range of data type" } */ +} + +void c (unsigned int x) +{ + if (x < 0) return;/* { dg-bogus "comparison of unsigned expression < 0 is always false" } */ + if (x >= 0) return;/* { dg-bogus "comparison of unsigned expression >= 0 is always true" } */ + if (0 > x) return;/* { dg-bogus "comparison of unsigned expression < 0 is always false" } */ + if (0 <= x) return;/* { dg-bogus "comparison of unsigned expression >= 0 is always true" } */ + if (1U >= 0) return; + if (1U < 0) return; + if (0 <= 1U) return; + if (0 > 1U) return; +} + +void d (unsigned long x) +{ + if (x < 0) return;/* { dg-bogus "comparison of unsigned expression < 0 is always false" } */ + if (x >= 0) return;/* { dg-bogus "comparison of unsigned expression >= 0 is always true" } */ + if (0 > x) return;/* { dg-bogus "comparison of unsigned expression < 0 is always false" } */ + if (0 <= x) return;/* { dg-bogus "comparison of unsigned expression >= 0 is always true" } */ +} + +void e (unsigned long long x) +{ + if (x < 0) return;/* { dg-bogus "comparison of unsigned expression < 0 is always false" } */ + if (x >= 0) return;/* { dg-bogus "comparison of unsigned expression >= 0 is always true" } */ + if (0 > x) return;/* { dg-bogus "comparison of unsigned expression < 0 is always false" } */ + if (0 <= x) return;/* { dg-bogus "comparison of unsigned expression >= 0 is always true" } */ +} + +int test (int x) +{ + if ((long long)x <= 0x123456789ABCLL) + return 1; + else + return 0; +} + |