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authorVadim Petrochenkov <vadim.petrochenkov@gmail.com>2019-07-27 01:33:01 +0300
committerVadim Petrochenkov <vadim.petrochenkov@gmail.com>2019-07-27 18:56:16 +0300
commit9be35f82c1abf2ecbab489bca9eca138ea648312 (patch)
tree69888506e34af447d9748c0d542de3ba1dd76210 /src/test/ui/wrapping-int-api.rs
parentca9faa52f5ada0054b1fa27d97aedf448afb059b (diff)
downloadrust-9be35f82c1abf2ecbab489bca9eca138ea648312.tar.gz
rust-9be35f82c1abf2ecbab489bca9eca138ea648312.zip
tests: Move run-pass tests without naming conflicts to ui
Diffstat (limited to 'src/test/ui/wrapping-int-api.rs')
-rw-r--r--src/test/ui/wrapping-int-api.rs225
1 files changed, 225 insertions, 0 deletions
diff --git a/src/test/ui/wrapping-int-api.rs b/src/test/ui/wrapping-int-api.rs
new file mode 100644
index 00000000000..2a5baad8b78
--- /dev/null
+++ b/src/test/ui/wrapping-int-api.rs
@@ -0,0 +1,225 @@
+// run-pass
+// Test inherent wrapping_* methods for {i,u}{size,8,16,32,64}.
+
+use std::{i8, i16, i32, i64, isize};
+use std::{u8, u16, u32, u64, usize};
+
+fn main() {
+    assert_eq!(   i8::MAX.wrapping_add(1),    i8::MIN);
+    assert_eq!(  i16::MAX.wrapping_add(1),   i16::MIN);
+    assert_eq!(  i32::MAX.wrapping_add(1),   i32::MIN);
+    assert_eq!(  i64::MAX.wrapping_add(1),   i64::MIN);
+    assert_eq!(isize::MAX.wrapping_add(1), isize::MIN);
+
+    assert_eq!(   i8::MIN.wrapping_sub(1),    i8::MAX);
+    assert_eq!(  i16::MIN.wrapping_sub(1),   i16::MAX);
+    assert_eq!(  i32::MIN.wrapping_sub(1),   i32::MAX);
+    assert_eq!(  i64::MIN.wrapping_sub(1),   i64::MAX);
+    assert_eq!(isize::MIN.wrapping_sub(1), isize::MAX);
+
+    assert_eq!(   u8::MAX.wrapping_add(1),    u8::MIN);
+    assert_eq!(  u16::MAX.wrapping_add(1),   u16::MIN);
+    assert_eq!(  u32::MAX.wrapping_add(1),   u32::MIN);
+    assert_eq!(  u64::MAX.wrapping_add(1),   u64::MIN);
+    assert_eq!(usize::MAX.wrapping_add(1), usize::MIN);
+
+    assert_eq!(   u8::MIN.wrapping_sub(1),    u8::MAX);
+    assert_eq!(  u16::MIN.wrapping_sub(1),   u16::MAX);
+    assert_eq!(  u32::MIN.wrapping_sub(1),   u32::MAX);
+    assert_eq!(  u64::MIN.wrapping_sub(1),   u64::MAX);
+    assert_eq!(usize::MIN.wrapping_sub(1), usize::MAX);
+
+    assert_eq!((0xfe_u8 as i8).wrapping_mul(16),
+               (0xe0_u8 as i8));
+    assert_eq!((0xfedc_u16 as i16).wrapping_mul(16),
+               (0xedc0_u16 as i16));
+    assert_eq!((0xfedc_ba98_u32 as i32).wrapping_mul(16),
+               (0xedcb_a980_u32 as i32));
+    assert_eq!((0xfedc_ba98_7654_3217_u64 as i64).wrapping_mul(16),
+               (0xedcb_a987_6543_2170_u64 as i64));
+
+    match () {
+        #[cfg(target_pointer_width = "32")]
+        () => {
+            assert_eq!((0xfedc_ba98_u32 as isize).wrapping_mul(16),
+                       (0xedcb_a980_u32 as isize));
+        }
+        #[cfg(target_pointer_width = "64")]
+        () => {
+            assert_eq!((0xfedc_ba98_7654_3217_u64 as isize).wrapping_mul(16),
+                       (0xedcb_a987_6543_2170_u64 as isize));
+        }
+    }
+
+    assert_eq!((0xfe as u8).wrapping_mul(16),
+               (0xe0 as u8));
+    assert_eq!((0xfedc as u16).wrapping_mul(16),
+               (0xedc0 as u16));
+    assert_eq!((0xfedc_ba98 as u32).wrapping_mul(16),
+               (0xedcb_a980 as u32));
+    assert_eq!((0xfedc_ba98_7654_3217 as u64).wrapping_mul(16),
+               (0xedcb_a987_6543_2170 as u64));
+
+    match () {
+        #[cfg(target_pointer_width = "32")]
+        () => {
+            assert_eq!((0xfedc_ba98 as usize).wrapping_mul(16),
+                       (0xedcb_a980 as usize));
+        }
+        #[cfg(target_pointer_width = "64")]
+        () => {
+            assert_eq!((0xfedc_ba98_7654_3217 as usize).wrapping_mul(16),
+                       (0xedcb_a987_6543_2170 as usize));
+        }
+    }
+
+    macro_rules! check_mul_no_wrap {
+        ($e:expr, $f:expr) => { assert_eq!(($e).wrapping_mul($f), ($e) * $f); }
+    }
+    macro_rules! check_mul_wraps {
+        ($e:expr, $f:expr) => { assert_eq!(($e).wrapping_mul($f), $e); }
+    }
+
+    check_mul_no_wrap!(0xfe_u8 as i8, -1);
+    check_mul_no_wrap!(0xfedc_u16 as i16, -1);
+    check_mul_no_wrap!(0xfedc_ba98_u32 as i32, -1);
+    check_mul_no_wrap!(0xfedc_ba98_7654_3217_u64 as i64, -1);
+    check_mul_no_wrap!(0xfedc_ba98_7654_3217_u64 as u64 as isize, -1);
+
+    check_mul_no_wrap!(0xfe_u8 as i8, -2);
+    check_mul_no_wrap!(0xfedc_u16 as i16, -2);
+    check_mul_no_wrap!(0xfedc_ba98_u32 as i32, -2);
+    check_mul_no_wrap!(0xfedc_ba98_7654_3217_u64 as i64, -2);
+    check_mul_no_wrap!(0xfedc_ba98_fedc_ba98_u64 as u64 as isize, -2);
+
+    check_mul_no_wrap!(0xfe_u8 as i8, 2);
+    check_mul_no_wrap!(0xfedc_u16 as i16, 2);
+    check_mul_no_wrap!(0xfedc_ba98_u32 as i32, 2);
+    check_mul_no_wrap!(0xfedc_ba98_7654_3217_u64 as i64, 2);
+    check_mul_no_wrap!(0xfedc_ba98_fedc_ba98_u64 as u64 as isize, 2);
+
+    check_mul_wraps!(0x80_u8 as i8, -1);
+    check_mul_wraps!(0x8000_u16 as i16, -1);
+    check_mul_wraps!(0x8000_0000_u32 as i32, -1);
+    check_mul_wraps!(0x8000_0000_0000_0000_u64 as i64, -1);
+    match () {
+        #[cfg(target_pointer_width = "32")]
+        () => {
+            check_mul_wraps!(0x8000_0000_u32 as isize, -1);
+        }
+        #[cfg(target_pointer_width = "64")]
+        () => {
+            check_mul_wraps!(0x8000_0000_0000_0000_u64 as isize, -1);
+        }
+    }
+
+    macro_rules! check_div_no_wrap {
+        ($e:expr, $f:expr) => { assert_eq!(($e).wrapping_div($f), ($e) / $f); }
+    }
+    macro_rules! check_div_wraps {
+        ($e:expr, $f:expr) => { assert_eq!(($e).wrapping_div($f), $e); }
+    }
+
+    check_div_no_wrap!(0xfe_u8 as i8, -1);
+    check_div_no_wrap!(0xfedc_u16 as i16, -1);
+    check_div_no_wrap!(0xfedc_ba98_u32 as i32, -1);
+    check_div_no_wrap!(0xfedc_ba98_7654_3217_u64 as i64, -1);
+    check_div_no_wrap!(0xfedc_ba98_7654_3217_u64 as u64 as isize, -1);
+
+    check_div_no_wrap!(0xfe_u8 as i8, -2);
+    check_div_no_wrap!(0xfedc_u16 as i16, -2);
+    check_div_no_wrap!(0xfedc_ba98_u32 as i32, -2);
+    check_div_no_wrap!(0xfedc_ba98_7654_3217_u64 as i64, -2);
+    check_div_no_wrap!(0xfedc_ba98_7654_3217_u64 as u64 as isize, -2);
+
+    check_div_no_wrap!(0xfe_u8 as i8, 2);
+    check_div_no_wrap!(0xfedc_u16 as i16, 2);
+    check_div_no_wrap!(0xfedc_ba98_u32 as i32, 2);
+    check_div_no_wrap!(0xfedc_ba98_7654_3217_u64 as i64, 2);
+    check_div_no_wrap!(0xfedc_ba98_7654_3217_u64 as u64 as isize, 2);
+
+    check_div_wraps!(-128 as i8, -1);
+    check_div_wraps!(0x8000_u16 as i16, -1);
+    check_div_wraps!(0x8000_0000_u32 as i32, -1);
+    check_div_wraps!(0x8000_0000_0000_0000_u64 as i64, -1);
+    match () {
+        #[cfg(target_pointer_width = "32")]
+        () => {
+            check_div_wraps!(0x8000_0000_u32 as isize, -1);
+        }
+        #[cfg(target_pointer_width = "64")]
+        () => {
+            check_div_wraps!(0x8000_0000_0000_0000_u64 as isize, -1);
+        }
+    }
+
+
+    macro_rules! check_rem_no_wrap {
+        ($e:expr, $f:expr) => { assert_eq!(($e).wrapping_rem($f), ($e) % $f); }
+    }
+    macro_rules! check_rem_wraps {
+        ($e:expr, $f:expr) => { assert_eq!(($e).wrapping_rem($f), 0); }
+    }
+
+    check_rem_no_wrap!(0xfe_u8 as i8, -1);
+    check_rem_no_wrap!(0xfedc_u16 as i16, -1);
+    check_rem_no_wrap!(0xfedc_ba98_u32 as i32, -1);
+    check_rem_no_wrap!(0xfedc_ba98_7654_3217_u64 as i64, -1);
+    check_rem_no_wrap!(0xfedc_ba98_7654_3217_u64 as u64 as isize, -1);
+
+    check_rem_no_wrap!(0xfe_u8 as i8, -2);
+    check_rem_no_wrap!(0xfedc_u16 as i16, -2);
+    check_rem_no_wrap!(0xfedc_ba98_u32 as i32, -2);
+    check_rem_no_wrap!(0xfedc_ba98_7654_3217_u64 as i64, -2);
+    check_rem_no_wrap!(0xfedc_ba98_7654_3217_u64 as u64 as isize, -2);
+
+    check_rem_no_wrap!(0xfe_u8 as i8, 2);
+    check_rem_no_wrap!(0xfedc_u16 as i16, 2);
+    check_rem_no_wrap!(0xfedc_ba98_u32 as i32, 2);
+    check_rem_no_wrap!(0xfedc_ba98_7654_3217_u64 as i64, 2);
+    check_rem_no_wrap!(0xfedc_ba98_7654_3217_u64 as u64 as isize, 2);
+
+    check_rem_wraps!(0x80_u8 as i8, -1);
+    check_rem_wraps!(0x8000_u16 as i16, -1);
+    check_rem_wraps!(0x8000_0000_u32 as i32, -1);
+    check_rem_wraps!(0x8000_0000_0000_0000_u64 as i64, -1);
+    match () {
+        #[cfg(target_pointer_width = "32")]
+        () => {
+            check_rem_wraps!(0x8000_0000_u32 as isize, -1);
+        }
+        #[cfg(target_pointer_width = "64")]
+        () => {
+            check_rem_wraps!(0x8000_0000_0000_0000_u64 as isize, -1);
+        }
+    }
+
+    macro_rules! check_neg_no_wrap {
+        ($e:expr) => { assert_eq!(($e).wrapping_neg(), -($e)); }
+    }
+    macro_rules! check_neg_wraps {
+        ($e:expr) => { assert_eq!(($e).wrapping_neg(),  ($e)); }
+    }
+
+    check_neg_no_wrap!(0xfe_u8 as i8);
+    check_neg_no_wrap!(0xfedc_u16 as i16);
+    check_neg_no_wrap!(0xfedc_ba98_u32 as i32);
+    check_neg_no_wrap!(0xfedc_ba98_7654_3217_u64 as i64);
+    check_neg_no_wrap!(0xfedc_ba98_7654_3217_u64 as u64 as isize);
+
+    check_neg_wraps!(0x80_u8 as i8);
+    check_neg_wraps!(0x8000_u16 as i16);
+    check_neg_wraps!(0x8000_0000_u32 as i32);
+    check_neg_wraps!(0x8000_0000_0000_0000_u64 as i64);
+    match () {
+        #[cfg(target_pointer_width = "32")]
+        () => {
+            check_neg_wraps!(0x8000_0000_u32 as isize);
+        }
+        #[cfg(target_pointer_width = "64")]
+        () => {
+            check_neg_wraps!(0x8000_0000_0000_0000_u64 as isize);
+        }
+    }
+
+}