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Diffstat (limited to '')
| -rw-r--r-- | test/intcvt.go | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/test/intcvt.go b/test/intcvt.go new file mode 100644 index 0000000..3920528 --- /dev/null +++ b/test/intcvt.go @@ -0,0 +1,181 @@ +// run + +// Copyright 2009 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Test implicit and explicit conversions of constants. + +package main + +const ( + ci8 = -1 << 7 + ci16 = -1<<15 + 100 + ci32 = -1<<31 + 100000 + ci64 = -1<<63 + 10000000001 + + cu8 = 1<<8 - 1 + cu16 = 1<<16 - 1234 + cu32 = 1<<32 - 1234567 + cu64 = 1<<64 - 1234567890123 + + cf32 = 1e8 + 0.5 + cf64 = -1e8 + 0.5 +) + +var ( + i8 int8 = ci8 + i16 int16 = ci16 + i32 int32 = ci32 + i64 int64 = ci64 + + u8 uint8 = cu8 + u16 uint16 = cu16 + u32 uint32 = cu32 + u64 uint64 = cu64 + + // f32 float32 = 1e8 + 0.5 + // f64 float64 = -1e8 + 0.5 +) + +func chki8(i, v int8) { + if i != v { + println(i, "!=", v) + panic("fail") + } +} +func chki16(i, v int16) { + if i != v { + println(i, "!=", v) + panic("fail") + } +} +func chki32(i, v int32) { + if i != v { + println(i, "!=", v) + panic("fail") + } +} +func chki64(i, v int64) { + if i != v { + println(i, "!=", v) + panic("fail") + } +} +func chku8(i, v uint8) { + if i != v { + println(i, "!=", v) + panic("fail") + } +} +func chku16(i, v uint16) { + if i != v { + println(i, "!=", v) + panic("fail") + } +} +func chku32(i, v uint32) { + if i != v { + println(i, "!=", v) + panic("fail") + } +} +func chku64(i, v uint64) { + if i != v { + println(i, "!=", v) + panic("fail") + } +} +//func chkf32(f, v float32) { if f != v { println(f, "!=", v); panic("fail") } } +//func chkf64(f, v float64) { if f != v { println(f, "!=", v); panic("fail") } } + +func main() { + chki8(int8(i8), ci8&0xff-1<<8) + chki8(int8(i16), ci16&0xff) + chki8(int8(i32), ci32&0xff-1<<8) + chki8(int8(i64), ci64&0xff) + chki8(int8(u8), cu8&0xff-1<<8) + chki8(int8(u16), cu16&0xff) + chki8(int8(u32), cu32&0xff) + chki8(int8(u64), cu64&0xff) + // chki8(int8(f32), 0) + // chki8(int8(f64), 0) + + chki16(int16(i8), ci8&0xffff-1<<16) + chki16(int16(i16), ci16&0xffff-1<<16) + chki16(int16(i32), ci32&0xffff-1<<16) + chki16(int16(i64), ci64&0xffff-1<<16) + chki16(int16(u8), cu8&0xffff) + chki16(int16(u16), cu16&0xffff-1<<16) + chki16(int16(u32), cu32&0xffff) + chki16(int16(u64), cu64&0xffff-1<<16) + // chki16(int16(f32), 0) + // chki16(int16(f64), 0) + + chki32(int32(i8), ci8&0xffffffff-1<<32) + chki32(int32(i16), ci16&0xffffffff-1<<32) + chki32(int32(i32), ci32&0xffffffff-1<<32) + chki32(int32(i64), ci64&0xffffffff) + chki32(int32(u8), cu8&0xffffffff) + chki32(int32(u16), cu16&0xffffffff) + chki32(int32(u32), cu32&0xffffffff-1<<32) + chki32(int32(u64), cu64&0xffffffff-1<<32) + // chki32(int32(f32), 0) + // chki32(int32(f64), 0) + + chki64(int64(i8), ci8&0xffffffffffffffff-1<<64) + chki64(int64(i16), ci16&0xffffffffffffffff-1<<64) + chki64(int64(i32), ci32&0xffffffffffffffff-1<<64) + chki64(int64(i64), ci64&0xffffffffffffffff-1<<64) + chki64(int64(u8), cu8&0xffffffffffffffff) + chki64(int64(u16), cu16&0xffffffffffffffff) + chki64(int64(u32), cu32&0xffffffffffffffff) + chki64(int64(u64), cu64&0xffffffffffffffff-1<<64) + // chki64(int64(f32), 0) + // chki64(int64(f64), 0) + + + chku8(uint8(i8), ci8&0xff) + chku8(uint8(i16), ci16&0xff) + chku8(uint8(i32), ci32&0xff) + chku8(uint8(i64), ci64&0xff) + chku8(uint8(u8), cu8&0xff) + chku8(uint8(u16), cu16&0xff) + chku8(uint8(u32), cu32&0xff) + chku8(uint8(u64), cu64&0xff) + // chku8(uint8(f32), 0) + // chku8(uint8(f64), 0) + + chku16(uint16(i8), ci8&0xffff) + chku16(uint16(i16), ci16&0xffff) + chku16(uint16(i32), ci32&0xffff) + chku16(uint16(i64), ci64&0xffff) + chku16(uint16(u8), cu8&0xffff) + chku16(uint16(u16), cu16&0xffff) + chku16(uint16(u32), cu32&0xffff) + chku16(uint16(u64), cu64&0xffff) + // chku16(uint16(f32), 0) + // chku16(uint16(f64), 0) + + chku32(uint32(i8), ci8&0xffffffff) + chku32(uint32(i16), ci16&0xffffffff) + chku32(uint32(i32), ci32&0xffffffff) + chku32(uint32(i64), ci64&0xffffffff) + chku32(uint32(u8), cu8&0xffffffff) + chku32(uint32(u16), cu16&0xffffffff) + chku32(uint32(u32), cu32&0xffffffff) + chku32(uint32(u64), cu64&0xffffffff) + // chku32(uint32(f32), 0) + // chku32(uint32(f64), 0) + + chku64(uint64(i8), ci8&0xffffffffffffffff) + chku64(uint64(i16), ci16&0xffffffffffffffff) + chku64(uint64(i32), ci32&0xffffffffffffffff) + chku64(uint64(i64), ci64&0xffffffffffffffff) + chku64(uint64(u8), cu8&0xffffffffffffffff) + chku64(uint64(u16), cu16&0xffffffffffffffff) + chku64(uint64(u32), cu32&0xffffffffffffffff) + chku64(uint64(u64), cu64&0xffffffffffffffff) + // chku64(uint64(f32), 0) + // chku64(uint64(f64), 0) +} |