diff options
Diffstat (limited to 'src/unsafe/unsafe.go')
| -rw-r--r-- | src/unsafe/unsafe.go | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/unsafe/unsafe.go b/src/unsafe/unsafe.go index 5051b3ee9f..2f4212a1ae 100644 --- a/src/unsafe/unsafe.go +++ b/src/unsafe/unsafe.go @@ -239,3 +239,31 @@ func Add(ptr Pointer, len IntegerType) Pointer // At run time, if len is negative, or if ptr is nil and len is not zero, // a run-time panic occurs. func Slice(ptr *ArbitraryType, len IntegerType) []ArbitraryType + +// SliceData returns a pointer to the underlying array of the argument +// slice. +// - If cap(slice) > 0, SliceData returns &slice[:1][0]. +// - If slice == nil, SliceData returns nil. +// - Otherwise, SliceData returns a non-nil pointer to an +// unspecified memory address. +func SliceData(slice []ArbitraryType) *ArbitraryType + +// String returns a string value whose underlying bytes +// start at ptr and whose length is len. +// +// The len argument must be of integer type or an untyped constant. +// A constant len argument must be non-negative and representable by a value of type int; +// if it is an untyped constant it is given type int. +// At run time, if len is negative, or if ptr is nil and len is not zero, +// a run-time panic occurs. +// +// Since Go strings are immutable, the bytes passed to String +// must not be modified afterwards. +func String(ptr *byte, len IntegerType) string + +// StringData returns a pointer to the underlying bytes of str. +// For an empty string the return value is unspecified, and may be nil. +// +// Since Go strings are immutable, the bytes returned by StringData +// must not be modified. +func StringData(str string) *byte |