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-rw-r--r--absl/strings/string_view.h13
1 files changed, 12 insertions, 1 deletions
diff --git a/absl/strings/string_view.h b/absl/strings/string_view.h
index 65b1772d..25a4d1ed 100644
--- a/absl/strings/string_view.h
+++ b/absl/strings/string_view.h
@@ -50,6 +50,7 @@ using std::string_view;
#include "absl/base/internal/throw_delegate.h"
#include "absl/base/macros.h"
+#include "absl/base/optimization.h"
#include "absl/base/port.h"
namespace absl {
@@ -334,7 +335,17 @@ class string_view {
//
// Copies the contents of the `string_view` at offset `pos` and length `n`
// into `buf`.
- size_type copy(char* buf, size_type n, size_type pos = 0) const;
+ size_type copy(char* buf, size_type n, size_type pos = 0) const {
+ if (ABSL_PREDICT_FALSE(pos > length_)) {
+ base_internal::ThrowStdOutOfRange("absl::string_view::copy");
+ }
+ size_type rlen = (std::min)(length_ - pos, n);
+ if (rlen > 0) {
+ const char* start = ptr_ + pos;
+ std::copy(start, start + rlen, buf);
+ }
+ return rlen;
+ }
// string_view::substr()
//