diff options
Diffstat (limited to 'absl/strings/ascii.cc')
| -rw-r--r-- | absl/strings/ascii.cc | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/absl/strings/ascii.cc b/absl/strings/ascii.cc index 1e6566e9..df905e05 100644 --- a/absl/strings/ascii.cc +++ b/absl/strings/ascii.cc @@ -19,6 +19,7 @@ #include <string> #include "absl/base/config.h" +#include "absl/base/nullability.h" namespace absl { ABSL_NAMESPACE_BEGIN @@ -174,7 +175,8 @@ constexpr bool AsciiInAZRange(unsigned char c) { } template <bool ToUpper> -constexpr void AsciiStrCaseFold(char* p, char* end) { +constexpr void AsciiStrCaseFold(absl::Nonnull<char*> p, + absl::Nonnull<char*> end) { // The upper- and lowercase versions of ASCII characters differ by only 1 bit. // When we need to flip the case, we can xor with this bit to achieve the // desired result. Note that the choice of 'a' and 'A' here is arbitrary. We @@ -215,17 +217,17 @@ static_assert(ValidateAsciiCasefold() == 0, "error in case conversion"); } // namespace ascii_internal -void AsciiStrToLower(std::string* s) { +void AsciiStrToLower(absl::Nonnull<std::string*> s) { char* p = &(*s)[0]; // Guaranteed to be valid for empty strings return ascii_internal::AsciiStrCaseFold<false>(p, p + s->size()); } -void AsciiStrToUpper(std::string* s) { +void AsciiStrToUpper(absl::Nonnull<std::string*> s) { char* p = &(*s)[0]; // Guaranteed to be valid for empty strings return ascii_internal::AsciiStrCaseFold<true>(p, p + s->size()); } -void RemoveExtraAsciiWhitespace(std::string* str) { +void RemoveExtraAsciiWhitespace(absl::Nonnull<std::string*> str) { auto stripped = StripAsciiWhitespace(*str); if (stripped.empty()) { |