diff options
author | Kenneth Heafield <github@kheafield.com> | 2013-09-09 13:43:20 +0400 |
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committer | Kenneth Heafield <github@kheafield.com> | 2013-09-09 13:43:20 +0400 |
commit | 5cca6fafcbf903dc4abcfc86ae83299171633c9d (patch) | |
tree | 70880b6f89feebac9b57312b930127f76fca2d15 /util/string_piece.hh | |
parent | 4c015afb7e704477633b3065c72c03e4c9daf794 (diff) |
KenLM 6f7913cc7ca0f7672c6d899358365f047a742bbb
Mostly fixes from Tetsuo Kiso and Jonathan Graehl
Diffstat (limited to 'util/string_piece.hh')
-rw-r--r-- | util/string_piece.hh | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/util/string_piece.hh b/util/string_piece.hh index 9cf4c7f6d..84431db17 100644 --- a/util/string_piece.hh +++ b/util/string_piece.hh @@ -74,6 +74,12 @@ inline bool operator!=(const StringPiece& x, const StringPiece& y) { #endif // old version of ICU U_NAMESPACE_BEGIN + +inline bool starts_with(const StringPiece& longer, const StringPiece& prefix) { + int longersize = longer.size(), prefixsize = prefix.size(); + return longersize >= prefixsize && std::memcmp(longer.data(), prefix.data(), prefixsize) == 0; +} + #else #include <algorithm> @@ -212,7 +218,7 @@ class StringPiece { StringPiece substr(size_type pos, size_type n = npos) const; static int wordmemcmp(const char* p, const char* p2, size_type N) { - return memcmp(p, p2, N); + return std::memcmp(p, p2, N); } }; @@ -227,6 +233,10 @@ inline bool operator!=(const StringPiece& x, const StringPiece& y) { return !(x == y); } +inline bool starts_with(const StringPiece& longer, const StringPiece& prefix) { + return longer.starts_with(prefix); +} + #endif // HAVE_ICU undefined inline bool operator<(const StringPiece& x, const StringPiece& y) { |