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authorChris Dyer <cdyer@allegro.clab.cs.cmu.edu>2014-01-28 00:18:37 -0500
committerChris Dyer <cdyer@allegro.clab.cs.cmu.edu>2014-01-28 00:18:37 -0500
commit0ee2b44c5c0981358ade9ddab1d083bbe1de5daf (patch)
tree2dc8d9b9efb24b3a3b5c2bcaf0b55df30743d151 /klm/util/string_piece.hh
parent2ac0704a463d45f0bfe23184a1ea9950d60fd546 (diff)
parent783c57b2d3312738ddcf992ac55ff750afe7cb47 (diff)
Merge branch 'master' of github.com:redpony/cdec
Diffstat (limited to 'klm/util/string_piece.hh')
-rw-r--r--klm/util/string_piece.hh12
1 files changed, 11 insertions, 1 deletions
diff --git a/klm/util/string_piece.hh b/klm/util/string_piece.hh
index 9cf4c7f6..84431db1 100644
--- a/klm/util/string_piece.hh
+++ b/klm/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) {