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-rw-r--r--src/lib/util/corestr.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/src/lib/util/corestr.h b/src/lib/util/corestr.h
index d31c1e5f8df..f4d8d7bed09 100644
--- a/src/lib/util/corestr.h
+++ b/src/lib/util/corestr.h
@@ -66,10 +66,10 @@ int strcatvprintf(std::string &str, const char *format, va_list args);
void strdelchr(std::string& str, char chr);
void strreplacechr(std::string& str, char ch, char newch);
-std::string strtrimspace(std::string& str);
-std::string strtrimrightspace(std::string& str);
-std::string strmakeupper(std::string& str);
-std::string strmakelower(std::string& str);
+std::string &strtrimspace(std::string& str);
+std::string &strtrimrightspace(std::string& str);
+std::string &strmakeupper(std::string& str);
+std::string &strmakelower(std::string& str);
int strreplace(std::string &str, const std::string& search, const std::string& replace);
#endif /* __CORESTR_H__ */