Use std::string::clear() rather than assign the empty string when

we want to remove the current contents of a string object.

2 files changed, 6 insertions, 6 deletions

diff --git a/src/asn1_tm.cpp b/src/asn1_tm.cpp
index 25b434609..e59b352c7 100644
--- a/src/asn1_tm.cpp
+++ b/src/asn1_tm.cpp
@@ -93,7 +93,7 @@ void X509_Time::set_to(const std::string& time_str)
          {
          if(current != "")
             params.push_back(current);
-         current = "";
+         current.clear();
          }
       }
    if(current != "")
@@ -140,7 +140,7 @@ void X509_Time::set_to(const std::string& t_spec, ASN1_Tag tag)
    for(u32bit j = 0; j != YEAR_SIZE; ++j)
       current += t_spec[j];
    params.push_back(current);
-   current = "";
+   current.clear();
 
    for(u32bit j = YEAR_SIZE; j != t_spec.size() - 1; ++j)
       {
@@ -148,7 +148,7 @@ void X509_Time::set_to(const std::string& t_spec, ASN1_Tag tag)
       if(current.size() == 2)
          {
          params.push_back(current);
-         current = "";
+         current.clear();
          }
       }
 
diff --git a/src/parsing.cpp b/src/parsing.cpp
index 4939cd082..99d4205ea 100644
--- a/src/parsing.cpp
+++ b/src/parsing.cpp
@@ -98,7 +98,7 @@ std::vector<std::string> parse_algorithm_name(const std::string& namex)
             elems.push_back(substring.substr(1));
          else
             elems.push_back(substring);
-         substring = "";
+         substring.clear();
          }
       else
          substring += c;
@@ -125,7 +125,7 @@ std::vector<std::string> split_on(const std::string& str, char delim)
          {
          if(substr != "")
             elems.push_back(substr);
-         substr = "";
+         substr.clear();
          }
       else
          substr += *j;
@@ -155,7 +155,7 @@ std::vector<u32bit> parse_asn1_oid(const std::string& oid)
          if(substring == "")
             throw Invalid_OID(oid);
          oid_elems.push_back(to_u32bit(substring));
-         substring = "";
+         substring.clear();
          }
       else
          substring += c;