replace std::string::substr() with operations that do not allocate memory

Modify the original string instead of creating a new copy with substr() when it
is not used for anything else afterwards.

1 files changed, 3 insertions, 3 deletions

diff --git a/Tests/RunCMake/GenerateExportHeader/exportheader_test.cpp b/Tests/RunCMake/GenerateExportHeader/exportheader_test.cpp
index ba77679..dcaa4f2 100644
--- a/Tests/RunCMake/GenerateExportHeader/exportheader_test.cpp
+++ b/Tests/RunCMake/GenerateExportHeader/exportheader_test.cpp
@@ -32,14 +32,14 @@ void compare(const char* refName, const char* testName)
     // trailing null to the string that we need to strip before testing for a
     // trailing space.
     if (refLine.size() && refLine[refLine.size() - 1] == 0) {
-      refLine = refLine.substr(0, refLine.size() - 1);
+      refLine.resize(refLine.size() - 1);
     }
     if (testLine.size() && testLine[testLine.size() - 1] == 0) {
-      testLine = testLine.substr(0, testLine.size() - 1);
+      testLine.resize(testLine.size() - 1);
     }
     // The reference files never have trailing spaces:
     if (testLine.size() && testLine[testLine.size() - 1] == ' ') {
-      testLine = testLine.substr(0, testLine.size() - 1);
+      testLine.resize(testLine.size() - 1);
     }
     if (refLine != testLine) {
       std::cout << "Ref and test are not the same:\n  Ref:  \"" << refLine