use startsWith() instead of suboptimal std::string::find() calls

Author: firewave

lib/importproject.cpp

@@ -436,9 +436,9 @@ bool ImportProject::importSln(std::istream &istr, const std::string &path, const
         return false;
     }
 
-    if (line.find("Microsoft Visual Studio Solution File") != 0) {
+    if (!startsWith(line, "Microsoft Visual Studio Solution File")) {
         // Skip BOM
-        if (!std::getline(istr, line) || line.find("Microsoft Visual Studio Solution File") != 0) {
+        if (!std::getline(istr, line) || !startsWith(line, "Microsoft Visual Studio Solution File")) {
             printError("Visual Studio solution file header not found");
             return false;
         }

lib/library.cpp

@@ -1174,7 +1174,7 @@ const Library::Container* Library::detectContainerInternal(const Token* const ty
         if (container.startPattern.empty())
             continue;
 
-        const int offset = (withoutStd && container.startPattern2.find("std :: ") == 0) ? 7 : 0;
+        const int offset = (withoutStd && startsWith(container.startPattern2, "std :: ")) ? 7 : 0;
 
         // If endPattern is undefined, it will always match, but itEndPattern has to be defined.
         if (detect != IteratorOnly && container.endPattern.empty()) {

test/testcmdlineparser.cpp

@@ -28,6 +28,7 @@
 #include "suppressions.h"
 #include "fixture.h"
 #include "timer.h"
+#include "utils.h"
 
 #include <cstdint>
 #include <cstdio>
@@ -272,23 +273,23 @@ class TestCmdlineParser : public TestFixture {
         const char * const argv[] = {"cppcheck"};
         ASSERT(parser->parseFromArgs(1, argv));
         ASSERT_EQUALS(true, parser->getShowHelp());
-        ASSERT(GET_REDIRECT_OUTPUT.find("Cppcheck - A tool for static C/C++ code analysis") == 0);
+        ASSERT(startsWith(GET_REDIRECT_OUTPUT, "Cppcheck - A tool for static C/C++ code analysis"));
     }
 
     void helpshort() {
         REDIRECT;
         const char * const argv[] = {"cppcheck", "-h"};
         ASSERT(parser->parseFromArgs(2, argv));
         ASSERT_EQUALS(true, parser->getShowHelp());
-        ASSERT(GET_REDIRECT_OUTPUT.find("Cppcheck - A tool for static C/C++ code analysis") == 0);
+        ASSERT(startsWith(GET_REDIRECT_OUTPUT, "Cppcheck - A tool for static C/C++ code analysis"));
     }
 
     void helplong() {
         REDIRECT;
         const char * const argv[] = {"cppcheck", "--help"};
         ASSERT(parser->parseFromArgs(2, argv));
         ASSERT_EQUALS(true, parser->getShowHelp());
-        ASSERT(GET_REDIRECT_OUTPUT.find("Cppcheck - A tool for static C/C++ code analysis") == 0);
+        ASSERT(startsWith(GET_REDIRECT_OUTPUT, "Cppcheck - A tool for static C/C++ code analysis"));
     }
 
     void showversion() {
@@ -1594,7 +1595,7 @@ class TestCmdlineParser : public TestFixture {
         const char * const argv[] = {"cppcheck", "--doc"};
         ASSERT(parser->parseFromArgs(2, argv));
         ASSERT(parser->exitAfterPrinting());
-        ASSERT(GET_REDIRECT_OUTPUT.find("## ") == 0);
+        ASSERT(startsWith(GET_REDIRECT_OUTPUT, "## "));
     }
 
     void showtime() {