Fixed typos in comments, no functional changes.

lib/checkclass.cpp

@@ -837,7 +837,7 @@ void CheckClass::privateFunctions()
     for (std::size_t i = 0; i < classes; ++i) {
         const Scope * scope = symbolDatabase->classAndStructScopes[i];
 
-        // dont check borland classes with properties..
+        // do not check borland classes with properties..
         if (Token::findsimplematch(scope->classStart, "; __property ;", scope->classEnd))
             continue;
 

lib/checkio.cpp

@@ -332,7 +332,7 @@ void CheckIO::invalidScanf()
 
             bool format = false;
 
-            // scan the string backwards, so we dont need to keep states
+            // scan the string backwards, so we do not need to keep states
             const std::string &formatstr(formatToken->str());
             for (unsigned int i = 1; i < formatstr.length(); i++) {
                 if (formatstr[i] == '%')

lib/checkother.cpp

@@ -3493,10 +3493,10 @@ void CheckOther::suspiciousStringCompareError(const Token* tok, const std::strin
 }
 
 //-----------------------------------------------------------------------------
-// Check is a comparision of two variables leads to condition, which is
-// allways true or false.
+// Check is a comparison of two variables leads to condition, which is
+// always true or false.
 // For instance: int a = 1; if(isless(a,a)){...}
-// In this case isless(a,a) evaluates allways to false.
+// In this case isless(a,a) evaluates always to false.
 //
 // Reference:
 // - http://www.cplusplus.com/reference/cmath/

lib/checkother.h

@@ -266,7 +266,7 @@ public:
     /** @brief %Check providing too big sleep time intervals on POSIX systems. */
     void checkSleepTimeInterval();
 
-    /** @brief %Check for using of comparision functions evaluating always to true or false. */
+    /** @brief %Check for using of comparison functions evaluating always to true or false. */
     void checkComparisonFunctionIsAlwaysTrueOrFalse(void);
 
 private:

lib/library.h

@@ -346,7 +346,7 @@ private:
     std::map<std::string, CodeBlock> _executableblocks; // keywords for blocks of executable code
     std::map<std::string, ExportedFunctions> _exporters; // keywords that export variables/functions to libraries (meta-code/macros)
     std::map<std::string, std::list<std::string> > _importers; // keywords that import variables/functions
-    std::map<std::string,std::map<std::string,int> > _reflection; // invokation of reflection
+    std::map<std::string,std::map<std::string,int> > _reflection; // invocation of reflection
 
 
     const ArgumentChecks * getarg(const std::string &functionName, int argnr) const {

lib/mathlib.cpp

@@ -233,7 +233,7 @@ bool MathLib::isInt(const std::string & s)
         ++n;
 
     // if everything goes good, we are at the end of the string and no digits/character
-    // is here --> return true, but if something was found eg. 12E+12AA return false
+    // is here --> return true, but if something was found e.g. 12E+12AA return false
     return (n >= s.length());
 }
 

readme_gui.txt

@@ -17,7 +17,7 @@ Windows:
 - The easy ways are:
 -- download Qt SDK from http://qt-project.org/downloads and use
    QtCreator to build the GUI.
--- Download precompiled libaries for your platform and use your preferred
+-- Download precompiled libraries for your platform and use your preferred
    IDE/environment to build GUI. Be careful to download the correct version of
    library for your compiler!
 - The harder way is to download Qt sources and build Qt. Compiling Qt alone may