use size_t for GeneratorExpressionContent::ContentLength to fix some warnings

CMake/Source/cmGeneratorExpressionParser.cxx: In member function ‘void cmGeneratorExpressionParser::ParseGeneratorExpression(std::vector<cmGeneratorExpressionEvaluator*>&)’:
CMake/Source/cmGeneratorExpressionParser.cxx:116:55: warning: conversion to ‘unsigned int’ from ‘long int’ may alter its value [-Wconversion]
CMake/Source/cmGeneratorExpressionParser.cxx:240:39: warning: conversion to ‘int’ from ‘long int’ may alter its value [-Wconversion]

1 files changed, 6 insertions, 6 deletions

diff --git a/Source/cmGeneratorExpressionEvaluator.h b/Source/cmGeneratorExpressionEvaluator.h
index 218abf1..343e18b 100644
--- a/Source/cmGeneratorExpressionEvaluator.h
+++ b/Source/cmGeneratorExpressionEvaluator.h
@@ -63,7 +63,7 @@ private:
 
 struct TextContent : public cmGeneratorExpressionEvaluator
 {
-  TextContent(const char *start, unsigned int length)
+  TextContent(const char *start, size_t length)
     : Content(start), Length(length)
   {
 
@@ -80,25 +80,25 @@ struct TextContent : public cmGeneratorExpressionEvaluator
     return cmGeneratorExpressionEvaluator::Text;
   }
 
-  void Extend(unsigned int length)
+  void Extend(size_t length)
   {
     this->Length += length;
   }
 
-  unsigned int GetLength()
+  size_t GetLength()
   {
     return this->Length;
   }
 
 private:
   const char *Content;
-  unsigned int Length;
+  size_t Length;
 };
 
 //----------------------------------------------------------------------------
 struct GeneratorExpressionContent : public cmGeneratorExpressionEvaluator
 {
-  GeneratorExpressionContent(const char *startContent, unsigned int length);
+  GeneratorExpressionContent(const char *startContent, size_t length);
   void SetIdentifier(std::vector<cmGeneratorExpressionEvaluator*> identifier)
   {
     this->IdentifierChildren = identifier;
@@ -141,7 +141,7 @@ private:
   std::vector<cmGeneratorExpressionEvaluator*> IdentifierChildren;
   std::vector<std::vector<cmGeneratorExpressionEvaluator*> > ParamChildren;
   const char *StartContent;
-  unsigned int ContentLength;
+  size_t ContentLength;
 };
 
 #endif