A few portability fixes and one stupid string error (mine). Closes Issue 1082.

- remove some uses of floating min/max fns: use the same integer code as java
- Generalize counted pointers to compare against pointers instead of just integer 0
- Careless string error I added when porting some java code

git-svn-id: https://zxing.googlecode.com/svn/trunk@2054 59b500cc-1b3d-0410-9834-0bbf25fbcc57

cpp/core/src/zxing/common/CharacterSetECI.cpp

@@ -16,6 +16,7 @@
  */
 
 #include <zxing/common/CharacterSetECI.h>
+#include <sstream>
 #include <zxing/common/IllegalArgumentException.h>
 
 using std::string;
@@ -77,7 +78,9 @@ void CharacterSetECI::addCharacterSet(int value, char const* const* encodingName
 
 CharacterSetECI* CharacterSetECI::getCharacterSetECIByValue(int value) {
   if (value < 0 || value >= 900) {
-    throw IllegalArgumentException("Bad ECI value: " + value);
+    std::ostringstream oss;
+    oss << "Bad ECI value: " << value;
+    throw IllegalArgumentException(oss.str().c_str());
   }
   return VALUE_TO_ECI[value];
 }

cpp/core/src/zxing/common/Counted.h

@@ -1,10 +1,8 @@
+// -*- mode:c++; tab-width:2; indent-tabs-mode:nil; c-basic-offset:2 -*-
 #ifndef __COUNTED_H__
 #define __COUNTED_H__
 
 /*
- *  Counted.h
- *  zxing
- *
  *  Copyright 2010 ZXing authors All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -177,8 +175,8 @@ public:
     return object_;
   }
 
-  bool operator==(const int x) {
-    return x == 0 ? object_ == 0 : false;
+  bool operator==(const T* that) {
+    return object_ == that;
   }
   bool operator==(const Ref &other) const {
     return object_ == other.object_ || *object_ == *(other.object_);
@@ -188,8 +186,8 @@ public:
     return object_ == other.object_ || *object_ == *(other.object_);
   }
 
-  bool operator!=(const int x) {
-    return x == 0 ? object_ != 0 : true;
+  bool operator!=(const T* that) {
+    return !(*this == that);
   }
 
   bool empty() const {

cpp/core/src/zxing/common/ECI.cpp

@@ -16,6 +16,7 @@
  */
 
 #include <zxing/common/ECI.h>
+#include <sstream>
 #include <zxing/common/CharacterSetECI.h>
 #include <zxing/common/IllegalArgumentException.h>
 
@@ -30,7 +31,9 @@ int ECI::getValue() const {
 
 ECI* ECI::getECIByValue(int value) {
   if (value < 0 || value > 999999) {
-    throw IllegalArgumentException("Bad ECI value: " + value);
+    std::ostringstream oss;
+    oss << "Bad ECI value: " << value;
+    throw IllegalArgumentException(oss.str().c_str());
   }
   if (value < 900) { // Character set ECIs use 000000 - 000899
     return CharacterSetECI::getCharacterSetECIByValue(value);

cpp/core/src/zxing/oned/Code128Reader.cpp

@@ -1,7 +1,5 @@
+// -*- mode:c++; tab-width:2; indent-tabs-mode:nil; c-basic-offset:2 -*-
 /*
- *  Code128Reader.cpp
- *  ZXing
- *
  *  Copyright 2010 ZXing authors All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -178,7 +176,7 @@ namespace zxing {
 						}
 						if (bestMatch >= 0) {
 							// Look for whitespace before start pattern, >= 50% of width of start pattern
-							if (row->isRange(fmaxl(0, patternStart - (i - patternStart) / 2), patternStart,
+              if (row->isRange(std::max(0, patternStart - (i - patternStart) / 2), patternStart,
 							    false)) {
 								int* resultValue = new int[3];
 								resultValue[0] = patternStart;
@@ -430,7 +428,9 @@ namespace zxing {
         while (nextStart < width && row->get(nextStart)) {
           nextStart++;
         }
-        if (!row->isRange(nextStart, fminl(width, nextStart + (nextStart - lastStart) / 2), false)) {
+        if (!row->isRange(nextStart,
+                          std::min(row->getSize(), nextStart + (nextStart - lastStart) / 2),
+                          false)) {
           throw ReaderException("");
         }
 

cpp/core/src/zxing/oned/Code39Reader.cpp

@@ -1,7 +1,5 @@
+// -*- mode:c++; tab-width:2; indent-tabs-mode:nil; c-basic-offset:2 -*-
 /*
- *  Code39Reader.cpp
- *  ZXing
- *
  *  Copyright 2010 ZXing authors All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -209,9 +207,7 @@ namespace oned {
           if (toNarrowWidePattern(counters, countersLen) == ASTERISK_ENCODING) {
             // Look for whitespace before start pattern, >= 50% of width of
             // start pattern.
-            long double longPatternOffset =
-              fmaxl(0, patternStart - (i - patternStart) / 2);
-            if (row->isRange(longPatternOffset, patternStart, false)) {
+            if (row->isRange(std::max(0, patternStart - ((i - patternStart) >> 1)), patternStart, false)) {
               int* resultValue = new int[2];
               resultValue[0] = patternStart;
               resultValue[1] = i;