[BREAKING] Add getDoubleField() and update getFloatField() (#12)

This patch converts `getFloatField()` to return a 32-bit `float` instead of a
64-bit `double` and introduces a new `getDoubleField()` member that can be used
to return the value as a 64-bit `double` (what `getFloatField()` used to do).

Author: EmosewaMC

CppSQLite3.cpp

@@ -481,26 +481,46 @@ long long CppSQLite3Query::getInt64Field(const char* szField, long long nNullVal
 }
 
 
-double CppSQLite3Query::getFloatField(int nField, double fNullValue/*=0.0*/) const
+float CppSQLite3Query::getFloatField(int nField, float fNullValue/*=0.0f*/) const
 {
     if (fieldDataType(nField) == SQLITE_NULL)
     {
         return fNullValue;
     }
     else
     {
-        return sqlite3_column_double(mpVM, nField);
+        return static_cast<float>(sqlite3_column_double(mpVM, nField));
     }
 }
 
 
-double CppSQLite3Query::getFloatField(const char* szField, double fNullValue/*=0.0*/) const
+float CppSQLite3Query::getFloatField(const char* szField, float fNullValue/*=0.0f*/) const
 {
     int nField = fieldIndex(szField);
     return getFloatField(nField, fNullValue);
 }
 
 
+double CppSQLite3Query::getDoubleField(int nField, double dNullValue/*=0.0*/) const
+{
+    if (fieldDataType(nField) == SQLITE_NULL)
+    {
+        return dNullValue;
+    }
+    else
+    {
+        return sqlite3_column_double(mpVM, nField);
+    }
+}
+
+
+double CppSQLite3Query::getDoubleField(const char* szField, double dNullValue/*=0.0*/) const
+{
+    int nField = fieldIndex(szField);
+    return getDoubleField(nField, dNullValue);
+}
+
+
 const char* CppSQLite3Query::getStringField(int nField, const char* szNullValue/*=""*/) const
 {
     if (fieldDataType(nField) == SQLITE_NULL)
@@ -835,26 +855,52 @@ int CppSQLite3Table::getIntField(const char* szField, int nNullValue/*=0*/) cons
 }
 
 
-double CppSQLite3Table::getFloatField(int nField, double fNullValue/*=0.0*/) const
+float CppSQLite3Table::getFloatField(int nField, float fNullValue/*=0.0f*/) const
 {
     if (fieldIsNull(nField))
     {
         return fNullValue;
     }
     else
     {
-        return atof(fieldValue(nField));
+        return static_cast<float>(atof(fieldValue(nField)));
     }
 }
 
 
-double CppSQLite3Table::getFloatField(const char* szField, double fNullValue/*=0.0*/) const
+float CppSQLite3Table::getFloatField(const char* szField, float fNullValue/*=0.0f*/) const
 {
     if (fieldIsNull(szField))
     {
         return fNullValue;
     }
     else
+    {
+        return static_cast<float>(atof(fieldValue(szField)));
+    }
+}
+
+
+double CppSQLite3Table::getDoubleField(int nField, double dNullValue/*=0.0*/) const
+{
+    if (fieldIsNull(nField))
+    {
+        return dNullValue;
+    }
+    else
+    {
+        return atof(fieldValue(nField));
+    }
+}
+
+
+double CppSQLite3Table::getDoubleField(const char* szField, double dNullValue/*=0.0*/) const
+{
+    if (fieldIsNull(szField))
+    {
+        return dNullValue;
+    }
+    else
     {
         return atof(fieldValue(szField));
     }

CppSQLite3.h

@@ -166,8 +166,11 @@ class CppSQLite3Query
     long long getInt64Field(int nField, long long nNullValue=0) const;
     long long getInt64Field(const char* szField, long long nNullValue=0) const;
 
-    double getFloatField(int nField, double fNullValue=0.0) const;
-    double getFloatField(const char* szField, double fNullValue=0.0) const;
+    float getFloatField(int nField, float fNullValue=0.0f) const;
+    float getFloatField(const char* szField, float fNullValue=0.0f) const;
+
+    double getDoubleField(int nField, double dNullValue=0.0) const;
+    double getDoubleField(const char* szField, double dNullValue=0.0) const;
 
     const char* getStringField(int nField, const char* szNullValue="") const;
     const char* getStringField(const char* szField, const char* szNullValue="") const;
@@ -222,8 +225,11 @@ class CppSQLite3Table
     int getIntField(int nField, int nNullValue=0) const;
     int getIntField(const char* szField, int nNullValue=0) const;
 
-    double getFloatField(int nField, double fNullValue=0.0) const;
-    double getFloatField(const char* szField, double fNullValue=0.0) const;
+    float getFloatField(int nField, float fNullValue=0.0f) const;
+    float getFloatField(const char* szField, float fNullValue=0.0f) const;
+
+    double getDoubleField(int nField, double dNullValue=0.0) const;
+    double getDoubleField(const char* szField, double dNullValue=0.0) const;
 
     const char* getStringField(int nField, const char* szNullValue="") const;
     const char* getStringField(const char* szField, const char* szNullValue="") const;