mq5.0-source.src.share.cclient.basictypes.Double.cpp Maven / Gradle / Ivy
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/*
* @(#)Double.cpp 1.5 06/26/07
*/
#include "Double.hpp"
#include "../debug/DebugUtils.h"
#include "../util/UtilityMacros.h"
#include
/*
* Default constructor.
*/
Double::Double()
{
CHECK_OBJECT_VALIDITY();
this->value = DOUBLE_DEFAULT_VALUE;
this->valueStr = NULL;
}
/*
*
*/
Double::Double(const PRFloat64 valueArg)
{
CHECK_OBJECT_VALIDITY();
this->value = valueArg;
this->valueStr = NULL;
}
/*
*
*/
Double::~Double()
{
CHECK_OBJECT_VALIDITY();
DELETE_ARR( this->valueStr );
}
/*
* Return a pointer to a deep copy of this object.
*/
BasicType *
Double::clone() const
{
CHECK_OBJECT_VALIDITY();
return new Double(this->value);
}
/*
* Set the value of this object to the value parameter.
*/
void
Double::setValue(const PRFloat64 valueArg)
{
CHECK_OBJECT_VALIDITY();
DELETE_ARR( this->valueStr );
this->value = valueArg;
}
/*
* Return the value of this object.
*/
PRFloat64
Double::getValue() const
{
CHECK_OBJECT_VALIDITY();
return this->value;
}
/*
* Return the type of this object.
*/
TypeEnum
Double::getType() const
{
CHECK_OBJECT_VALIDITY();
return DOUBLE_TYPE;
}
/*
* Read the value of the object from the input stream.
*
* Return an error if the read fails.
*/
iMQError
Double::read(IMQDataInputStream * const in)
{
CHECK_OBJECT_VALIDITY();
RETURN_ERROR_IF_NULL( in );
DELETE_ARR( this->valueStr );
RETURN_IF_ERROR( in->readFloat64(&this->value) );
return IMQ_SUCCESS;
}
/*
* Write the value of the object to the output stream.
*
* Return an error if the write fails.
*/
iMQError
Double::write(IMQDataOutputStream * const out) const
{
CHECK_OBJECT_VALIDITY();
RETURN_ERROR_IF_NULL( out );
RETURN_IF_ERROR( out->writeFloat64(this->value) );
return IMQ_SUCCESS;
}
/*
* Print the value of the object to the file.
*
* Return an error if the print fails
*/
iMQError
Double::print(FILE * const file) const
{
CHECK_OBJECT_VALIDITY();
RETURN_ERROR_IF_NULL( file );
PRInt64 bytesWritten = fprintf(file, "%g", (PRFloat64)this->value);
RETURN_ERROR_IF( bytesWritten <= 0, IMQ_FILE_OUTPUT_ERROR );
return IMQ_SUCCESS;
}
/*
*
*/
PRBool
Double::equals(const BasicType * const object) const
{
CHECK_OBJECT_VALIDITY();
return ((object != NULL) &&
(object->getType() == this->getType()) &&
(((Double*)object)->getValue() == this->value));
}
/*
* Returns a 32-bit hash code for this number.
*/
PLHashNumber
Double::hashCode() const
{
CHECK_OBJECT_VALIDITY();
PLHashNumber hashCode = 0;
memcpy((void*)&hashCode,
(void*)&this->value,
MIN( sizeof(hashCode), sizeof(this->value) ));
return hashCode;
}
/*
* Return a char* representation of this object.
*/
const char *
Double::toString()
{
CHECK_OBJECT_VALIDITY();
if (this->valueStr != NULL) {
return this->valueStr;
}
this->valueStr = new char[DOUBLE_MAX_STR_SIZE];
if (this->valueStr == NULL) {
return "";
}
SNPRINTF(this->valueStr, DOUBLE_MAX_STR_SIZE, "%g", (PRFloat64)this->value);
// Just to be safe. snprintf won't automatically null terminate for us.
this->valueStr[DOUBLE_MAX_STR_SIZE-1] = '\0';
return this->valueStr;
}
/*
*
*/
iMQError
Double::getFloat64Value(PRFloat64 * const valueArg) const
{
RETURN_ERROR_IF_NULL( valueArg );
*valueArg = this->value;
return IMQ_SUCCESS;
}
/*
*
*/
iMQError
Double::getStringValue(const char ** const valueArg) const
{
RETURN_ERROR_IF_NULL( valueArg );
*valueArg = ((Double*)this)->toString();
return IMQ_SUCCESS;
}