fixed malloc not zero data

Author: DuanKuanJun

sz/src/TightDataPointStorageD.c

@@ -168,6 +168,7 @@ void new_TightDataPointStorageD(TightDataPointStorageD **this,
 {
 	//int i = 0;
 	*this = (TightDataPointStorageD *)malloc(sizeof(TightDataPointStorageD));
+	memset(*this, 0, sizeof(TightDataPointStorageD));
 	(*this)->allSameData = 0;
 	(*this)->realPrecision = realPrecision;
 	(*this)->medianValue = medianValue;

sz/src/TightDataPointStorageF.c

@@ -166,6 +166,7 @@ void new_TightDataPointStorageF(TightDataPointStorageF **this,
 		unsigned char radExpo) {
 
 	*this = (TightDataPointStorageF *)malloc(sizeof(TightDataPointStorageF));
+	memset(*this, 0, sizeof(TightDataPointStorageF));
 	(*this)->allSameData = 0;
 	(*this)->realPrecision = realPrecision;
 	(*this)->medianValue = medianValue;

sz/src/sz_double.c

@@ -270,6 +270,7 @@ size_t dataLength, double realPrecision, size_t *outSize, double valueRangeSize,
 void SZ_compress_args_double_withinRange(unsigned char* newByteData, double *oriData, size_t dataLength, size_t *outSize)
 {
 	TightDataPointStorageD* tdps = (TightDataPointStorageD*) malloc(sizeof(TightDataPointStorageD));
+	memset(tdps, 0, sizeof(TightDataPointStorageD));
 	tdps->leadNumArray = NULL;
 	tdps->residualMidBits = NULL;
 

sz/src/sz_float.c

@@ -261,7 +261,6 @@ bool SZ_compress_args_float_NoCkRngeNoGzip_1D( unsigned char* newByteData, float
 	{
 		return false;
 	}	
-	
 	free_TightDataPointStorageF(tdps);
 	return true;
 }
@@ -270,6 +269,7 @@ bool SZ_compress_args_float_NoCkRngeNoGzip_1D( unsigned char* newByteData, float
 void SZ_compress_args_float_withinRange(unsigned char* newByteData, float *oriData, size_t dataLength, size_t *outSize)
 {
 	TightDataPointStorageF* tdps = (TightDataPointStorageF*) malloc(sizeof(TightDataPointStorageF));
+	memset(tdps, 0, sizeof(TightDataPointStorageF));
 	tdps->leadNumArray = NULL;
 	tdps->residualMidBits = NULL;