diff --git a/src/ioc/bpt/makeBpt.c b/src/ioc/bpt/makeBpt.c
index bdf03ffe1..9ea334362 100644
--- a/src/ioc/bpt/makeBpt.c
+++ b/src/ioc/bpt/makeBpt.c
@@ -87,7 +87,8 @@ int main(int argc, char **argv)
     dataList	*pnext;
     double	*pdata;
     long	ndata;
-    int		nBreak,len,n;
+    int		nBreak,n;
+    size_t  len;
     char	*outFilename;
     char	*pext;
     FILE	*outFile;
diff --git a/src/ioc/db/dbBkpt.c b/src/ioc/db/dbBkpt.c
index 1abc4eb2d..dba5136b9 100644
--- a/src/ioc/db/dbBkpt.c
+++ b/src/ioc/db/dbBkpt.c
@@ -818,7 +818,7 @@ void dbPrint(dbCommon *precord )
 long dbp(const char *record_name, int interest_level)
 {
   struct LS_LIST *pnode;
-  struct dbCommon *precord;
+  struct dbCommon *precord = NULL;
   int status;
 
   epicsMutexMustLock(bkpt_stack_sem);
diff --git a/src/ioc/db/dbCa.c b/src/ioc/db/dbCa.c
index fb421af1a..e329b4323 100644
--- a/src/ioc/db/dbCa.c
+++ b/src/ioc/db/dbCa.c
@@ -300,7 +300,7 @@ long dbCaGetLink(struct link *plink,short dbrType, void *pdest,
         assert(pca->pgetNative);
         status = fConvert(pca->pgetNative, pdest, 0);
     } else {
-        unsigned long ntoget = *nelements;
+        long ntoget = *nelements;
         struct dbAddr dbAddr;
         long (*aConvert)(struct dbAddr *paddr, void *to, long nreq, long nto, long off);
 
diff --git a/src/ioc/db/dbConvert.c b/src/ioc/db/dbConvert.c
index 303c1e1a8..2f8f89347 100644
--- a/src/ioc/db/dbConvert.c
+++ b/src/ioc/db/dbConvert.c
@@ -839,12 +839,12 @@ static long getShortChar(
     short *psrc=(short *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pbuffer = *psrc;
+    *pbuffer = (char)*psrc;
 	return(0);
     }
     psrc += offset;
     while (nRequest) {
-	*pbuffer++ = *psrc++;
+    *pbuffer++ = (char)*psrc++;
 	if(++offset==no_elements) psrc=(short *)paddr->pfield;
 	nRequest--;
     }
@@ -859,12 +859,12 @@ static long getShortUchar(
     short *psrc=(short *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pbuffer = *psrc;
+    *pbuffer = (unsigned char)*psrc;
 	return(0);
     }
     psrc += offset;
     while (nRequest) {
-	*pbuffer++ = *psrc++;
+    *pbuffer++ = (unsigned char)*psrc++;
 	if(++offset==no_elements) psrc=(short *)paddr->pfield;
 	nRequest--;
     }
@@ -1042,12 +1042,12 @@ static long getUshortChar(
     unsigned short *psrc=(unsigned short *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pbuffer = *psrc;
+    *pbuffer = (char)*psrc;
 	return(0);
     }
     psrc += offset;
     while (nRequest) {
-	*pbuffer++ = *psrc++;
+    *pbuffer++ = (char)*psrc++;
 	if(++offset==no_elements) psrc=(unsigned short *)paddr->pfield;
 	nRequest--;
     }
@@ -1062,12 +1062,12 @@ static long getUshortUchar(
     unsigned short *psrc=(unsigned short *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pbuffer = *psrc;
+    *pbuffer = (unsigned char)*psrc;
 	return(0);
     }
     psrc += offset;
     while (nRequest) {
-	*pbuffer++ = *psrc++;
+    *pbuffer++ = (unsigned char)*psrc++;
 	if(++offset==no_elements) psrc=(unsigned short *)paddr->pfield;
 	nRequest--;
     }
@@ -1365,12 +1365,12 @@ static long getLongFloat(
     epicsInt32 *psrc=(epicsInt32 *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pbuffer = *psrc;
+    *pbuffer = (float)*psrc;
 	return(0);
     }
     psrc += offset;
     while (nRequest) {
-	*pbuffer++ = *psrc++;
+    *pbuffer++ = (float)*psrc++;
 	if(++offset==no_elements) psrc=(epicsInt32 *)paddr->pfield;
 	nRequest--;
     }
@@ -1569,12 +1569,12 @@ static long getUlongFloat(
     epicsUInt32 *psrc=(epicsUInt32 *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pbuffer = *psrc;
+    *pbuffer = (float)*psrc;
 	return(0);
     }
     psrc += offset;
     while (nRequest) {
-	*pbuffer++ = *psrc++;
+    *pbuffer++ = (float)*psrc++;
 	if(++offset==no_elements) psrc=(epicsUInt32 *)paddr->pfield;
 	nRequest--;
     }
@@ -1659,12 +1659,12 @@ static long getFloatChar(
     float *psrc=(float *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pbuffer = *psrc;
+    *pbuffer = (char)*psrc;
 	return(0);
     }
     psrc += offset;
     while (nRequest) {
-	*pbuffer++ = *psrc++;
+    *pbuffer++ = (char)*psrc++;
 	if(++offset==no_elements) psrc=(float *)paddr->pfield;
 	nRequest--;
     }
@@ -1679,12 +1679,12 @@ static long getFloatUchar(
     float *psrc=(float *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pbuffer = *psrc;
+    *pbuffer = (unsigned char)*psrc;
 	return(0);
     }
     psrc += offset;
     while (nRequest) {
-	*pbuffer++ = *psrc++;
+    *pbuffer++ = (unsigned char)*psrc++;
 	if(++offset==no_elements) psrc=(float *)paddr->pfield;
 	nRequest--;
     }
@@ -1699,12 +1699,12 @@ static long getFloatShort(
     float *psrc=(float *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pbuffer = *psrc;
+    *pbuffer = (short)*psrc;
 	return(0);
     }
     psrc += offset;
     while (nRequest) {
-	*pbuffer++ = *psrc++;
+    *pbuffer++ = (short)*psrc++;
 	if(++offset==no_elements) psrc=(float *)paddr->pfield;
 	nRequest--;
     }
@@ -1719,12 +1719,12 @@ static long getFloatUshort(
     float *psrc=(float *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pbuffer = *psrc;
+    *pbuffer = (unsigned short)*psrc;
 	return(0);
     }
     psrc += offset;
     while (nRequest) {
-	*pbuffer++ = *psrc++;
+    *pbuffer++ = (unsigned short)*psrc++;
 	if(++offset==no_elements) psrc=(float *)paddr->pfield;
 	nRequest--;
     }
@@ -1739,12 +1739,12 @@ static long getFloatLong(
     float *psrc=(float *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pbuffer = *psrc;
+    *pbuffer = (epicsInt32)*psrc;
 	return(0);
     }
     psrc += offset;
     while (nRequest) {
-	*pbuffer++ = *psrc++;
+    *pbuffer++ = (epicsInt32)*psrc++;
 	if(++offset==no_elements) psrc=(float *)paddr->pfield;
 	nRequest--;
     }
@@ -1759,12 +1759,12 @@ static long getFloatUlong(
     float *psrc=(float *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pbuffer = *psrc;
+    *pbuffer = (epicsUInt32)*psrc;
 	return(0);
     }
     psrc += offset;
     while (nRequest) {
-	*pbuffer++ = *psrc++;
+    *pbuffer++ = (epicsUInt32)*psrc++;
 	if(++offset==no_elements) psrc=(float *)paddr->pfield;
 	nRequest--;
     }
@@ -1819,12 +1819,12 @@ static long getFloatEnum(
     float *psrc=(float *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pbuffer = *psrc;
+    *pbuffer = (epicsEnum16)*psrc;
 	return(0);
     }
     psrc += offset;
     while (nRequest) {
-	*pbuffer++ = *psrc++;
+    *pbuffer++ = (epicsEnum16)*psrc++;
 	if(++offset==no_elements) psrc=(float *)paddr->pfield;
 	nRequest--;
     }
@@ -1869,12 +1869,12 @@ static long getDoubleChar(
     double *psrc=(double *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pbuffer = *psrc;
+    *pbuffer = (char)*psrc;
 	return(0);
     }
     psrc += offset;
     while (nRequest) {
-	*pbuffer++ = *psrc++;
+    *pbuffer++ = (char)*psrc++;
 	if(++offset==no_elements) psrc=(double *)paddr->pfield;
 	nRequest--;
     }
@@ -1889,12 +1889,12 @@ static long getDoubleUchar(
     double *psrc=(double *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pbuffer = *psrc;
+    *pbuffer = (unsigned char)*psrc;
 	return(0);
     }
     psrc += offset;
     while (nRequest) {
-	*pbuffer++ = *psrc++;
+    *pbuffer++ = (unsigned char)*psrc++;
 	if(++offset==no_elements) psrc=(double *)paddr->pfield;
 	nRequest--;
     }
@@ -1909,12 +1909,12 @@ static long getDoubleShort(
     double *psrc=(double *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pbuffer = *psrc;
+    *pbuffer = (short)*psrc;
 	return(0);
     }
     psrc += offset;
     while (nRequest) {
-	*pbuffer++ = *psrc++;
+    *pbuffer++ = (short)*psrc++;
 	if(++offset==no_elements) psrc=(double *)paddr->pfield;
 	nRequest--;
     }
@@ -1929,12 +1929,12 @@ static long getDoubleUshort(
     double *psrc=(double *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pbuffer = *psrc;
+    *pbuffer = (unsigned short)*psrc;
 	return(0);
     }
     psrc += offset;
     while (nRequest) {
-	*pbuffer++ = *psrc++;
+    *pbuffer++ = (unsigned short)*psrc++;
 	if(++offset==no_elements) psrc=(double *)paddr->pfield;
 	nRequest--;
     }
@@ -2030,12 +2030,12 @@ static long getDoubleEnum(
     double *psrc=(double *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pbuffer = *psrc;
+    *pbuffer = (epicsEnum16)*psrc;
 	return(0);
     }
     psrc += offset;
     while (nRequest) {
-	*pbuffer++ = *psrc++;
+    *pbuffer++ = (epicsEnum16)*psrc++;
 	if(++offset==no_elements) psrc=(double *)paddr->pfield;
 	nRequest--;
     }
@@ -2065,12 +2065,12 @@ static long getEnumChar(
     epicsEnum16 *psrc=(epicsEnum16 *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pbuffer = *psrc;
+    *pbuffer = (char)*psrc;
 	return(0);
     }
     psrc += offset;
     while (nRequest) {
-	*pbuffer++ = *psrc++;
+    *pbuffer++ = (char)*psrc++;
 	if(++offset==no_elements) psrc=(epicsEnum16 *)paddr->pfield;
 	nRequest--;
     }
@@ -2085,12 +2085,12 @@ static long getEnumUchar(
     epicsEnum16 *psrc=(epicsEnum16 *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pbuffer = *psrc;
+    *pbuffer = (unsigned char)*psrc;
 	return(0);
     }
     psrc += offset;
     while (nRequest) {
-	*pbuffer++ = *psrc++;
+    *pbuffer++ = (unsigned char)*psrc++;
 	if(++offset==no_elements) psrc=(epicsEnum16 *)paddr->pfield;
 	nRequest--;
     }
@@ -3143,12 +3143,12 @@ static long putShortChar(
     char  *pdest=(char *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pdest = *pbuffer;
+    *pdest = (char)*pbuffer;
 	return(0);
     }
     pdest += offset;
     while (nRequest) {
-	*pdest++ = *pbuffer++;
+    *pdest++ = (char)*pbuffer++;
 	if(++offset==no_elements) pdest=(char *)paddr->pfield;
 	nRequest--;
     }
@@ -3163,12 +3163,12 @@ static long putShortUchar(
     unsigned char  *pdest=(unsigned char *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pdest = *pbuffer;
+    *pdest = (unsigned char)*pbuffer;
 	return(0);
     }
     pdest += offset;
     while (nRequest) {
-	*pdest++ = *pbuffer++;
+    *pdest++ = (unsigned char)*pbuffer++;
 	if(++offset==no_elements) pdest=(unsigned char *)paddr->pfield;
 	nRequest--;
     }
@@ -3349,12 +3349,12 @@ static long putUshortChar(
     char  *pdest=(char *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pdest = *pbuffer;
+    *pdest = (char)*pbuffer;
 	return(0);
     }
     pdest += offset;
     while (nRequest) {
-	*pdest++ = *pbuffer++;
+    *pdest++ = (char)*pbuffer++;
 	if(++offset==no_elements) pdest=(char *)paddr->pfield;
 	nRequest--;
     }
@@ -3369,12 +3369,12 @@ static long putUshortUchar(
     unsigned char  *pdest=(unsigned char *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pdest = *pbuffer;
+    *pdest = (unsigned char)*pbuffer;
 	return(0);
     }
     pdest += offset;
     while (nRequest) {
-	*pdest++ = *pbuffer++;
+    *pdest++ = (unsigned char)*pbuffer++;
 	if(++offset==no_elements) pdest=(unsigned char *)paddr->pfield;
 	nRequest--;
     }
@@ -3675,12 +3675,12 @@ static long putLongFloat(
     float  *pdest=(float *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pdest = *pbuffer;
+    *pdest = (float)*pbuffer;
 	return(0);
     }
     pdest += offset;
     while (nRequest) {
-	*pdest++ = *pbuffer++;
+    *pdest++ = (float)*pbuffer++;
 	if(++offset==no_elements) pdest=(float *)paddr->pfield;
 	nRequest--;
     }
@@ -3881,12 +3881,12 @@ static long putUlongFloat(
     float  *pdest=(float *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pdest = *pbuffer;
+    *pdest = (float)*pbuffer;
 	return(0);
     }
     pdest += offset;
     while (nRequest) {
-	*pdest++ = *pbuffer++;
+    *pdest++ = (float)*pbuffer++;
 	if(++offset==no_elements) pdest=(float *)paddr->pfield;
 	nRequest--;
     }
@@ -3972,12 +3972,12 @@ static long putFloatChar(
     char   *pdest=(char *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pdest = *pbuffer;
+    *pdest = (char)*pbuffer;
 	return(0);
     }
     pdest += offset;
     while (nRequest) {
-	*pdest++ = *pbuffer++;
+    *pdest++ = (char)*pbuffer++;
 	if(++offset==no_elements) pdest=(char *)paddr->pfield;
 	nRequest--;
     }
@@ -3992,12 +3992,12 @@ static long putFloatUchar(
     unsigned char   *pdest=(unsigned char *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pdest = *pbuffer;
+    *pdest = (unsigned char)*pbuffer;
 	return(0);
     }
     pdest += offset;
     while (nRequest) {
-	*pdest++ = *pbuffer++;
+    *pdest++ = (unsigned char)*pbuffer++;
 	if(++offset==no_elements) pdest=(unsigned char *)paddr->pfield;
 	nRequest--;
     }
@@ -4012,12 +4012,12 @@ static long putFloatShort(
     short  *pdest=(short *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pdest = *pbuffer;
+    *pdest = (short)*pbuffer;
 	return(0);
     }
     pdest += offset;
     while (nRequest) {
-	*pdest++ = *pbuffer++;
+    *pdest++ = (short)*pbuffer++;
 	if(++offset==no_elements) pdest=(short *)paddr->pfield;
 	nRequest--;
     }
@@ -4032,12 +4032,12 @@ static long putFloatUshort(
     unsigned short  *pdest=(unsigned short *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pdest = *pbuffer;
+    *pdest = (unsigned short)*pbuffer;
 	return(0);
     }
     pdest += offset;
     while (nRequest) {
-	*pdest++ = *pbuffer++;
+    *pdest++ = (unsigned short)*pbuffer++;
 	if(++offset==no_elements) pdest=(unsigned short *)paddr->pfield;
 	nRequest--;
     }
@@ -4052,12 +4052,12 @@ static long putFloatLong(
     epicsInt32  *pdest=(epicsInt32 *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pdest = *pbuffer;
+    *pdest = (epicsInt32)*pbuffer;
 	return(0);
     }
     pdest += offset;
     while (nRequest) {
-	*pdest++ = *pbuffer++;
+    *pdest++ = (epicsInt32)*pbuffer++;
 	if(++offset==no_elements) pdest=(epicsInt32 *)paddr->pfield;
 	nRequest--;
     }
@@ -4072,12 +4072,12 @@ static long putFloatUlong(
     epicsUInt32  *pdest=(epicsUInt32 *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pdest = *pbuffer;
+    *pdest = (epicsUInt32)*pbuffer;
 	return(0);
     }
     pdest += offset;
     while (nRequest) {
-	*pdest++ = *pbuffer++;
+    *pdest++ = (epicsUInt32)*pbuffer++;
 	if(++offset==no_elements) pdest=(epicsUInt32 *)paddr->pfield;
 	nRequest--;
     }
@@ -4132,12 +4132,12 @@ static long putFloatEnum(
     epicsEnum16  *pdest=(epicsEnum16 *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pdest = *pbuffer;
+    *pdest = (epicsEnum16)*pbuffer;
 	return(0);
     }
     pdest += offset;
     while (nRequest) {
-	*pdest++ = *pbuffer++;
+    *pdest++ = (epicsEnum16)*pbuffer++;
 	if(++offset==no_elements) pdest=(epicsEnum16 *)paddr->pfield;
 	nRequest--;
     }
@@ -4183,12 +4183,12 @@ static long putDoubleChar(
     char   *pdest=(char *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pdest = *pbuffer;
+    *pdest = (char)*pbuffer;
 	return(0);
     }
     pdest += offset;
     while (nRequest) {
-	*pdest++ = *pbuffer++;
+    *pdest++ = (char)*pbuffer++;
 	if(++offset==no_elements) pdest=(char *)paddr->pfield;
 	nRequest--;
     }
@@ -4203,12 +4203,12 @@ static long putDoubleUchar(
     unsigned char   *pdest=(unsigned char *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pdest = *pbuffer;
+    *pdest = (unsigned char)*pbuffer;
 	return(0);
     }
     pdest += offset;
     while (nRequest) {
-	*pdest++ = *pbuffer++;
+    *pdest++ = (unsigned char)*pbuffer++;
 	if(++offset==no_elements) pdest=(unsigned char *)paddr->pfield;
 	nRequest--;
     }
@@ -4223,12 +4223,12 @@ static long putDoubleShort(
     short  *pdest=(short *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pdest = *pbuffer;
+    *pdest = (short)*pbuffer;
 	return(0);
     }
     pdest += offset;
     while (nRequest) {
-	*pdest++ = *pbuffer++;
+    *pdest++ = (short)*pbuffer++;
 	if(++offset==no_elements) pdest=(short *)paddr->pfield;
 	nRequest--;
     }
@@ -4243,12 +4243,12 @@ static long putDoubleUshort(
     unsigned short  *pdest=(unsigned short *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pdest = *pbuffer;
+    *pdest = (unsigned short)*pbuffer;
 	return(0);
     }
     pdest += offset;
     while (nRequest) {
-	*pdest++ = *pbuffer++;
+    *pdest++ = (unsigned short)*pbuffer++;
 	if(++offset==no_elements) pdest=(unsigned short *)paddr->pfield;
 	nRequest--;
     }
@@ -4344,12 +4344,12 @@ static long putDoubleEnum(
     epicsEnum16  *pdest=(epicsEnum16 *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pdest = *pbuffer;
+    *pdest = (epicsEnum16)*pbuffer;
 	return(0);
     }
     pdest += offset;
     while (nRequest) {
-	*pdest++ = *pbuffer++;
+    *pdest++ = (epicsEnum16)*pbuffer++;
 	if(++offset==no_elements) pdest=(epicsEnum16 *)paddr->pfield;
 	nRequest--;
     }
@@ -4390,12 +4390,12 @@ static long putEnumChar(
     char  *pdest=(char *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pdest = *pbuffer;
+    *pdest = (char)*pbuffer;
 	return(0);
     }
     pdest += offset;
     while (nRequest) {
-	*pdest++ = *pbuffer++;
+    *pdest++ = (char)*pbuffer++;
 	if(++offset==no_elements) pdest=(char *)paddr->pfield;
 	nRequest--;
     }
@@ -4410,12 +4410,12 @@ static long putEnumUchar(
     unsigned char  *pdest=(unsigned char *)(paddr->pfield);
 
     if(nRequest==1 && offset==0) {
-	*pdest = *pbuffer;
+    *pdest = (unsigned char)*pbuffer;
 	return(0);
     }
     pdest += offset;
     while (nRequest) {
-	*pdest++ = *pbuffer++;
+    *pdest++ = (unsigned char)*pbuffer++;
 	if(++offset==no_elements) pdest=(unsigned char *)paddr->pfield;
 	nRequest--;
     }
diff --git a/src/ioc/db/dbFastLinkConv.c b/src/ioc/db/dbFastLinkConv.c
index 32d693f92..748716cde 100644
--- a/src/ioc/db/dbFastLinkConv.c
+++ b/src/ioc/db/dbFastLinkConv.c
@@ -509,14 +509,14 @@ static long cvt_s_c(
      epicsInt16 *from,
      epicsInt8 *to,
      const dbAddr *paddr)
- { *to=*from; return(0); }
+ { *to=(epicsInt8)*from; return(0); }
 
 /* Convert Short to Unsigned Char */
 static long cvt_s_uc(
      epicsInt16 *from,
      epicsUInt8 *to,
      const dbAddr *paddr)
- { *to=*from; return(0); }
+ { *to=(epicsUInt8)*from; return(0); }
 
 /* Convert Short to Short */
 static long cvt_s_s(
@@ -579,14 +579,14 @@ static long cvt_us_c(
      epicsUInt16 *from,
      epicsInt8 *to,
      const dbAddr *paddr)
- { *to=*from; return(0); }
+ { *to=(epicsInt8)*from; return(0); }
 
 /* Convert Unsigned Short to Unsigned Char */
 static long cvt_us_uc(
      epicsUInt16 *from,
      epicsUInt8 *to,
      const dbAddr *paddr)
- { *to=*from; return(0); }
+ { *to=(epicsUInt8)*from; return(0); }
 
 /* Convert Unsigned Short to Short */
 static long cvt_us_s(
@@ -691,7 +691,7 @@ static long cvt_l_f(
      epicsInt32 *from,
      epicsFloat32 *to,
      const dbAddr *paddr)
- { *to=*from; return(0); }
+ { *to=(epicsFloat32)*from; return(0); }
 
 /* Convert Long to Double */
 static long cvt_l_d(
@@ -761,7 +761,7 @@ static long cvt_ul_f(
      epicsUInt32 *from,
      epicsFloat32 *to,
      const dbAddr *paddr)
- { *to=*from; return(0); }
+ { *to=(epicsFloat32)*from; return(0); }
 
 /* Convert Unsigned Long to Double */
 static long cvt_ul_d(
@@ -791,7 +791,7 @@ static long cvt_f_st(
  
    if (prset && prset->get_precision)
      status = (*prset->get_precision)(paddr, &precision);
-   cvtFloatToString(*from, to, precision);
+   cvtFloatToString(*from, to, (unsigned short)precision);
    return(status);
  }
 
@@ -800,42 +800,42 @@ static long cvt_f_c(
      epicsFloat32 *from,
      epicsInt8 *to,
      const dbAddr *paddr)
- { *to=*from; return(0); }
+ { *to=(epicsInt8)*from; return(0); }
 
 /* Convert Float to Unsigned Char */
 static long cvt_f_uc(
      epicsFloat32 *from,
      epicsUInt8 *to,
      const dbAddr *paddr)
- { *to=*from; return(0); }
+ { *to=(epicsUInt8)*from; return(0); }
 
 /* Convert Float to Short */
 static long cvt_f_s(
      epicsFloat32 *from,
      epicsInt16 *to,
      const dbAddr *paddr)
- { *to=*from; return(0); }
+ { *to=(epicsInt16)*from; return(0); }
 
 /* Convert Float to Unsigned Short */
 static long cvt_f_us(
      epicsFloat32 *from,
      epicsUInt16 *to,
      const dbAddr *paddr)
- { *to=*from; return(0); }
+ { *to=(epicsUInt16)*from; return(0); }
 
 /* Convert Float to Long */
 static long cvt_f_l(
      epicsFloat32 *from,
      epicsInt32 *to,
      const dbAddr *paddr)
- { *to=*from; return(0); }
+ { *to=(epicsInt32)*from; return(0); }
 
 /* Convert Float to Unsigned Long */
 static long cvt_f_ul(
      epicsFloat32 *from,
      epicsUInt32 *to,
      const dbAddr *paddr)
- { *to=*from; return(0); }
+ { *to=(epicsUInt32)*from; return(0); }
 
 /* Convert Float to Float */
 static long cvt_f_f(
@@ -856,7 +856,7 @@ static long cvt_f_e(
      epicsFloat32 *from,
      epicsEnum16 *to,
      const dbAddr *paddr)
- { *to=*from; return(0); }
+ { *to=(epicsEnum16)*from; return(0); }
 
 /* Convert Double to String */
 static long cvt_d_st(
@@ -872,7 +872,7 @@ static long cvt_d_st(
  
    if (prset && prset->get_precision)
      status = (*prset->get_precision)(paddr, &precision);
-   cvtDoubleToString(*from, to, precision);
+   cvtDoubleToString(*from, to, (unsigned short)precision);
    return(status);
  }
 
@@ -881,28 +881,28 @@ static long cvt_d_c(
      epicsFloat64 *from,
      epicsInt8 *to,
      const dbAddr *paddr)
- { *to=*from; return(0); }
+ { *to=(epicsInt8)*from; return(0); }
 
 /* Convert Double to Unsigned Char */
 static long cvt_d_uc(
      epicsFloat64 *from,
      epicsUInt8 *to,
      const dbAddr *paddr)
- { *to=*from; return(0); }
+ { *to=(epicsUInt8)*from; return(0); }
 
 /* Convert Double to Short */
 static long cvt_d_s(
      epicsFloat64 *from,
      epicsInt16 *to,
      const dbAddr *paddr)
- { *to=*from; return(0); }
+ { *to=(epicsInt16)*from; return(0); }
 
 /* Convert Double to Unsigned Short */
 static long cvt_d_us(
      epicsFloat64 *from,
      epicsUInt16 *to,
      const dbAddr *paddr)
- { *to=*from; return(0); }
+ { *to=(epicsUInt16)*from; return(0); }
 
 /* Convert Double to Long */
 static long cvt_d_l(
@@ -937,21 +937,21 @@ static long cvt_d_e(
      epicsFloat64 *from,
      epicsEnum16 *to,
      const dbAddr *paddr)
- { *to=*from; return(0); }
+ { *to=(epicsEnum16)*from; return(0); }
 
 /* Convert Enumerated to Char */
 static long cvt_e_c(
      epicsEnum16 *from,
      epicsInt8 *to,
      const dbAddr *paddr)
- { *to=*from; return(0); }
+ { *to=(epicsInt8)*from; return(0); }
 
 /* Convert Enumerated to Unsigned Char */
 static long cvt_e_uc(
      epicsEnum16 *from,
      epicsUInt8 *to,
      const dbAddr *paddr)
- { *to=*from; return(0); }
+ { *to=(epicsUInt8)*from; return(0); }
 
 /* Convert Enumerated to Short */
 static long cvt_e_s(
diff --git a/src/ioc/db/dbTest.c b/src/ioc/db/dbTest.c
index 2198e0a12..4c7ac5574 100644
--- a/src/ioc/db/dbTest.c
+++ b/src/ioc/db/dbTest.c
@@ -1286,7 +1286,7 @@ static void dbpr_msgOut(TAB_BUFFER *pMsgBuff,int tab_size)
     if (err == 1) {
         len = strlen(pmsg);
         sprintf(pmsg, "dbpr_msgOut: ERROR - msg length=%d limit=%d ",
-            len, MAXLINE);
+            (int)len, MAXLINE);
         dbpr_insert_msg(pMsgBuff, len, tab_size);
     }
 }
diff --git a/src/ioc/dbStatic/dbLexRoutines.c b/src/ioc/dbStatic/dbLexRoutines.c
index 414111198..8c8ed7824 100644
--- a/src/ioc/dbStatic/dbLexRoutines.c
+++ b/src/ioc/dbStatic/dbLexRoutines.c
@@ -344,7 +344,7 @@ static int db_yyinput(char *buf, int max_size)
     n = (l<=max_size ? l : max_size);
     memcpy(buf,my_buffer_ptr,n);
     my_buffer_ptr += n;
-    return(n);
+    return (int)n;
 }
 
 static void dbIncludePrint(void)
diff --git a/src/ioc/dbtemplate/msi.c b/src/ioc/dbtemplate/msi.c
index ab47ccc47..782161a7f 100644
--- a/src/ioc/dbtemplate/msi.c
+++ b/src/ioc/dbtemplate/msi.c
@@ -311,7 +311,7 @@ static void inputAddPath(inputData *pinputData, char *path)
     pathNode    *ppathNode;
     const char  *pcolon;
     const char  *pdir;
-    int         len;
+    size_t      len;
     int         emptyName;
     const char  sep = *OSI_PATH_LIST_SEPARATOR;
 
diff --git a/src/ioc/rsrv/camessage.c b/src/ioc/rsrv/camessage.c
index d80490c72..d4d6f3008 100644
--- a/src/ioc/rsrv/camessage.c
+++ b/src/ioc/rsrv/camessage.c
@@ -886,7 +886,7 @@ static int write_action ( caHdrLargeArray *mp,
 static int host_name_action ( caHdrLargeArray *mp, void *pPayload,
     struct client *client )
 {
-    unsigned                size;
+    size_t                  size;
     char                    *pName;
     char                    *pMalloc;
     int                     chanCount;
@@ -965,7 +965,7 @@ static int host_name_action ( caHdrLargeArray *mp, void *pPayload,
 static int client_name_action ( caHdrLargeArray *mp, void *pPayload,
     struct client *client )
 {
-    unsigned                size;
+    size_t                  size;
     char                    *pName;
     char                    *pMalloc;
     int                     chanCount;