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/*********************************************************************
* Copyright 2018, UCAR/Unidata
* See netcdf/COPYRIGHT file for copying and redistribution conditions.
*********************************************************************/
#include "zincludes.h"
#include <math.h>
#ifdef _MSC_VER
#include <crtdbg.h>
#endif
#include "isnan.h"
/*
Code taken directly from libdap4/d4cvt.c
*/
/* Intermediate results */
struct ZCVT {
signed long long int64v;
unsigned long long uint64v;
double float64v;
};
/* Forward */
static int typeid2jtype(nc_type typeid);
/* Convert an NCJ_STRING to a memory equivalent value of specified dsttype */
int
NCZ_convert1(NCjson* jsrc, nc_type dsttype, unsigned char* memory)
{
int stat = NC_NOERR;
nc_type srctype;
struct ZCVT zcvt;
int outofrange = 0;
/* Convert the incoming jsrc string to a restricted set of values */
switch (NCJsort(jsrc)) {
case NCJ_INT: /* convert to (u)int64 */
if(NCJstring(jsrc)[0] == '-') {
if(sscanf(NCJstring(jsrc),"%lld",&zcvt.int64v) != 1)
{stat = NC_EINVAL; goto done;}
srctype = NC_INT64;
} else {
if(sscanf(NCJstring(jsrc),"%llu",&zcvt.uint64v) != 1)
{stat = NC_EINVAL; goto done;}
srctype = NC_UINT64;
}
break;
case NCJ_STRING:
case NCJ_DOUBLE:
/* Capture nan and infinity values */
if(strcasecmp(NCJstring(jsrc),"nan")==0)
zcvt.float64v = NAN;
else if(strcasecmp(NCJstring(jsrc),"-nan")==0)
zcvt.float64v = - NAN;
else if(strcasecmp(NCJstring(jsrc),"infinity")==0)
zcvt.float64v = INFINITY;
else if(strcasecmp(NCJstring(jsrc),"-infinity")==0)
zcvt.float64v = (- INFINITY);
else {
if(sscanf(NCJstring(jsrc),"%lg",&zcvt.float64v) != 1)
{stat = NC_EINVAL; goto done;}
}
srctype = NC_DOUBLE;
break;
case NCJ_BOOLEAN:
srctype = NC_UINT64;
if(strcasecmp(NCJstring(jsrc),"false")==0)
zcvt.uint64v = 0;
else
zcvt.uint64v = 1;
break;
default: stat = NC_EINTERNAL; goto done;
}
/* Now, do the down conversion */
switch (dsttype) {
case NC_BYTE: {
signed char* p = (signed char*)memory;
switch (srctype) {
case NC_DOUBLE:
zcvt.int64v = (long long)zcvt.float64v; /* Convert to int64 */
/* fall thru */
case NC_INT64:
if(zcvt.int64v < NC_MIN_BYTE || zcvt.int64v > NC_MAX_BYTE) outofrange = 1;
*p = (signed char)zcvt.int64v;
break;
case NC_UINT64:
if(zcvt.uint64v > NC_MAX_BYTE) outofrange = 1;
*p = (signed char)zcvt.uint64v;
break;
}
} break;
case NC_UBYTE: {
unsigned char* p = (unsigned char*)memory;
switch (srctype) {
case NC_DOUBLE:
zcvt.int64v = (long long)zcvt.float64v; /* Convert to int64 */
/* fall thru */
case NC_INT64:
if(zcvt.int64v < 0 || zcvt.int64v > NC_MAX_BYTE) outofrange = 1;
*p = (unsigned char)zcvt.int64v;
break;
case NC_UINT64:
if(zcvt.uint64v > NC_MAX_UBYTE) outofrange = 1;
*p = (unsigned char)zcvt.uint64v;
break;
}
} break;
case NC_SHORT: {
signed short* p = (signed short*)memory;
switch (srctype) {
case NC_DOUBLE:
zcvt.int64v = (long long)zcvt.float64v; /* Convert to int64 */
/* fall thru */
case NC_INT64:
if(zcvt.int64v < NC_MIN_SHORT || zcvt.int64v > NC_MAX_SHORT) outofrange = 1;
*p = (signed short)zcvt.int64v;
break;
case NC_UINT64:
if(zcvt.uint64v > NC_MAX_SHORT) outofrange = 1;
*p = (signed short)zcvt.uint64v;
break;
}
} break;
case NC_USHORT: {
unsigned short* p = (unsigned short*)memory;
switch (srctype) {
case NC_DOUBLE:
zcvt.int64v = (long long)zcvt.float64v; /* Convert to int64 */
/* fall thru */
case NC_INT64:
if(zcvt.int64v < 0 || zcvt.int64v > NC_MAX_USHORT) outofrange = 1;
*p = (unsigned short)zcvt.int64v;
break;
case NC_UINT64:
if(zcvt.uint64v > NC_MAX_USHORT) outofrange = 1;
*p = (unsigned short)zcvt.uint64v;
break;
}
} break;
case NC_INT: {
signed int* p = (signed int*)memory;
switch (srctype) {
case NC_DOUBLE:
zcvt.int64v = (long long)zcvt.float64v; /* Convert to int64 */
/* fall thru */
case NC_INT64:
if(zcvt.int64v < NC_MIN_INT || zcvt.int64v > NC_MAX_INT) outofrange = 1;
*p = (signed int)zcvt.int64v;
break;
case NC_UINT64:
if(zcvt.uint64v > NC_MAX_INT) outofrange = 1;
*p = (signed int)zcvt.uint64v;
break;
}
} break;
case NC_UINT: {
unsigned int* p = (unsigned int*)memory;
switch (srctype) {
case NC_DOUBLE:
zcvt.int64v = (long long)zcvt.float64v; /* Convert to int64 */
/* fall thru */
case NC_INT64:
if(zcvt.int64v < 0 || zcvt.int64v > NC_MAX_UINT) outofrange = 1;
*p = (unsigned int)zcvt.int64v;
break;
case NC_UINT64:
if(zcvt.uint64v > NC_MAX_UINT) outofrange = 1;
*p = (unsigned int)zcvt.uint64v;
break;
}
} break;
case NC_INT64: {
signed long long* p = (signed long long*)memory;
switch (srctype) {
case NC_DOUBLE:
zcvt.int64v = (long long)zcvt.float64v; /* Convert to int64 */
/* fall thru */
case NC_INT64:
*p = (signed long long)zcvt.int64v;
break;
case NC_UINT64:
if(zcvt.uint64v > NC_MAX_INT64) outofrange = 1;
*p = (signed long long)zcvt.uint64v;
break;
}
} break;
case NC_UINT64: {
unsigned long long* p = (unsigned long long*)memory;
switch (srctype) {
case NC_DOUBLE:
zcvt.int64v = (signed long long)zcvt.float64v;
/* fall thru */
case NC_INT64:
if(zcvt.int64v < 0) outofrange = 1;
*p = (unsigned long long)zcvt.int64v;
break;
case NC_UINT64:
*p = (unsigned long long)zcvt.uint64v;
break;
}
} break;
case NC_FLOAT: {
float* p = (float*)memory;
switch (srctype) {
case NC_DOUBLE:
*p = (float)zcvt.float64v;
break;
case NC_INT64:
*p = (float)zcvt.int64v;
break;
case NC_UINT64:
*p = (float)zcvt.uint64v;
break;
}
} break;
case NC_DOUBLE: {
double* p = (double*)memory;
switch (srctype) {
case NC_DOUBLE:
*p = (double)zcvt.float64v;
break;
case NC_INT64:
*p = (double)zcvt.int64v;
break;
case NC_UINT64:
*p = (double)zcvt.uint64v;
break;
}
} break;
default: stat = NC_EINTERNAL; goto done;
}
done:
if(stat == NC_NOERR && outofrange) stat = NC_ERANGE;
return stat;
}
/* Convert a memory value to a JSON string value */
int
NCZ_stringconvert1(nc_type srctype, size_t len, char* src, NCjson* jvalue)
{
int stat = NC_NOERR;
struct ZCVT zcvt;
nc_type dsttype = NC_NAT;
char s[1024];
assert(srctype >= NC_NAT && srctype != NC_CHAR && srctype < NC_STRING);
/* Convert to a restricted set of values */
switch (srctype) {
case NC_BYTE: {
zcvt.int64v = (signed long long)(*((signed char*)src));
dsttype = NC_INT64;
} break;
case NC_UBYTE: {
zcvt.uint64v = (unsigned long long)(*((unsigned char*)src));
dsttype = NC_UINT64;
} break;
case NC_SHORT: {
zcvt.int64v = (signed long long)(*((signed short*)src));
dsttype = NC_INT64;
} break;
case NC_USHORT: {
zcvt.uint64v = (unsigned long long)(*((unsigned short*)src));
dsttype = NC_UINT64;
} break;
case NC_INT: {
zcvt.int64v = (signed long long)(*((signed int*)src));
dsttype = NC_INT64;
} break;
case NC_UINT: {
zcvt.uint64v = (unsigned long long)(*((unsigned int*)src));
dsttype = NC_UINT64;
} break;
case NC_INT64: {
zcvt.int64v = (signed long long)(*((signed long long*)src));
dsttype = NC_INT64;
} break;
case NC_UINT64: {
zcvt.uint64v = (unsigned long long)(*((unsigned long long*)src));
dsttype = NC_UINT64;
} break;
case NC_FLOAT: {
zcvt.float64v = (double)(*((float*)src));
dsttype = NC_DOUBLE;
} break;
case NC_DOUBLE: {
dsttype = NC_DOUBLE;
zcvt.float64v= (double)(*((double*)src));
} break;
default: stat = NC_EINTERNAL; goto done;
}
/* Convert from restricted set of values to standardized string form*/
switch (dsttype) {
case NC_INT64: {
snprintf(s,sizeof(s),"%lld",zcvt.int64v);
} break;
case NC_UINT64: {
snprintf(s,sizeof(s),"%llu",zcvt.uint64v);
} break;
case NC_DOUBLE: {
#ifdef _MSC_VER
switch (_fpclass(zcvt.float64v)) {
case _FPCLASS_SNAN: case _FPCLASS_QNAN:
strcpy(s,"NaN"); break;
case _FPCLASS_NINF:
strcpy(s,"-Infinity"); break;
case _FPCLASS_PINF:
strcpy(s,"Infinity"); break;
default:
snprintf(s,sizeof(s),"%lg",zcvt.float64v); /* handles NAN? */
break;
}
#else
if(isnan(zcvt.float64v))
strcpy(s,"NaN");
else if(isinf(zcvt.float64v) && zcvt.float64v < 0)
strcpy(s,"-Infinity");
else if(isinf(zcvt.float64v) && zcvt.float64v > 0)
strcpy(s,"Infinity");
else {
snprintf(s,sizeof(s),"%lg",zcvt.float64v); /* handles NAN? */
}
#endif
} break;
default: stat = NC_EINTERNAL; goto done;
}
NCJsetstring(jvalue,strdup(s));
done:
return stat;
}
int
NCZ_stringconvert(nc_type typeid, size_t len, void* data0, NCjson** jdatap)
{
int stat = NC_NOERR;
int i;
char* src = data0; /* so we can do arithmetic on it */
size_t typelen;
char* str = NULL;
NCjson* jvalue = NULL;
NCjson* jdata = NULL;
int jtype = NCJ_UNDEF;
jtype = typeid2jtype(typeid);
if((stat = NC4_inq_atomic_type(typeid, NULL, &typelen)))
goto done;
/* Handle char type specially */
if(typeid == NC_CHAR) {
/* Create a string valued json object */
if((stat = NCJnewstringn(NCJ_STRING,len,src,&jdata)))
goto done;
} else if(len == 1) { /* create singleton */
if((stat = NCJnew(jtype,&jdata))) goto done;
if((stat = NCZ_stringconvert1(typeid, len, src, jdata))) goto done;
} else { /* len > 1 create array of values */
if((stat = NCJnew(NCJ_ARRAY,&jdata))) goto done;
for(i=0;i<len;i++) {
if((stat = NCJnew(jtype,&jvalue))) goto done;
if((stat = NCZ_stringconvert1(typeid, len, src, jvalue))) goto done;
NCJappend(jdata,jvalue);
jvalue = NULL;
src += typelen;
}
}
if(jdatap) {*jdatap = jdata; jdata = NULL;}
done:
nullfree(str);
NCJreclaim(jvalue);
NCJreclaim(jdata);
return stat;
}
static int
typeid2jtype(nc_type typeid)
{
switch (typeid) {
case NC_BYTE: case NC_SHORT: case NC_INT: case NC_INT64:
case NC_UBYTE: case NC_USHORT: case NC_UINT: case NC_UINT64:
return NCJ_INT;
case NC_FLOAT:
case NC_DOUBLE:
return NCJ_DOUBLE;
case NC_CHAR:
return NCJ_STRING;
default: break;
}
return NCJ_UNDEF;
}
|
