mirror of
https://github.com/Unidata/netcdf-c.git
synced 2024-12-21 08:39:46 +08:00
8072d1f6bb
re: issue https://github.com/Unidata/netcdf-c/issues/1151 Modify DAP2 and DAP4 code to handle case when _FillValue type is not same as the parent variable type. Specifically: 1. Define a parameter [fillmismatch] to allow this mismatch; default is to disallow. 2. If allowed, forcibly change the type of the _FillValue to match the parent variable. 3. If allowed Convert the values to match new type 4. Generate a log message 5. if not allowed, then fail Implementing this required some changes to ncdap_test/dapcvt.c Also added test cases. Minor Unrelated Changes: 1. There were a number of warnings about e.g. assigning a const char* to a char*. Fix these 2. In nccopy.1, replace .NP with .IP "n" (re PR https://github.com/Unidata/netcdf-c/pull/1144) 3. fix minor error in ncdump/ocprint
414 lines
15 KiB
C
414 lines
15 KiB
C
/*********************************************************************
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* Copyright 1993, UCAR/Unidata
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* See netcdf/COPYRIGHT file for copying and redistribution conditions.
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*********************************************************************/
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#include "config.h"
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#include "dapincludes.h"
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#ifdef _MSC_VER
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#include <crtdbg.h>
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#include <math.h>
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#endif
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struct Value {
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long long llval;
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double dval;
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};
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/*Forward*/
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static int cvtnumconst(const char* s, struct Value* val);
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static int cvtdbl2int(struct Value* val);
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static int cvtint2dbl(struct Value* val);
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static int cvtint2int(nc_type dsttype, struct Value*);
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NCerror
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dapconvert(nc_type srctype, nc_type dsttype, char* memory0, char* value0, size_t count)
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{
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NCerror ncstat = NC_NOERR;
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size_t i;
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char* memory = memory0;
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char* value = value0;
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/* In order to deal with the DAP upgrade problem,
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try to preserve the bit patterns
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*/
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/* Provide space and pointer casts for intermediate results */
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signed char ncbyte;
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signed char* ncbytep;
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char ncchar;
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char* nccharp;
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short ncshort;
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short* ncshortp;
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int ncint;
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int* ncintp;
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float ncfloat;
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float* ncfloatp;
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double ncdouble;
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double* ncdoublep;
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unsigned char ncubyte;
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unsigned char* ncubytep;
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unsigned short ncushort;
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unsigned short* ncushortp;
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unsigned int ncuint;
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unsigned int* ncuintp;
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long long ncint64;
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long long* ncint64p;
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unsigned long long ncuint64;
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unsigned long long* ncuint64p;
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#define CASE(nc1,nc2) (nc1*256+nc2)
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#define CUT8(e) ((unsigned char)((e) & 0xff))
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#define CUT16(e) ((unsigned short)((e) & 0xffff))
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#define CUT32(e) ((unsigned int)((e) & 0xffffffff))
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#define ARM(vs,ncs,ts,vd,ncd,td) \
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case CASE(ncs,ncd):\
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vs##p = (ts *)value;\
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vs = *vs##p;\
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vd##p = (td *)memory;\
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*vd##p = (td)vs;\
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break;
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for(i=0;i<count;i++) {
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switch (CASE(srctype,dsttype)) {
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ARM(ncchar,NC_CHAR,char,ncchar,NC_CHAR,char)
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ARM(ncchar,NC_CHAR,char,ncbyte,NC_BYTE,signed char)
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ARM(ncchar,NC_CHAR,char,ncubyte,NC_UBYTE,unsigned char)
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ARM(ncchar,NC_CHAR,char,ncshort,NC_SHORT,short)
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ARM(ncchar,NC_CHAR,char,ncushort,NC_USHORT,unsigned short)
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ARM(ncchar,NC_CHAR,char,ncint,NC_INT,int)
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ARM(ncchar,NC_CHAR,char,ncuint,NC_UINT,unsigned int)
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ARM(ncchar,NC_CHAR,char,ncint64,NC_INT64,long long)
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ARM(ncchar,NC_CHAR,char,ncuint64,NC_UINT64,unsigned long long)
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ARM(ncchar,NC_CHAR,char,ncfloat,NC_FLOAT,float)
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ARM(ncchar,NC_CHAR,char,ncdouble,NC_DOUBLE,double)
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ARM(ncbyte,NC_BYTE,signed char,ncchar,NC_CHAR,char)
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ARM(ncbyte,NC_BYTE,signed char,ncbyte,NC_BYTE,signed char)
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ARM(ncbyte,NC_BYTE,signed char,ncubyte,NC_UBYTE,unsigned char)
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ARM(ncbyte,NC_BYTE,signed char,ncshort,NC_SHORT,short)
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ARM(ncbyte,NC_BYTE,signed char,ncushort,NC_USHORT,unsigned short)
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ARM(ncbyte,NC_BYTE,signed char,ncint,NC_INT,int)
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ARM(ncbyte,NC_BYTE,signed char,ncuint,NC_UINT,unsigned int)
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ARM(ncbyte,NC_BYTE,signed char,ncint64,NC_INT64,long long)
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ARM(ncbyte,NC_BYTE,signed char,ncuint64,NC_UINT64,unsigned long long)
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ARM(ncbyte,NC_BYTE,signed char,ncfloat,NC_FLOAT,float)
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ARM(ncbyte,NC_BYTE,signed char,ncdouble,NC_DOUBLE,double)
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ARM(ncubyte,NC_UBYTE,unsigned char,ncchar,NC_CHAR,char)
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ARM(ncubyte,NC_UBYTE,unsigned char,ncbyte,NC_BYTE,signed char)
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ARM(ncubyte,NC_UBYTE,unsigned char,ncubyte,NC_UBYTE,unsigned char)
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ARM(ncubyte,NC_UBYTE,unsigned char,ncshort,NC_SHORT,short)
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ARM(ncubyte,NC_UBYTE,unsigned char,ncushort,NC_USHORT,unsigned short)
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ARM(ncubyte,NC_UBYTE,unsigned char,ncint,NC_INT,int)
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ARM(ncubyte,NC_UBYTE,unsigned char,ncuint,NC_UINT,unsigned int)
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ARM(ncubyte,NC_UBYTE,unsigned char,ncint64,NC_INT64,long long)
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ARM(ncubyte,NC_UBYTE,unsigned char,ncuint64,NC_UINT64,unsigned long long)
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ARM(ncubyte,NC_UBYTE,unsigned char,ncfloat,NC_FLOAT,float)
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ARM(ncubyte,NC_UBYTE,unsigned char,ncdouble,NC_DOUBLE,double)
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ARM(ncshort,NC_SHORT,short,ncchar,NC_CHAR,char)
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ARM(ncshort,NC_SHORT,short,ncbyte,NC_BYTE,signed char)
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ARM(ncshort,NC_SHORT,short,ncubyte,NC_UBYTE,unsigned char)
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ARM(ncshort,NC_SHORT,short,ncshort,NC_SHORT,short)
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ARM(ncshort,NC_SHORT,short,ncushort,NC_USHORT,unsigned short)
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ARM(ncshort,NC_SHORT,short,ncint,NC_INT,int)
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ARM(ncshort,NC_SHORT,short,ncuint,NC_UINT,unsigned int)
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ARM(ncshort,NC_SHORT,short,ncint64,NC_INT64,long long)
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ARM(ncshort,NC_SHORT,short,ncuint64,NC_UINT64,unsigned long long)
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ARM(ncshort,NC_SHORT,short,ncfloat,NC_FLOAT,float)
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ARM(ncshort,NC_SHORT,short,ncdouble,NC_DOUBLE,double)
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ARM(ncushort,NC_USHORT,unsigned short,ncchar,NC_CHAR,char)
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ARM(ncushort,NC_USHORT,unsigned short,ncbyte,NC_BYTE,signed char)
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ARM(ncushort,NC_USHORT,unsigned short,ncubyte,NC_UBYTE,unsigned char)
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ARM(ncushort,NC_USHORT,unsigned short,ncshort,NC_SHORT,short)
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ARM(ncushort,NC_USHORT,unsigned short,ncushort,NC_USHORT,unsigned short)
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ARM(ncushort,NC_USHORT,unsigned short,ncint,NC_INT,int)
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ARM(ncushort,NC_USHORT,unsigned short,ncuint,NC_UINT,unsigned int)
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ARM(ncushort,NC_USHORT,unsigned short,ncint64,NC_INT64,long long)
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ARM(ncushort,NC_USHORT,unsigned short,ncuint64,NC_UINT64,unsigned long long)
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ARM(ncushort,NC_USHORT,unsigned short,ncfloat,NC_FLOAT,float)
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ARM(ncushort,NC_USHORT,unsigned short,ncdouble,NC_DOUBLE,double)
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ARM(ncint,NC_INT,int,ncchar,NC_CHAR,char)
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ARM(ncint,NC_INT,int,ncbyte,NC_BYTE,signed char)
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ARM(ncint,NC_INT,int,ncubyte,NC_UBYTE,unsigned char)
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ARM(ncint,NC_INT,int,ncshort,NC_SHORT,short)
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ARM(ncint,NC_INT,int,ncushort,NC_USHORT,unsigned short)
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ARM(ncint,NC_INT,int,ncint,NC_INT,int)
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ARM(ncint,NC_INT,int,ncuint,NC_UINT,unsigned int)
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ARM(ncint,NC_INT,int,ncint64,NC_INT64,long long)
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ARM(ncint,NC_INT,int,ncuint64,NC_UINT64,unsigned long long)
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ARM(ncint,NC_INT,int,ncfloat,NC_FLOAT,float)
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ARM(ncint,NC_INT,int,ncdouble,NC_DOUBLE,double)
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ARM(ncuint,NC_UINT,unsigned int,ncchar,NC_CHAR,char)
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ARM(ncuint,NC_UINT,unsigned int,ncbyte,NC_BYTE,signed char)
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ARM(ncuint,NC_UINT,unsigned int,ncubyte,NC_UBYTE,unsigned char)
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ARM(ncuint,NC_UINT,unsigned int,ncshort,NC_SHORT,short)
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ARM(ncuint,NC_UINT,unsigned int,ncushort,NC_USHORT,unsigned short)
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ARM(ncuint,NC_UINT,unsigned int,ncint,NC_INT,int)
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ARM(ncuint,NC_UINT,unsigned int,ncuint,NC_UINT,unsigned int)
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ARM(ncuint,NC_UINT,unsigned int,ncint64,NC_INT64,long long)
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ARM(ncuint,NC_UINT,unsigned int,ncuint64,NC_UINT64,unsigned long long)
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ARM(ncuint,NC_UINT,unsigned int,ncfloat,NC_FLOAT,float)
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ARM(ncuint,NC_UINT,unsigned int,ncdouble,NC_DOUBLE,double)
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ARM(ncint64,NC_INT64,long long,ncchar,NC_CHAR,char)
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ARM(ncint64,NC_INT64,long long,ncbyte,NC_BYTE,signed char)
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ARM(ncint64,NC_INT64,long long,ncubyte,NC_UBYTE,unsigned char)
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ARM(ncint64,NC_INT64,long long,ncshort,NC_SHORT,short)
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ARM(ncint64,NC_INT64,long long,ncushort,NC_USHORT,unsigned short)
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ARM(ncint64,NC_INT64,long long,ncint,NC_INT,int)
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ARM(ncint64,NC_INT64,long long,ncuint,NC_UINT,unsigned int)
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ARM(ncint64,NC_INT64,long long,ncint64,NC_INT64,long long)
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ARM(ncint64,NC_INT64,long long,ncuint64,NC_UINT64,unsigned long long)
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ARM(ncint64,NC_INT64,long long,ncfloat,NC_FLOAT,float)
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ARM(ncint64,NC_INT64,long long,ncdouble,NC_DOUBLE,double)
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ARM(ncuint64,NC_UINT64,unsigned long long,ncchar,NC_CHAR,char)
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ARM(ncuint64,NC_UINT64,unsigned long long,ncbyte,NC_BYTE,signed char)
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ARM(ncuint64,NC_UINT64,unsigned long long,ncubyte,NC_UBYTE,unsigned char)
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ARM(ncuint64,NC_UINT64,unsigned long long,ncshort,NC_SHORT,short)
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ARM(ncuint64,NC_UINT64,unsigned long long,ncushort,NC_USHORT,unsigned short)
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ARM(ncuint64,NC_UINT64,unsigned long long,ncint,NC_INT,int)
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ARM(ncuint64,NC_UINT64,unsigned long long,ncuint,NC_UINT,unsigned int)
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ARM(ncuint64,NC_UINT64,unsigned long long,ncint64,NC_INT64,long long)
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ARM(ncuint64,NC_UINT64,unsigned long long,ncuint64,NC_UINT64,unsigned long long)
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ARM(ncuint64,NC_UINT64,unsigned long long,ncfloat,NC_FLOAT,float)
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ARM(ncuint64,NC_UINT64,unsigned long long,ncdouble,NC_DOUBLE,double)
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ARM(ncfloat,NC_FLOAT,float,ncchar,NC_CHAR,char)
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ARM(ncfloat,NC_FLOAT,float,ncbyte,NC_BYTE,signed char)
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ARM(ncfloat,NC_FLOAT,float,ncubyte,NC_UBYTE,unsigned char)
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ARM(ncfloat,NC_FLOAT,float,ncshort,NC_SHORT,short)
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ARM(ncfloat,NC_FLOAT,float,ncushort,NC_USHORT,unsigned short)
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ARM(ncfloat,NC_FLOAT,float,ncint,NC_INT,int)
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ARM(ncfloat,NC_FLOAT,float,ncuint,NC_UINT,unsigned int)
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ARM(ncfloat,NC_FLOAT,float,ncint64,NC_INT64,long long)
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ARM(ncfloat,NC_FLOAT,float,ncuint64,NC_UINT64,unsigned long long)
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ARM(ncfloat,NC_FLOAT,float,ncfloat,NC_FLOAT,float)
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ARM(ncfloat,NC_FLOAT,float,ncdouble,NC_DOUBLE,double)
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ARM(ncdouble,NC_DOUBLE,double,ncchar,NC_CHAR,char)
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ARM(ncdouble,NC_DOUBLE,double,ncbyte,NC_BYTE,signed char)
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ARM(ncdouble,NC_DOUBLE,double,ncubyte,NC_UBYTE,unsigned char)
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ARM(ncdouble,NC_DOUBLE,double,ncshort,NC_SHORT,short)
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ARM(ncdouble,NC_DOUBLE,double,ncushort,NC_USHORT,unsigned short)
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ARM(ncdouble,NC_DOUBLE,double,ncint,NC_INT,int)
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ARM(ncdouble,NC_DOUBLE,double,ncuint,NC_UINT,unsigned int)
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ARM(ncdouble,NC_DOUBLE,double,ncint64,NC_INT64,long long)
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ARM(ncdouble,NC_DOUBLE,double,ncuint64,NC_UINT64,unsigned long long)
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ARM(ncdouble,NC_DOUBLE,double,ncfloat,NC_FLOAT,float)
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ARM(ncdouble,NC_DOUBLE,double,ncdouble,NC_DOUBLE,double)
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default: ncstat = NC_EINVAL; THROWCHK(ncstat); goto fail;
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}
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value += nctypesizeof(srctype);
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memory += nctypesizeof(dsttype);
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}
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fail:
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return THROW(ncstat);
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}
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/**
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Convert an attribute value string to a specific type.
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If the conversion fails, then return NC_EBADTYPE.
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If we need an int and the string value is out of range, return NC_ERANGE.
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@param etype the target type
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@param dst the memory into which to put the converted constants
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@param src list of constants as strings
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*/
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NCerror
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dapcvtattrval(nc_type etype, void* dst, NClist* src, NCattribute* att)
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{
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int i;
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NCerror ncstat = NC_NOERR;
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unsigned int memsize = nctypesizeof(etype);
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unsigned int nvalues = nclistlength(src);
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char* dstmem = (char*)dst;
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for(i=0;i<nvalues;i++) {
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/* Convert numeric looking constants to either double
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or signed long long and conforming to etype*/
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char* s;
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size_t slen;
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s = (char*)nclistget(src,i);
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slen = strlen(s);
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if(etype <= NC_DOUBLE && etype != NC_CHAR) {
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struct Value val;
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int stype;
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/* Target types */
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unsigned char* u8p;
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short* i16p;
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unsigned short* u16p;
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int* i32p;
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unsigned int* u32p;
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float* fp;
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double* dp;
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/* Convert string to a number */
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stype = cvtnumconst(s,&val);
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if(stype == NC_NAT) {
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nclog(NCLOGERR,"Unexpected attribute value: %s = %s",att->name,s);
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ncstat = NC_EBADTYPE;
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goto next;
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}
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/* Force conformance with etype */
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/* Do Specific conversions */
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if(stype == NC_DOUBLE && etype < NC_FLOAT) {/* double->integer-type */
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if((ncstat = cvtdbl2int(&val))) goto next;
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stype = NC_INT; /* pretend */
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}else if(stype == NC_INT && etype >= NC_FLOAT) {/*integer-type -> float type*/
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if((ncstat = cvtint2dbl(&val))) goto next;
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stype = NC_DOUBLE; /* pretend */
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}
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if(stype == NC_INT && etype < NC_FLOAT) {/* integer-type -> integer-type */
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if((ncstat = cvtint2int(etype,&val))) goto next;
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}
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switch (etype) {
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case NC_BYTE:
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/* Note that in DAP2, this is unsigned 8-bit integer */
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u8p = (unsigned char*)dstmem;
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*u8p = (unsigned char)(val.llval);
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break;
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case NC_SHORT:
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i16p = (short*)dstmem;
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*i16p = (short)(val.llval);
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break;
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case NC_USHORT:
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u16p = (unsigned short*)dstmem;
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*u16p = (unsigned short)(val.llval);
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break;
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case NC_INT:
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i32p = (int*)dstmem;
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*i32p = (int)(val.llval);
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break;
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case NC_UINT:
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u32p = (unsigned int*)dstmem;
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*u32p = (unsigned int)(val.llval);
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break;
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case NC_FLOAT:
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fp = (float*)dstmem;
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*fp = (float)(val.dval);
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break;
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case NC_DOUBLE:
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dp = (double*)dstmem;
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*dp = (double)(val.dval);
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break;
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default: return NC_EINTERNAL;
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}
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} else if(etype == NC_CHAR) {
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char* p = (char*)dstmem;
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size_t count;
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int nread;
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count = sscanf(s,"%c%n",p,&nread);
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if(count != 1 || nread != slen)
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{ncstat = NC_EBADTYPE; goto next;}
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} else if(etype == NC_STRING || etype == NC_URL) {
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char** p = (char**)dstmem;
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*p = nulldup(s);
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} else {
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PANIC1("unexpected nc_type: %d",(int)etype);
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}
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next: /* inside loop */
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if(ncstat == NC_ERANGE)
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nclog(NCLOGERR,"Attribute value out of range: %s = %s",att->name,s);
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else if(ncstat == NC_EBADTYPE)
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nclog(NCLOGERR,"Unexpected attribute type or untranslatable value: %s",att->name);
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ncstat = NC_NOERR;
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dstmem += memsize;
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}
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return THROW(ncstat);
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}
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/**
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@param val resulting converted numeric value
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@return NC_INT || NC_DOUBLE || NC_NAT (failure)
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*/
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static int
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cvtnumconst(const char* s, struct Value* val)
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{
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size_t slen = strlen(s);
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int nread; /* # of chars read */
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size_t count; /* # of conversions */
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/* Try to convert to integer first */
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count = sscanf(s,"%lld%n",&val->llval,&nread);
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if(count == 1 && nread == slen)
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return NC_INT;
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/* Try to convert to float second */
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#ifdef _WIN32
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if (!_strnicmp(s, "NaN", 3)) {count = 1; nread = 3; val->dval = NAN;} else
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#endif
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count = sscanf(s,"%lg%n",&val->dval,&nread);
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if(count == 1 && nread == slen)
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return NC_DOUBLE;
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return NC_INT;
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}
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/**
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Convert a struct Value.dval field to a long in struct Value.llval field.
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Report if the result is out of range wrt NC_MAX/MIN_INT.
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@param val store original and converted value
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@return NC_NOERR | NC_ERANGE
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*/
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static int
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cvtdbl2int(struct Value* val)
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{
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/* Inter-convert */
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#ifdef _WIN32
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if(isnan(val->dval)) return NC_ERANGE;
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#endif
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val->llval = (long long)val->dval;
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if(val->llval < NC_MIN_INT || val->llval > NC_MAX_INT)
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return NC_ERANGE;
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return NC_NOERR;
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}
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/**
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Convert a struct Value.llval field to double in struct Value.dval field.
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@return NC_NOERR
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*/
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static int
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cvtint2dbl(struct Value* val)
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{
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/* Inter-convert */
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val->dval = (double)val->llval;
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return NC_NOERR;
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}
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/**
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Convert long long bit pattern to conform to a given
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integer type.
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@param dsttype target integer type
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@param valp pointer to long long value to convert
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|
@return NC_NOERR | NC_EBADTYPE
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|
*/
|
|
static int
|
|
cvtint2int(nc_type dsttype, struct Value* val)
|
|
{
|
|
/* assert dsttype < NC_FLOAT && dsttype != NC_CHAR */
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|
|
|
/* We do not actually do much in the way of range checking,
|
|
we just truncate the bit pattern to the proper size, taking
|
|
signedness into account */
|
|
|
|
switch (dsttype) {
|
|
case NC_BYTE:
|
|
val->llval = (long long)((signed char)(val->llval));
|
|
break;
|
|
case NC_UBYTE:
|
|
val->llval = (long long)(val->llval & 0xFF);
|
|
break;
|
|
case NC_SHORT:
|
|
val->llval = (long long)((short)(val->llval));
|
|
break;
|
|
case NC_USHORT:
|
|
val->llval = (long long)(val->llval & 0xFFFF);
|
|
break;
|
|
case NC_INT:
|
|
val->llval = (long long)((int)(val->llval));
|
|
break;
|
|
case NC_UINT:
|
|
val->llval = (long long)(val->llval & 0xFFFFFFFF);
|
|
break;
|
|
default: return NC_EBADTYPE;
|
|
}
|
|
return NC_NOERR;
|
|
}
|