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/*
Copyright 2008, UCAR/Unidata
See COPYRIGHT file for copying and redistribution conditions.
*/
#include "config.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "netcdf.h"
#include "ncfilter.h"
#define PARAMS_ID 32768
/* The C standard apparently defines all floating point constants as double;
we rely on that in this code.
*/
#define DBLVAL 12345678.12345678
#define MAXPARAMS 32
#define NPARAMS 16 /* # of unsigned ints in params */
static unsigned int baseline[NPARAMS];
/* Expected contents of baseline:
id = 32768
params = 4294967279, 23, 4294967271, 27, 77, 93, 1145389056, 3287505826, 1097305129, 1, 2147483648, 4294967295, 4294967295
*/
static const char* spec =
"32768, -17b, 23ub, -25S, 27US, 77, 93U, 789f, 12345678.12345678d, -9223372036854775807L, 18446744073709551615UL, 2147483647, -2147483648, 4294967295";
/* Test support for the conversions */
/* Not sure if this kind of casting via union is legal C99 */
static union {
unsigned int ui;
float f;
} uf;
static union {
unsigned int ui[2];
double d;
} ud;
static union {
unsigned int ui[2];
unsigned long long ull;
long long ll;
} ul;
static int nerrs = 0;
static void
mismatch(size_t i, unsigned int *params, const char* tag)
{
fprintf(stderr,"mismatch: %s [%d] baseline=%ud params=%u\n",tag,(int)i,baseline[i],params[i]);
fflush(stderr);
nerrs++;
}
static void
mismatch2(size_t i, unsigned int *params, const char* tag)
{
fprintf(stderr,"mismatch2: %s [%ld-%ld] baseline=%ud,%ud params=%u,%u\n",
tag,(long)i,(long)(i+1),baseline[i],baseline[i+1],params[i],params[i+1]);
fflush(stderr);
nerrs++;
}
static void
insert(int index, void* src, size_t size)
{
void* dst = &baseline[index];
memcpy(dst,src,size);
}
static void
buildbaseline(void)
{
unsigned int val4;
unsigned long long val8;
float float4;
double float8;
val4 = ((unsigned int)-17) & 0xff;
insert(0,&val4,sizeof(val4)); /* 0 signed int*/
val4 = (unsigned int)23;
insert(1,&val4,sizeof(val4)); /* 1 unsigned int*/
val4 = ((unsigned int)-25) & 0xffff;
insert(2,&val4,sizeof(val4)); /* 3 signed int*/
val4 = (unsigned int)27;
insert(3,&val4,sizeof(val4)); /* 4 unsigned int*/
val4 = (unsigned int)77;
insert(4,&val4,sizeof(val4)); /* 4 signed int*/
val4 = (unsigned int)93;
insert(5,&val4,sizeof(val4)); /* 5 unsigned int*/
float4 = 789.0f;
insert(6,&float4,sizeof(float4)); /* 6 float */
float8 = DBLVAL;
insert(7,&float8,sizeof(float8)); /* 7 double */
val8 = -9223372036854775807L;
insert(9,&val8,sizeof(val8)); /* 9 signed long long */
val8 = 18446744073709551615UL;
insert(11,&val8,sizeof(val8)); /* 11 unsigned long long */
val4 = 2147483647;
insert(13,&val4,sizeof(val4)); /* 13 signed int */
val4 = -2147483648;
insert(14,&val4,sizeof(val4)); /* 14 signed int */
val4 = 4294967295;
insert(15,&val4,sizeof(val4)); /* 15 unsigned int */
}
/**************************************************/
int
main(int argc, char **argv)
{
int stat = 0;
unsigned int id = 0;
size_t i,nparams = 0;
unsigned int* params = NULL;
printf("\nTesting filter parser.\n");
buildbaseline(); /* Build our comparison vector */
stat = NC_parsefilterspec(spec,&id,&nparams,¶ms);
if(stat) {
fprintf(stderr,"NC_parsefilterspec failed\n");
exit(1);
}
if(id != PARAMS_ID)
fprintf(stderr,"mismatch: id: expected=%u actual=%u\n",PARAMS_ID,id);
for(i=0;i<nparams;i++) {
if(baseline[i] != params[i])
mismatch(i,params,"N.A.");
}
/* Now some specialized tests */
uf.ui = params[6];
if(uf.f != (float)789.0)
mismatch(6,params,"uf.f");
ud.ui[0] = params[7];
ud.ui[1] = params[8];
#ifdef WORD_BIGENDIAN
byteswap8((unsigned char*)&ud.d);
#endif
if(ud.d != DBLVAL)
mismatch2(7,params,"ud.d");
ul.ui[0] = params[9];
ul.ui[1] = params[10];
#ifdef WORD_BIGENDIAN
byteswap8((unsigned char*)&ul.ll);
#endif
if(ul.ll != -9223372036854775807LL)
mismatch2(9,params,"ul.ll");
ul.ui[0] = params[11];
ul.ui[1] = params[12];
#ifdef WORD_BIGENDIAN
byteswap8((unsigned char*)&ul.ull);
#endif
if(ul.ull != 18446744073709551615ULL)
mismatch2(11,params,"ul.ull");
if (params)
free(params);
if (!nerrs)
printf("SUCCESS!!\n");
return (nerrs > 0 ? 1 : 0);
}
#ifdef WORD_BIGENDIAN
/* Byte swap an 8-byte integer in place */
static void
byteswap8(unsigned char* mem)
{
unsigned char c;
c = mem[0];
mem[0] = mem[7];
mem[7] = c;
c = mem[1];
mem[1] = mem[6];
mem[6] = c;
c = mem[2];
mem[2] = mem[5];
mem[5] = c;
c = mem[3];
mem[3] = mem[4];
mem[4] = c;
}
#endif
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