struct arg_dbl* arg_dbl1(const char* shortopts,
const char* longopts,
const char *datatype,
const char *glossary)
{
return arg_dbln(shortopts,longopts,datatype,1,1,glossary);
}
int main(int argc, char **argv)
{
struct arg_dbl *a = arg_dbl1(NULL,NULL,"a","a is <double>");
struct arg_dbl *b = arg_dbl0(NULL,NULL,"b","b is <double>");
struct arg_dbl *c = arg_dbl0(NULL,NULL,"c","c is <double>");
struct arg_dbl *d = arg_dbln("dD","delta","<double>",0,3,"d can occur 0..3 times");
struct arg_dbl *e = arg_dbl0(NULL,"eps,eqn","<double>","eps is optional");
struct arg_lit *help = arg_lit0(NULL,"help","print this help and exit");
struct arg_end *end = arg_end(20);
void* argtable[] = {a,b,c,d,e,help,end};
int nerrors;
int exitcode=0;
int i;
double sum=0;
/*
printf("a=%p\n",a);
printf("b=%p\n",b);
printf("c=%p\n",c);
printf("d=%p\n",d);
printf("e=%p\n",e);
printf("help=%p\n",help);
printf("end=%p\n",end);
printf("argtable=%p\n",argtable);
*/
/* print the command line */
for (i=0; i<argc; i++)
printf("%s ",argv[i]);
printf("\n");
/* verify the argtable[] entries were allocated sucessfully */
if (arg_nullcheck(argtable) != 0)
{
/* NULL entries were detected, some allocations must have failed */
printf("%s: insufficient memory\n",argv[0]);
exitcode=1;
goto exit;
}
/* Parse the command line as defined by argtable[] */
nerrors = arg_parse(argc,argv,argtable);
/* special case: '--help' takes precedence over error reporting */
if (help->count > 0)
{
printf("Usage: %s ", argv[0]);
arg_print_syntax(stdout,argtable,"\n");
arg_print_glossary(stdout,argtable," %-25s %s\n");
exitcode=0;
goto exit;
}
/* If the parser returned any errors then display them and exit */
if (nerrors > 0)
{
/* Display the error details contained in the arg_end struct.*/
arg_print_errors(stdout,end,argv[0]);
exitcode=1;
goto exit;
}
/* parsing complete, verify all args sum to zero */
for (i=0; i<a->count; i++)
{
printf("a[%d]=%f\n",i,a->dval[i]);
sum += a->dval[i];
}
for (i=0; i<b->count; i++)
{
printf("b[%d]=%f\n",i,b->dval[i]);
sum += b->dval[i];
}
for (i=0; i<c->count; i++)
{
printf("c[%d]=%f\n",i,c->dval[i]);
sum += c->dval[i];
}
for (i=0; i<d->count; i++)
{
printf("d[%d]=%f\n",i,d->dval[i]);
sum += d->dval[i];
}
for (i=0; i<e->count; i++)
{
printf("e[%d]=%f\n",i,e->dval[i]);
sum += e->dval[i];
}
printf("sum=%f\n",sum);
if (sum<-1.0e-6 || sum>1.0e-6)
{
printf("%s: error - sum=%f is non-zero\n",argv[0],sum);
exitcode=1;
goto exit;
}
exit:
/* deallocate each non-null entry in argtable[] */
arg_freetable(argtable,sizeof(argtable)/sizeof(argtable[0]));
printf("%s: exitcode=%d\n\n",argv[0],exitcode);
/* close stdin and stdout to stop memcheck whining about their memory not being freed */
fclose(stdin);
fclose(stdout);
return exitcode;
}
ArgTableEntry_Double::ArgTableEntry_Double(std::string shortopts, std::string longopts, std::string glossary) {
m_argDbl = arg_dbln(shortopts.c_str(), longopts.c_str(), "", 0, 1, glossary.c_str());
m_type = ArgType_t::DBL;
}
