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/*
Copyright 2015-2022 Ian Jauslin
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#include "meantools_eval.h"
#include <stdio.h>
#include <stdlib.h>
#include <mpfr.h>
#include "parse_file.h"
#include "cli_parser.h"
#include "grouped_polynomial.h"
#include "array.h"
#include "rcc.h"
#include "rcc_mpfr.h"
#define CP_FLAG_RCCS 1
#define CP_FLAG_MPFR_PREC 2
#define CP_FLAG_MPFR_EXP 3
// read command line arguments
int tool_eval_read_args(int argc, const char* argv[], Str_Array* str_args, Meantools_Options* opts){
// temporary long int
long int tmp_lint;
// file to read the polynomial from in flow mode
const char* file="";
// whether a file was specified on the command-line
int exists_file=0;
// flag
int flag=0;
int i;
char* ptr;
// defaults
// mark rccstring so that it can be recognized whether it has been set or not
(*opts).eval_rccstring.length=-1;
// no mpfr
(*opts).mpfr_prec=0;
(*opts).mpfr_emax=0;
// loop over arguments
for(i=2;i<argc;i++){
// flag
if(argv[i][0]=='-'){
for(ptr=((char*)argv[i])+1;*ptr!='\0';ptr++){
switch(*ptr){
// evaluate string
case 'R':
flag=CP_FLAG_RCCS;
break;
// mpfr precision
case 'P':
flag=CP_FLAG_MPFR_PREC;
break;
// mpfr emax
case 'E':
flag=CP_FLAG_MPFR_EXP;
break;
}
}
}
// rccs
else if(flag==CP_FLAG_RCCS){
str_to_char_array((char*)argv[i], &((*opts).eval_rccstring));
flag=0;
}
// mpfr precision
else if(flag==CP_FLAG_MPFR_PREC){
sscanf(argv[i],"%ld",&tmp_lint);
(*opts).mpfr_prec=(mpfr_prec_t)tmp_lint;
flag=0;
}
// mpfr emax
else if(flag==CP_FLAG_MPFR_EXP){
sscanf(argv[i],"%ld",&tmp_lint);
(*opts).mpfr_emax=(mpfr_exp_t)tmp_lint;
flag=0;
}
// read file name from command-line
else{
file=argv[i];
exists_file=1;
}
}
read_config_file(str_args, file, 1-exists_file);
return(0);
}
// evaluate a flow equation on a vector of rccs
int tool_eval(Str_Array str_args, Meantools_Options opts){
// index of the entry in the input file
int arg_index;
// rccs
RCC rccs;
RCC_mpfr rccs_mpfr;
// flow equation
Grouped_Polynomial flow_equation;
// whether or not to use mpfr floats
int mpfr_flag=0;
// set mpfr defaults
if(opts.mpfr_prec!=0){
mpfr_set_default_prec(opts.mpfr_prec);
mpfr_flag=1;
}
if(opts.mpfr_emax!=0){
mpfr_set_emax(opts.mpfr_emax);
mpfr_flag=1;
}
// parse flow equation
// if there is a unique argument, assume it is the flow equation
if(str_args.length==1){
char_array_to_Grouped_Polynomial(str_args.strs[0], &flow_equation);
}
else{
arg_index=find_str_arg("flow_equation", str_args);
if(arg_index<0){
fprintf(stderr,"error: no flow equation entry in the configuration file\n");
exit(-1);
}
else{
char_array_to_Grouped_Polynomial(str_args.strs[arg_index], &flow_equation);
}
// rccs
// check they were not specified on the command line
if(opts.eval_rccstring.length==-1){
arg_index=find_str_arg("initial_condition", str_args);
if(arg_index>=0){
char_array_cpy(str_args.strs[arg_index],&(opts.eval_rccstring));
}
}
}
// initialize the rccs
if(mpfr_flag==0){
prepare_init(flow_equation.indices,flow_equation.length,&rccs);
}
else{
prepare_init_mpfr(flow_equation.indices,flow_equation.length,&rccs_mpfr);
}
// read rccs from string
if(opts.eval_rccstring.length!=-1){
parse_init_cd(opts.eval_rccstring, &rccs, &rccs_mpfr, mpfr_flag);
free_Char_Array(opts.eval_rccstring);
}
// evaluate
if(mpfr_flag==0){
evaleq(rccs, rccs, flow_equation);
RCC_print(rccs);
free_RCC(rccs);
}
else{
evaleq_mpfr(rccs_mpfr, rccs_mpfr, flow_equation);
RCC_mpfr_print(rccs_mpfr);
free_RCC_mpfr(rccs_mpfr);
}
// free memory
free_Grouped_Polynomial(flow_equation);
return(0);
}
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