From 469bdc80712dbf9c12562059dc4594620b59a076 Mon Sep 17 00:00:00 2001
From: Ian Jauslin <ian.jauslin@roma1.infn.it>
Date: Wed, 7 Oct 2015 12:51:41 +0000
Subject: Support MPFR floats in numkondo

Remove '-D' option (error tolerance) in numkondo
---
 src/rcc_mpfr.c | 124 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 src/rcc_mpfr.c

(limited to 'src/rcc_mpfr.c')

diff --git a/src/rcc_mpfr.c b/src/rcc_mpfr.c
new file mode 100644
index 0000000..8a362e3
--- /dev/null
+++ b/src/rcc_mpfr.c
@@ -0,0 +1,124 @@
+/*
+Copyright 2015 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 "rcc_mpfr.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+// define MPFR_USE_VA_LIST to enable the use of mpfr_inits and mpfr_clears
+#define MPFR_USE_VA_LIST
+// define MPFR_USE_FILE to enable the use of mpfr_printf
+#define MPFR_USE_FILE
+#include <mpfr.h>
+#include <math.h>
+#include "array.h"
+
+// init
+int init_RCC_mpfr(RCC_mpfr* rcc_mpfr, int size){
+  int i;
+  (*rcc_mpfr).values=calloc(size,sizeof(mpfr_t));
+  (*rcc_mpfr).indices=calloc(size,sizeof(int));
+  (*rcc_mpfr).length=size;
+  for(i=0;i<size;i++){
+    mpfr_init((*rcc_mpfr).values[i]);
+  }
+
+  return(0);
+}
+
+int free_RCC_mpfr(RCC_mpfr rcc_mpfr){
+  int i;
+  for(i=0;i<rcc_mpfr.length;i++){
+    mpfr_clear(rcc_mpfr.values[i]);
+  }
+  free(rcc_mpfr.values);
+  free(rcc_mpfr.indices);
+  return(0);
+}
+
+// set a given element of an rcc_mpfr
+int RCC_mpfr_set_elem(mpfr_t value, int index, RCC_mpfr* rcc_mpfr, int pos){
+  mpfr_set((*rcc_mpfr).values[pos], value, MPFR_RNDN);
+  (*rcc_mpfr).indices[pos]=index;
+  return(0);
+}
+
+int RCC_mpfr_cpy(RCC_mpfr input,RCC_mpfr* output){
+  int i;
+
+  init_RCC_mpfr(output,input.length);
+  for(i=0;i<input.length;i++){
+    RCC_mpfr_set_elem(input.values[i], input.indices[i], output, i);
+  }
+  return(0);
+}
+
+// concatenate rcc_mpfr
+int RCC_mpfr_concat(RCC_mpfr rcc_mpfr1, RCC_mpfr rcc_mpfr2, RCC_mpfr* output){
+  int i;
+
+  init_RCC_mpfr(output,rcc_mpfr1.length+rcc_mpfr2.length);
+
+  for(i=0;i<rcc_mpfr1.length;i++){
+    RCC_mpfr_set_elem(rcc_mpfr1.values[i], rcc_mpfr1.indices[i], output, i);
+  }
+
+  for(i=0;i<rcc_mpfr2.length;i++){
+    RCC_mpfr_set_elem(rcc_mpfr2.values[i], rcc_mpfr2.indices[i], output, i+rcc_mpfr1.length);
+  }
+  
+  return(0);
+}
+
+// append an rcc_mpfr at the end of another
+int RCC_mpfr_append(RCC_mpfr input, RCC_mpfr* output){
+  int i;
+  for(i=0;i<input.length;i++){
+    RCC_mpfr_set_elem(input.values[i], input.indices[i], output, i+(*output).length);
+  }
+  (*output).length+=input.length;
+  return(0);
+}
+
+// print an rcc_mpfr vector with maximal precision
+int RCC_mpfr_print(RCC_mpfr rcc_mpfr){
+  int j;
+  // the printf format
+  Char_Array printf_format;
+  // number of digits in output
+  int size;
+
+  // compute size
+  // WARNING: assumes mpfr_default_prec is an int
+  size=mpfr_get_default_prec()*log10(2)-1;
+
+  init_Char_Array(&printf_format,12);
+  char_array_snprintf(&printf_format,"%%d:%%.%dRe",size);
+
+  for(j=0;j<rcc_mpfr.length;j++){
+    mpfr_printf(printf_format.str,rcc_mpfr.indices[j],rcc_mpfr.values[j]);
+    if(j<rcc_mpfr.length-1){
+      printf(",\n");
+    }
+    else{
+      printf("\n");
+    }
+  }
+
+  free_Char_Array(printf_format);
+
+  return(0);
+}
-- 
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