Update to v1.5.v1.5

  The update to version 1.5 is rather substantial, and introduces some minor
  backward-incompatibilities:
    * The header "#!symbols" has been replaced by "#!virtual_fields"
    * Multiplying polynomials using the '*' symbol is no longer supported (or,
      rather, the symbolic capabilities of meankondo were enhanced, and the
      syntax has been changed).
    * 'meantools exp' has been removed (its functionality is now handled by
      other means)
    * 'meantoolds derive' has been replaced by 'meantools differentiate'

  * The symbolic capabilities were enhanced: polynomials can now be
    multiplied, added, exponentiated, and their logarithms can be taken
    directly in the configuration file.

  * The flow equation can now be processed after being computed using the
    various "#!postprocess_*" entries.

  * Deprecated kondo_preprocess.

  * Compute the mean using an LU decomposition if possible.

  * More detailed checks for syntax errors in configuration file.

  * Check that different '#!group' entries are indeed uncorrelated.

  * New flags in meankondo: '-p' and '-A'.

  * New tool: meantools expand.

  * Improve conversion to LaTeX using meantools-convert

  * Assign terms randomly to different threads.

  * Multiple bug fixes

1 files changed, 13 insertions, 1 deletions

diff --git a/src/array.h b/src/array.h
index fb74e67..480b589 100644
--- a/src/array.h
+++ b/src/array.h
@@ -1,5 +1,5 @@
 /*
-Copyright 2015 Ian Jauslin
+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.
@@ -34,8 +34,12 @@ int int_array_resize(Int_Array* array, int newsize);
 
 // add a value
 int int_array_append(int val, Int_Array* output);
+// add a value only if it is not already present
+int int_array_append_unique(int val, Int_Array* output);
 // concatenate
 int int_array_concat(Int_Array input, Int_Array* output);
+// concat but only add values that are not already present in the array
+int int_array_concat_unique(Int_Array input, Int_Array* output);
 
 // find (does not assume the array is sorted)
 int int_array_find(int val, Int_Array array);
@@ -75,6 +79,9 @@ int char_array_append_str(char* str, Char_Array* output);
 // concatenate
 int char_array_concat(Char_Array input, Char_Array* output);
 
+// substring
+int char_array_substring(Char_Array str, int begin, int end, Char_Array* substr);
+
 // convert to char*
 int char_array_to_str(Char_Array input, char** output);
 // noinit (changes the size of input if needed)
@@ -82,6 +89,11 @@ char* char_array_to_str_noinit(Char_Array* input);
 // convert from char*
 int str_to_char_array(char* str, Char_Array* output);
 
+// compare char_array's
+int char_array_cmp(Char_Array char_array1, Char_Array char_array2);
+// compare a char_array and a char*
+int char_array_cmp_str(Char_Array char_array, char* str);
+
 // format strings
 int char_array_snprintf(Char_Array* output, char* fmt, ...);