Fix compilation on 32-bit systems

Made small fix.

Author: rquey

VERSIONS

@@ -1,7 +1,8 @@
-New in 4.8.2-12 (26 Mar 2024):
+New in 4.8.2-13 (27 Mar 2024):
 - module -T: added -transform "cut(cube)", added -morphooptiini ori and id,
   improved -transform "cut(cubei)", made minor fixes and improvements.
 - module -M: made minor improvements.
+- general: fixed compilation on 32-bit systems.
 
 New in 4.8.1 (02 Feb 2024):
 - general: fixed compatibility with Gmsh (version 4.12.2).

doc/conf.py

@@ -11,8 +11,8 @@
 import sphinx_rtd_theme
 
 project = u'Neper'
-version = u'4.8.2-12'
-release = u'4.8.2-12'
+version = u'4.8.2-13'
+release = u'4.8.2-13'
 author = u'Romain Quey'
 copyright = u'Romain Quey'
 language = 'en'

src/CMakeLists.txt

@@ -7,7 +7,7 @@ if(POLICY CMP0077)
   cmake_policy(SET CMP0077 NEW)
 endif()
 
-set(NEPER_VERSION \"4.8.2-12\")
+set(NEPER_VERSION \"4.8.2-13\")
 project(neper)
 
 if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.8.1)

src/neut/neut_oset/neut_oset1.cpp

@@ -30,7 +30,7 @@ neut_oset_clustering (struct OL_SET OSet, struct OL_SET Grid, char *method, stru
     neut_oset_kdtree (&Grid, &nano_cloud, &nano_index);
 
     size_t num_results = 1;
-    std::vector<long unsigned int> ret_index(num_results);
+    std::vector<size_t> ret_index(num_results);
     std::vector<double>    out_dist_sqr(num_results);
 
     for (i = 0; i < (int) OSet.size; i++)