Merge pull request #78 from FastNFT/release-0.5

Release 0.5

Author: wahls

.gitignore

@@ -6,7 +6,7 @@
 !Doxyfile
 
 # Unignore subdirectories
-#!/examples/
+!/examples/
 !/include/
 !/include/private/
 !/include/3rd_party/eiscor/
@@ -16,7 +16,24 @@
 !/src/private/
 !/src/3rd_party/eiscor/
 !/src/3rd_party/kiss_fft/
-#!/test/
+!/test/
+!/test/fnft__akns_fscatter/
+!/test/fnft__fft_wrapper/
+!/test/fnft__kdv_finvscatter/
+!/test/fnft__kdv_scatter/
+!/test/fnft_kdvv/
+!/test/fnft__manakov_fscatter/
+!/test/fnft__manakov_scatter/
+!/test/fnft_manakovv/
+!/test/fnft__misc/
+!/test/fnft__nse_finvscatter/
+!/test/fnft_nsep/
+!/test/fnft__nse_scatter/
+!/test/fnft_nsev/
+!/test/fnft_nsev_inverse/
+!/test/fnft__poly/
+!/test/fnft_version_test/
+!/test/fnft_version_test.c/
 
 # Ignore MacOS hidden files in subdirectories
 /**/*.DS_Store
@@ -36,6 +53,7 @@
 !/**/*.h
 !/**/*.h.in
 !/**/*.m
+!/**/*.inc
 
 # Explicitly reignore fnft_config.h, which is generated by cmake
 /include/fnft_config.h

.travis.yml

@@ -43,6 +43,6 @@ before_script:
     - cd build
 
 script:
-    - if dpkg -s libfftw3-dev; then cmake .. -DENABLE_FFTW=ON; else cmake ..; fi
+    - if dpkg -s libfftw3-dev; then cmake .. -DENABLE_FFTW=ON -DDEBUG=ON; else cmake .. -DDEBUG=ON; fi
     - make 
     - make test CTEST_OUTPUT_ON_FAILURE=1

CHANGELOG.md

@@ -1,14 +1,39 @@
 # Changelog
 
+## [0.5.0]
+
+### Added
+
+- The routine fnft_kdvv now can now also compute the discrete spectrum. To locate the bound states, either Newton's method or a grid search with additional Newton refinements are available.
+- A NFT routine fnft_manakovv for the Manakov equation with vanishing boundaries was added (continuous spectrum only).
+- The slow scattering methods for AKNS-type systems now include a normalization procedure to deal with numerical overflow (enabled by default).
+- The periodic NFT routine fnft_nsep now also supports pure Newton refinement.
+- The vanishing NFT routine fnft_nsev now also supports manual filtering.
+- The routine fnft__kdv_finvscatter has been added. The plan is to later use it for a fast inverse KdV NFT.
+
+### Changed
+
+- New criteria for stopping Newton iterations in fnft_nsep and fnft_nsev.
+- The tolerance for the Newton refinements in fnft_nsev can now be set by the user.
+- The default number of iterations for the Newton refinements in fnft_nsev is now 100, and the user is warned if the number was too small.
+- Reduced some tests to reduce run times.
+- The code for AKNS scattering has been overhauled.
+
+### Fixed
+
+- Several memory leaks have been fixed.
+
 ## [0.4.1] -- 2020-07-13
 
 ### Changed
 
 - Number of samples for fnft_nsep again has to be a power of two.
+- misc_resample no longer issues a warning when the signal appears to be undersampled. This gave the wrong impression that CFx_y discrizations suffer more in such scenarios than the other ones, which do not use this routine.
 
 ### Fixed
 
-- misc_downsample could return incorrect values for first_last_index[1]
+- misc_downsample could return incorrect values for first_last_index[1].
+- Some errors in fnft_nsev become meaningless when bound_states==NULL and should not be risen in that case.
 
 ## [0.4.0] -- 2020-07-08
 

CMakeLists.txt

@@ -20,8 +20,8 @@ cmake_minimum_required(VERSION 3.17.3)
 project(fnft C)
 
 set(FNFT_VERSION_MAJOR 0)
-set(FNFT_VERSION_MINOR 4)
-set(FNFT_VERSION_PATCH 1)
+set(FNFT_VERSION_MINOR 5)
+set(FNFT_VERSION_PATCH 0)
 set(FNFT_VERSION_SUFFIX "") # should not be longer than FNFT_SUFFIX_MAXLEN
 set(FNFT_VERSION ${FNFT_VERSION_MAJOR}.${FNFT_VERSION_MINOR}.${FNFT_VERSION_PATCH}${FNFT_VERSION_SUFFIX})
 
@@ -94,6 +94,7 @@ include_directories(include/3rd_party/eiscor)
 include(CheckCCompilerFlag)
 
 # configure C compiler
+set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99 -Wall -Wextra -pedantic -Werror=implicit-function-declaration -Wsign-conversion")
 if (CMAKE_COMPILER_IS_GNUCC) # gcc
   if (DEBUG)
     set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g")
@@ -112,6 +113,8 @@ if (CMAKE_COMPILER_IS_GNUCC) # gcc
   check_c_source_compiles("#pragma GCC optimize(\"Ofast\") \n int main() { int g = 1; return g; }" HAVE_PRAGMA_GCC_OPTIMIZE_OFAST)
 else()
   message(WARNING "++ Compiler is not gcc. Will try to set flags anyway.")
+  set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wconversion")
+  message("++ Enabled -Wconversion flag in the C compiler")
   if (DEBUG)
     check_c_compiler_flag("-g" HAS_C_G_FLAG)
     if (HAS_C_G_FLAG)