Refactor: more light-weighted formatter library (#4114)

* update

* update 202404251532

* update 202404251625

* update 202404261301

* update 202404261409

* update 202404261911

* handle the std::complex case for format function

* it works for std::complex! but why?

* simplify the std::complex overload

* remove the use of formatter in write_HS, add some tests on FmtCore

* leave std::complex as exception

* remove the overload of std::complex

* complete the timer.cpp

* adjust the width

* correct indent in nscf_band.cpp

* correct the use of formatter in deltaspin

* recover the table in force and stress print

* correct integrated test ref a little bit and unittest ref. Also refactor two functions of UnitCell class

* modify according to suggestions

* fix a potential bug in print_tau function

* change the sequence of declaration to keep consistent with parameter initialization list

* update according to advices

* disable the default constructor of ndarray

* make code more succint

* correct typo

* add the forgotten EXPECT_EQ

---------

Co-authored-by: Mohan Chen <mohan.chen.chen.mohan@gmail.com>

source/Makefile.Objects

@@ -146,10 +146,6 @@ OBJS_BASE=abfs-vector3_order.o\
     ylm.o\
     opt_CG.o\
     opt_DCsrch.o\
-    formatter_fmt.o\
-    formatter_physfmt.o\
-    formatter_table.o\
-    formatter_contextfmt.o\
 	cubic_spline.o\
 	spherical_bessel_transformer.o\
     mixing_data.o\

source/module_base/CMakeLists.txt

@@ -51,10 +51,6 @@ add_library(
     parallel_reduce.cpp
     spherical_bessel_transformer.cpp
     cubic_spline.cpp
-    formatter_fmt.cpp
-    formatter_physfmt.cpp
-    formatter_table.cpp
-    formatter_contextfmt.cpp
     module_mixing/mixing_data.cpp
     module_mixing/mixing.cpp
     module_mixing/plain_mixing.cpp
@@ -63,15 +59,6 @@ add_library(
     ${LIBM_SRC}
 )
 
-add_library(
-  formatter
-  OBJECT
-  formatter_fmt.cpp
-  formatter_physfmt.cpp
-  formatter_table.cpp
-  formatter_contextfmt.cpp
-)
-
 add_subdirectory(module_container)
 
 if(ENABLE_COVERAGE)