File: pm.c
Original provenience: unknown
Source: HPEC Challenge Benchmark Suite

2016-04-20:
- Fixed some compiler warnings.
- Moved main to end of file.

2016-03-15:
- Renamed preprocessor defines MIN_NOISE and LOG10 to pm_MIN_NOISE and
  pm_LOG10.
- Made sure that pm_return returns value 0 upon success.

2016-01-22:
- Moved math functions pm_log10f, pm_pow10f, pm_fabs, pm_floor, pm_ceil into
  own files pm_math.h and pm_libm.c.
- Moved associated static global variables pm_log_coeff and pm_pow_coeff into
  file pm_libm.c.
- Renamed function pm_init_coeff to pm_math_init and moved its call out of
  pm_init_data.
- Moved stdlib functions pm_memcpy and pm_memset into own files pm_string.h
  and pm_stdlib.c.
- Renamed input.c to pm_input.c

2016-01-21:
- Changed pm_ceil and pm_floor such that the expression !arg is not used
  anymore to resolve compiler warning "implicit conversion turns
  floating-point number into integer". However, NaN and infinity are not
  handled correctly.
- Cast results of pm_ceil and pm_floor to int instead of the functions
  themselves to resolve compiler warning about "cast from function call of
  type 'float' to non-matching type 'int'".
- Cast parameter c of pm_memset to unsigned char to resolve compiler warning
  that "implicit conversion loses integer precision".
- Cast result of sizeof operator in call to pm_memset to int to resolve
  compiler warnings that "implicit conversion changes signedness".
- Converted type of local variables match_index and min_MSE_index in pm_kernel,
  as well as array base type of member size in pm_float_array_t from
  unsigned int to int to resolve compiler warnings that "implicit conversion
  changes signedness".
- Removed register storage class for local variables in pm_kernel.

2016-01-07:
- Added original name to generic TACLeBench header.
- Added forward declarations for all functions.
- Renamed function main to pm_main.
- Renamed function init to pm_init_data.
- Renamed function clean to pm_clean.
- Changed all //-style comments to /* */-style comments
- Renamed function fabs_ to pm_fabs.
- Renamed function setcoeff to pm_init_coeff.
- Renamed pow10fpm to pm_pow10f.
- Renamed log10fpm to pm_log10f.
- Renamed my_floor to pm_floor.
- Renamed my_ceil to pm_ceil.
- Renamed my_memcpy to pm_memcpy.
- Renamed my_memset to pm_memset.
- Renamed function pm to pm_kernel.
- Added function pm_init that handles the initialization of the math library
  functions.
- Added function pm_return that handles the original return value of main.
- Added new function main that first calls pm_init, then pm_main and finally
  returns the return value of pm_return.
- Replaced local variables pmdata, lib, patternand result in main with global
  static variables pm_data, pm_lib, pm_pattern and pm_result.
- Renamed global variables init_array_1, init_array_2, init_array_3,
  init_array_4, init_array_5, init_array_6, init_array_7 and init_array_8 to
  pm_init_array_1, pm_init_array_2, pm_init_array_3, pm_init_array_4,
  pm_init_array_5, pm_init_array_6, pm_init_array_7 and pm_init_array_8 and
  made them static.
- Renamed global variables pow_coeff and log_coeff to pm_pow_coeff and
  pm_log_coeff and made them static.
- Tested conformance to C90 via
  clang -fsyntax-only -Weverything -Wno-unknown-pragmas -pedantic -std=c90

2016-01-06:
- Applied TACLeBench formatting rules via
  astyle --options=doc/example/astylerc.txt

2015-12-08:
- Replaced comments in line 1-37 with generic TACLeBench header.
- Introduced comments to split file in sections for type definition, forward
  declarations, global variables, initialization-related and
  return-value-related functions, core benchmark functions, and main routine.
- Moved BSD 3-clause license comment to own file license.txt.
- Renamed global variables lib_data and pattern_data to pm_lib_data and
  pm_pattern_data.
- Renamed functions read_lib and read_pattern to pm_init_lib and
  pm_init_pattern.
- Removed unnecessary return statements.
- Inlined definition of types PmData and PcaCArrayFloat from PcaCArray.h.
- Renamed type PmData to pm_data_t.
- Renamed type PcaCArrayFloat to pm_float_array_t.

2007-10-18 (Rathijit Sen, Universität des Saarlandes):
- Removed dynamic alloc, file I/O.