cpttrend.cpp:142:27: error: 'PI' was not declared in this scope

[ewindchung]

Hi,

Hope this email finds you well.
I hope to install R package "techchart". I have followed all instruction like installed the Rtools and devtools before running the devtools::install_github("prodipta/techchart"). However I got the following error when running the code:

Downloading GitHub repo prodipta/techchart@HEAD
── R CMD build ─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
checking for file 'C:\Users\ewind\AppData\Local\Temp\RtmpE1JDB4\remotes8d8840ac4eca\prodipta-techchart-93f9106/DESCRIPTION' ... checking for file 'C:\Users\ewind\AppData\Local\Temp\RtmpE1JDB4\remotes8d8840ac4eca\prodipta-techchart-93f9106/DESCRIPTION' ... ✔ checking for file 'C:\Users\ewind\AppData\Local\Temp\RtmpE1JDB4\remotes8d8840ac4eca\prodipta-techchart-93f9106/DESCRIPTION' (352ms)
─ preparing 'techchart':
checking DESCRIPTION meta-information ... checking DESCRIPTION meta-information ... ✔ checking DESCRIPTION meta-information
─ cleaning src
─ checking for LF line-endings in source and make files and shell scripts
─ checking for empty or unneeded directories
─ building 'techchart_0.1.0.tar.gz'

Installing package into ‘C:/Users/ewind/AppData/Local/R/win-library/4.3’
(as ‘lib’ is unspecified)

• installing source package 'techchart' ...
  ** using staged installation
  ** libs
  using C++ compiler: 'G__1.EXE (GCC) 12.2.0'
  g++ -std=gnu++17 -I"C:/PROGRA1/R/R-431.1/include" -DNDEBUG -I'C:/Users/ewind/AppData/Local/R/win-library/4.3/Rcpp/include' -I"c:/rtools43/x86_64-w64-mingw32.static.posix/include" -O2 -Wall -mfpmath=sse -msse2 -mstackrealign -c RcppExports.cpp -o RcppExports.o
  g++ -std=gnu++17 -I"C:/PROGRA1/R/R-431.1/include" -DNDEBUG -I'C:/Users/ewind/AppData/Local/R/win-library/4.3/Rcpp/include' -I"c:/rtools43/x86_64-w64-mingw32.static.posix/include" -O2 -Wall -mfpmath=sse -msse2 -mstackrealign -c cpttrend.cpp -o cpttrend.o
  cpttrend.cpp: In function 'double ols_llk(Rcpp::NumericVector, Rcpp::NumericVector, long int)':
  cpttrend.cpp:142:27: error: 'PI' was not declared in this scope
  142 | ret = double(n)/2log(2PI) + double(n)/2*log(variance) + double(n)/2;
  | ^
  make: *** [C:/PROGRA1/R/R-431.1/etc/x64/Makeconf:272: cpttrend.o] Error 1
  ERROR: compilation failed for package 'techchart'
• removing 'C:/Users/ewind/AppData/Local/R/win-library/4.3/techchart'
  Warning message:
  In i.p(...) :

From my understanding of the error description, seems the PI was not defined in the c++. Please could you shed some light about if I have done things wrong with the installation? Thank you very much.

[ddgg]

download the code, replace PI with M_PI and use devtools::install_local()