| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| integer(kind=I2P), | intent(in) | :: | n | |||
| character(len=:), | intent(out), | allocatable | :: | code |
pure subroutine b64_encode_I2(n, code)
!< Encode scalar number to base64 (I2P).
!<
!<```fortran
!< use befor64
!< use penf
!< character(len=:), allocatable :: code64
!< call b64_encode(n=-203_I2P, code=code64)
!< print "(A)", code64
!<```
!=> Nf8= <<<
integer(I2P), intent(in) :: n !< Number to be encoded.
character(len=:), allocatable, intent(out) :: code !< Encoded scalar.
integer(I1P), allocatable :: nI1P(:) !< One byte integer array containing n.
integer(I4P) :: padd !< Number of padding characters ('=').
allocate(nI1P(1:((BYI2P+2)/3)*3)) ; nI1P = 0_I1P
code = repeat(' ',((BYI2P+2)/3)*4)
nI1P = transfer(n,nI1P)
padd = mod((BYI2P),3_I2P) ; if (padd>0_I4P) padd = 3_I4P - padd
call encode_bits(bits=nI1P,padd=padd,code=code)
endsubroutine b64_encode_I2