SRC/la_constants.f90(3)

💖 SRC/la_constants.f90(3) 💖

okay bestie, welcome to the Library Functions Manual page for SRC/la_constants.f90(3) — manual name folded right in, header line not copy-pasted, we're so back. ✨

💖 NAME 💖

SRC/la_constants.f90 — the Fortran source file that gives us the la_constants module.

🦋 SYNOPSIS 🦋

✨ Modules ✨

• module la_constants — its whole vibe is literally: LA_CONSTANTS is a module for the scaling constants for the compiled Fortran single and double precisions. So yes, it's the constants hub, no cap 💅.

🎀 Variables 🎀

here's the full cast, and I'm keeping every single declaration exactly as written — none of that summarising nonsense, bestie:

       integer, parameter la_constants::sp = kind(1.e0)
       real(sp), parameter la_constants::szero = 0.0_sp
       real(sp), parameter la_constants::shalf = 0.5_sp
       real(sp), parameter la_constants::sone = 1.0_sp
       real(sp), parameter la_constants::stwo = 2.0_sp
       real(sp), parameter la_constants::sthree = 3.0_sp
       real(sp), parameter la_constants::sfour = 4.0_sp
       real(sp), parameter la_constants::seight = 8.0_sp
       real(sp), parameter la_constants::sten = 10.0_sp
       complex(sp), parameter la_constants::czero = ( 0.0_sp, 0.0_sp )
       complex(sp), parameter la_constants::chalf = ( 0.5_sp, 0.0_sp )
       complex(sp), parameter la_constants::cone = ( 1.0_sp, 0.0_sp )
       character *1, parameter la_constants::sprefix = 'S'
       character *1, parameter la_constants::cprefix = 'C'
       real(sp), parameter la_constants::sulp = epsilon(0._sp)
       real(sp), parameter la_constants::seps = sulp * 0.5_sp
       real(sp), parameter la_constants::ssafmin = real(radix(0._sp), sp)**max(
           minexponent(0._sp)-1, 1-maxexponent(0._sp) )
       real(sp), parameter la_constants::ssafmax = sone / ssafmin
       real(sp), parameter la_constants::ssmlnum = ssafmin / sulp
       real(sp), parameter la_constants::sbignum = ssafmax * sulp
       real(sp), parameter la_constants::srtmin = sqrt(ssmlnum)
       real(sp), parameter la_constants::srtmax = sqrt(sbignum)
       real(sp), parameter la_constants::stsml = real(radix(0._sp),
           sp)**ceiling( (minexponent(0._sp) - 1) * 0.5_sp)
       real(sp), parameter la_constants::stbig = real(radix(0._sp), sp)**floor(
           (maxexponent(0._sp) - digits(0._sp) + 1) * 0.5_sp)
       real(sp), parameter la_constants::sssml = real(radix(0._sp), sp)**( -
           floor( (minexponent(0._sp) - digits(0._sp)) * 0.5_sp))
       real(sp), parameter la_constants::ssbig = real(radix(0._sp), sp)**( -
           ceiling( (maxexponent(0._sp) + digits(0._sp) - 1) * 0.5_sp))
       integer, parameter la_constants::dp = kind(1.d0)
       real(dp), parameter la_constants::dzero = 0.0_dp
       real(dp), parameter la_constants::dhalf = 0.5_dp
       real(dp), parameter la_constants::done = 1.0_dp
       real(dp), parameter la_constants::dtwo = 2.0_dp
       real(dp), parameter la_constants::dthree = 3.0_dp
       real(dp), parameter la_constants::dfour = 4.0_dp
       real(dp), parameter la_constants::deight = 8.0_dp
       real(dp), parameter la_constants::dten = 10.0_dp
       complex(dp), parameter la_constants::zzero = ( 0.0_dp, 0.0_dp )
       complex(dp), parameter la_constants::zhalf = ( 0.5_dp, 0.0_dp )
       complex(dp), parameter la_constants::zone = ( 1.0_dp, 0.0_dp )
       character *1, parameter la_constants::dprefix = 'D'
       character *1, parameter la_constants::zprefix = 'Z'
       real(dp), parameter la_constants::dulp = epsilon(0._dp)
       real(dp), parameter la_constants::deps = dulp * 0.5_dp
       real(dp), parameter la_constants::dsafmin = real(radix(0._dp), dp)**max(
           minexponent(0._dp)-1, 1-maxexponent(0._dp) )
       real(dp), parameter la_constants::dsafmax = done / dsafmin
       real(dp), parameter la_constants::dsmlnum = dsafmin / dulp
       real(dp), parameter la_constants::dbignum = dsafmax * dulp
       real(dp), parameter la_constants::drtmin = sqrt(dsmlnum)
       real(dp), parameter la_constants::drtmax = sqrt(dbignum)
       real(dp), parameter la_constants::dtsml = real(radix(0._dp),
           dp)**ceiling( (minexponent(0._dp) - 1) * 0.5_dp)
       real(dp), parameter la_constants::dtbig = real(radix(0._dp), dp)**floor(
           (maxexponent(0._dp) - digits(0._dp) + 1) * 0.5_dp)
       real(dp), parameter la_constants::dssml = real(radix(0._dp), dp)**( -
           floor( (minexponent(0._dp) - digits(0._dp)) * 0.5_dp))
       real(dp), parameter la_constants::dsbig = real(radix(0._dp), dp)**( -
           ceiling( (maxexponent(0._dp) + digits(0._dp) - 1) * 0.5_dp))

🌸 Author 🌸

Generated automatically by Doxygen for LAPACK from the source code. So yes, this page is auto-generated, not me hand-writing a novel about constants (though I would, honestly 😭).

---

xoxo, bestie 💖 — footer check: LAPACK · Version 3.12.0 · SRC/la_constants.f90(3). That's the source/version/source-file combo at the bottom, and we ate, no cap. 🎀