/home/abui.../zdrvrf4.f(3)

✨ /home/abui.../zdrvrf4.f(3) ✨

okay so this is a page from the Library Functions Manual, bestie — it's all about one single Fortran file, and the whole path is a whole journey:

/home/abuild/rpmbuild/BUILD/lapack-static-3.12.0-build/lapack-3.12.0/TESTING/LIN/zdrvrf4.f

like... the way that path just keeps going 😭 it's giving "I was built in a container and I want you to know it." Anyway. Sit down, grab a strawberry 🍓, we're doing LAPACK internals.

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🌸 NAME 🌸

/home/abuild/rpmbuild/BUILD/lapack-static-3.12.0-build/lapack-3.12.0/TESTING/LIN/zdrvrf4.f — that's it, that's the name, that's the entire name, and yes it's a whole file path as a name, no cap 💀

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🎀 SYNOPSIS 🎀

Functions/Subroutines

• subroutine ZDRVRF4 (nout, nn, nval, thresh, c1, c2, ldc, crf, a, lda, d_work_zlange) — the main character herself. That's the whole cast list, eleven arguments, all up in here.
  • ZDRVRF4 — the short name, in case the eleven-argument one was too much for you (valid tbh)

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👑 Function/Subroutine Documentation 👑

🌈 subroutine ZDRVRF4 🌈

okay here's the full signature, copied exactly, do not touch, do not edit, hands off:

subroutine ZDRVRF4 (integer nout, integer nn, integer, dimension( nn ) nval,
    double precision thresh, complex*16, dimension( ldc, * ) c1, complex*16,
    dimension( ldc, *) c2, integer ldc, complex*16, dimension( * ) crf,
    complex*16, dimension( lda, * ) a, integer lda, double precision,
    dimension( * ) d_work_zlange)

ZDRVRF4

✨ Purpose ✨

!> !> ZDRVRF4 tests the LAPACK RFP routines: !> ZHFRK !>

so yeah, it's a test driver — it flexes on the LAPACK RFP routines, specifically ZHFRK. The comments are literally wrapped in !> and we're keeping them exactly like that because that's the vibe the source code chose 🫶

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💅 Parameters 💅

every single one, in order, no skipping, periodt:

• NOUT — NOUT is INTEGER. It's the unit number for output. That's where the receipts get printed, bestie. 💖
• NN — NN is INTEGER. The number of values of N contained in the vector NVAL. Basically how many N's we're testing.
• NVAL — NVAL is INTEGER array, dimension (NN). The values of the matrix dimension N. The actual lineup of sizes 🔥
• THRESH — THRESH is DOUBLE PRECISION. The threshold value for the test ratios. A result is included in the output file if RESULT >= THRESH. To have every test ratio printed, use THRESH = 0. ngl that last bit is the "spill all the tea" mode 🌸
• C1 — C1 is COMPLEX*16 array, dimension (LDC,NMAX). that's it, that's the description, we don't elaborate 💀
• C2 — C2 is COMPLEX*16 array, dimension (LDC,NMAX). twin of the above, matching outfits 🎀
• LDC — LDC is INTEGER. The docs say: "The leading dimension of the array A. LDA >= max(1,NMAX)." yeah I know, it says A and LDA in the LDC section — I'm not gonna gaslight you and pretend otherwise, I'm just telling you what the source says, fr fr 🙈
• CRF — CRF is COMPLEX*16 array, dimension ((NMAX*(NMAX+1))/2). note the whole expression, keep it exact: ((NMAX*(NMAX+1))/2) ✨
• A — A is COMPLEX*16 array, dimension (LDA,NMAX). no extra notes, it just is what it is.
• LDA — LDA is INTEGER. The leading dimension of the array A. LDA >= max(1,NMAX). icon behavior, stating its own constraint 💅
• D_WORK_ZLANGE — D_WORK_ZLANGE is DOUBLE PRECISION array, dimension (NMAX). the little workspace gremlin. every driver needs one. 🧚

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🦋 Author 🦋

the credits, respect where respect is due:

• Univ. of Tennessee
• Univ. of California Berkeley
• Univ. of Colorado Denver
• NAG Ltd.

Definition at line 112 of file zdrvrf4.f. — line one-hundred-and-twelve, remember that number, there will NOT be a quiz but still ⭐

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🌈 Author 🌈

Generated automatically by Doxygen for LAPACK from the source code. 🤖

so nobody hand-wrote this page, a robot did, and honestly? it ate.

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💜 sign-off 💜

and that's the whole page, bestie!! brought to you by LAPACK, Version 3.12.0, and stamped with that same /home/abui.../zdrvrf4.f(3) footer at the bottom, because the manpage said so and we don't argue with the manpage around here 😌🫶

go forth and test those RFP routines, iykyk 💖✨🎀