TESTING/LIN/cdrvrf3.f(3)

🦋 TESTING/LIN/cdrvrf3.f — like, the manual page, but make it make sense

Okay bestie, so this is a page from the LAPACK manual, specifically TESTING/LIN/cdrvrf3.f(3) — it lives in the Library Functions Manual section and honestly? It's giving test-driver energy and I'm obsessed. ✨

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✨ NAME ✨

TESTING/LIN/cdrvrf3.f — that's the file, that's the whole name, no notes. 💅

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🎀 SYNOPSIS 🎀

So under "Functions/Subroutines" we got this one, and it's the main character:

subroutine cdrvrf3 (nout, nn, nval, thresh, a, lda, arf, b1, b2,
    s_work_clange, c_work_cgeqrf, tau)

CDRVRF3 — that's the name, say it with your chest. 🫶

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💖 Function/Subroutine Documentation 💖

Here's the full signature, character for character, no edits, not one:

subroutine cdrvrf3 (integer nout, integer nn, integer, dimension( nn ) nval,
    real thresh, complex, dimension( lda, * ) a, integer lda, complex,
    dimension( * ) arf, complex, dimension( lda, * ) b1, complex, dimension(
    lda, * ) b2, real, dimension( * ) s_work_clange, complex, dimension( * )
    c_work_cgeqrf, complex, dimension( * ) tau)

CDRVRF3 — yes, again, because she's that girl. 👑

🌸 Purpose 🌸

!> !> CDRVRF3 tests the LAPACK RFP routines: !> CTFSM !>

So literally, this subroutine's whole job is testing the LAPACK RFP routines, specifically CTFSM. That's it, that's the purpose, and she ate. 🔥

🌈 Parameters 🌈

Every single one, bestie, in order, no skipping:

• NOUT — NOUT is INTEGER. The unit number for output. iykyk, it's where the printouts go. 💻
• NN — NN is INTEGER. The number of values of N contained in the vector NVAL. So it's the count of the count, lowkey meta. 🙈
• NVAL — NVAL is INTEGER array, dimension (NN). The values of the matrix dimension N. Iconic little list 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. So if you want everything printed, zero it out. Periodt. 💅
• A — A is COMPLEX*16 array, dimension (LDA,NMAX). That's it, that's the description, she's low maintenance. 💜
• LDA — LDA is INTEGER. The leading dimension of the array A. And this is important: LDA >= max(1,NMAX). Don't come for me, that's the rule. ⭐
• ARF — ARF is COMPLEX array, dimension ((NMAX*(NMAX+1))/2). Look at that triangular packed math, she's built different. 🎀
• B1 — B1 is COMPLEX array, dimension (LDA,NMAX). Main character number one of the B duo. 🦋
• B2 — B2 is COMPLEX array, dimension (LDA,NMAX). And her sister. two icons, one vibe. 🌸
• S_WORK_CLANGE — S_WORK_CLANGE is REAL array, dimension (NMAX). A whole REAL workspace, get you a friend who works like this. 💖
• C_WORK_CGEQRF — C_WORK_CGEQRF is COMPLEX array, dimension (NMAX). Another workspace, this one's complex (literally). 😭
• TAU — TAU is COMPLEX array, dimension (NMAX). Yes bestie, TAU. She's a scalar-ish queen in array form. 👑

🧚 Author 🧚

Credited to all these legends:

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

And this is the moment: Definition at line 117 of file cdrrf3.f — wait, no, re-read it bestie, it's cdrvrf3.f. Line 117. Noted. 🫶

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👑 Author 👑

The page itself says it was generated automatically by Doxygen for LAPACK from the source code. So nobody hand-wrote this, it's just Doxygen doing her thing. 🙈

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That's the whole page, no crumbs left. LAPACK, Version 3.12.0, dated TESTING/LIN/cdrvrf3.f(3) — mwah, slay, bye bestie! 💅✨🎀