xerbla_array.f(3)

🎀 NAME 🎀

xerbla_array.f — this is the whole page, bestie, and it's from the LAPACK manual. It's all about the xerbla_array function/subroutine. ✨

🌈 SYNOPSIS 🌈

Functions/Subroutines

• subroutine xerbla_array (SRNAME_ARRAY, SRNAME_LEN, INFO) — the one and only XERBLA_ARRAY, slay.

🦋 Function/Subroutine Documentation 🦋

subroutine xerbla_array (character(1), dimension(srname_len) SRNAME_ARRAY, integer SRNAME_LEN, integer INFO)

XERBLA_ARRAY — okay so this is the full signature, and it's giving exactly what it needs to give. 💅

🌸 Purpose

XERBLA_ARRAY assists other languages in calling XERBLA, the LAPACK and BLAS error handler. Rather than taking a Fortran string argument as the function's name, XERBLA_ARRAY takes an array of single characters along with the array's length. Then XERBLA_ARRAY copies up to 32 characters of that array into a Fortran string and passes that to XERBLA. If called with a non-positive SRNAME_LEN, XERBLA_ARRAY will call XERBLA with a string of all blank characters. 🫶

Say some macro or other device makes XERBLA_ARRAY available to C99 by a name lapack_xerbla and with a common Fortran calling convention. Then a C99 program could invoke XERBLA via:

               {
                 int flen = strlen(__func__);
                 lapack_xerbla(__func__, &flen, &info);
               }

Providing XERBLA_ARRAY is not necessary for intercepting LAPACK errors. XERBLA_ARRAY calls XERBLA. No cap. 🧚

🎀 Parameters

• SRNAME_ARRAY — SRNAME_ARRAY is CHARACTER(1) array, dimension (SRNAME_LEN). It's the name of the routine which called XERBLA_ARRAY.
• SRNAME_LEN — SRNAME_LEN is INTEGER. It's the length of the name in SRNAME_ARRAY.
• INFO — INFO is INTEGER. It's the position of the invalid parameter in the parameter list of the calling routine.

👑 Author

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

🍓 Date

December 2016 — iconic.

Definition at line 92 of file SRC/xerbla_array.f.

💜 Author

Generated automatically by Doxygen for LAPACK from the source code. That's the meta-author, bestie, not the people above. 🙈

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Cute little sign-off: this page comes from LAPACK source, version 3.8.0, dated Tue Nov 14 2017, and its title/manual line is xerbla_array.f(3) from the LAPACK manual. Bye bestie, go be a main character with XERBLA_ARRAY! 💖✨