Alain

bug when writing PNG

9

Yes, this problem may depend on various parameters but this code don't work on my laptop for PNG (just uniformly black) on current GDL git version on U22.04 ``` pro...

important numerical issue with (at least) SQRT() & ALOG() for negative inputs (due to change in IDL 8.5.1 in NaN for MIN/MAX)

5

And going back in the past all GDL versions tested since 1.0.0 in august 2021 are buggy ``` GDL> rr=findgen(1000)-10 GDL> ee=alog(rr) GDL> print, min(ee), max(ee) -NaN -NaN GDL> ee=sqrt(rr)...

CHOLDC/CHOLSOL tests are missing

2

Despite the code existed since while for those 4 functions, today no occurrence for CHOLDC/CHOLSOL and LA_CHOLDC/LA_CHOLSOL in the testsuite. I am ready to format and push some code but...

MEMORY() return strange values on Linux

2

MEMORY() is not working fine on Debian 10 and U14.04 & U20.04 ``` GDL> a=FLTARR(1024,1024, 1000) GDL> print, MEMORY(/cur) -98197504 GDL> print, MEMORY(/cur,/l64) -98197504 GDL> help,/mem heap memory used: 18446744073611354112,...

@GillesDuvert mentioned that HISTOGRAM() in IDL (#1303) gives strange result. I report here another issue. ``` IDL> a=make_array(10, /float, /long) IDL> help, a A STRING = Array[10] IDL> a=make_array(10, /float,...

script "build_gdl.sh" not working on OSX 11.5 on M1 (Brew issue ?)

2

We do spend a lot of time to try to compile current GDL git version and also PR #1278 on @Jeanne-jw laptop, a up-to-date Mac running Big Sur 11.5 with...

slow readf in for loop

1

Reading an ASCII file, GDL is 3 to 5 slower than IDL. Reading "src/widget.cpp" with the code joined : ``` idl 8.8 : 0.003 idl 8.6 : 0.005 gdl 0.9.9...

Please remember that, _today_ TIME_TEST4 is faster in current GDL than in IDL 8.8 But for most of the operations, on a 48-core machine, with : ` TEST_OP_POWER, 1E8`, performances...

Rumors of limited accuracy for TIC/TOC & SYSTIME :persevere: Looking for details in C++11 ref, and reading systime code in _basic_fun_cl.cpp_ may be it is time to move from ```...

in LEGENDRE, if second of third par. are arrays, they are not processed

2

(bug discovered by making few cleanings in `basic_fun_cl.cpp`) e.g. : ``` IDL> print, LEGENDRE('.2', [12b,1b],/dou) -0.18513690 0.20000000 IIDL> print, LEGENDRE(.2, [12b,1b],[1,0],/dou) 1.6814271 0.20000000 [...] GDL> print, LEGENDRE(.2, [12b,1b],/dou) -0.18513691 GDL>...