Thanks Jattenalle. Say just look for A, then taking a gunk of memory and redim preserve when necessary is faster than redim preserve each time. But I agree, instr is plenty fast for most things. Since mine preserves the array you can set the size before passing it. So replacing the redim as long g(...

I made a Tally sub a while back. i.e. get the positions of all substrings in a string. #cmdline "-gen gcc -Wc -O2" Function tally (somestring As String,partstring As String,arr() As Long) As Ulong Redim arr(1 To 1000) Dim As Long i,j,ln,lnp,count ln=Len(somestring) lnp=Len(partstring) cou...

It's checking for the specific bitmasks that corresponds to IEEE float definitions for invalid floats. So, would I need to change that for a DOUBLE implementation? If so, how? Sorry, I didn't know there'd be different answers for every different data type. I did use the basic comparison to 1/0 and ...

Thank you. Is it possible to describe what this is accomplishing: ((*raw And &H7F800000) = &H7F800000) And (*raw And &H007FFFFF) <> 0 I mean, I get that it's doing something with bit masks. I think. It's checking for the specific bitmasks that corresponds to IEEE float definitions for i...

Overflow UINTEGER addition implementation: Function addOverflowInteger(ByVal lhs As uinteger, ByVal rhs As uinteger, byref result as uinteger) As boolean function = TRUE result = lhs + rhs Asm jc overflow mov [Function], FALSE overflow: End Asm End Function dim as uinteger result dim as uinteger l, ...

RGBA component handling is a perfect opportunity for a struct, union, and constructor: type _rgba union c as ulong type b as ubyte '// FB color byte order is BGRA g as ubyte r as ubyte a as ubyte end type end union declare constructor declare constructor(as ulong) end type constructor _rgba() end co...

The VisualFreeBasic5.9.2.b.7z download is throwing all kinds of red-flags. There's a lot of weird, unusual, things going on with the files in the 7z's. Not the least of which are: Downloading and executing code from a file cdn Dropping files into the system folders Modifying/injecting executable co...

I have a bit of a bottleneck in my code the windows "COM" API passes me a pointer to an array of ubyte and a size but I need to convert this into a string. At the moment I have a simple while loop concatenating individual bytes into the string --- NOT ideal. While browsing yesterday I saw...

What you're describing is a .dxe, you can create them with the -dylib or -dll commandline option when compiling your library.

More information regarding shared libraries in DOS can be found here in the documentation

shadow008 wrote: ↑Oct 17, 2024 16:20Thus, overflowing integer values are to be recognized and handled by the coder, not the compiler.

Except we have precedence for adding a compiler check for type overflows where it can cause issues:

Issue: The allocate family takes a uinteger as its param causing overflow and misleading results if passed larger types/values than uinteger Affects: -arch 32bit, both GAS and GCC Description: Passing a value larger than MAX_UINTEGER causes an overflow, which can cause code that should fail to succ...

Small code to display the maximum memory block size that can be dynamically allocated: [...] - With fbc 64-bit: Maximum memory block size that can be dynamically allocated: 18.91 GB OK - With fbc 32-bit: Maximum memory block size that can be dynamically allocated: 1.78 GB OK Some improvements/fixes...

I created the header file for OpenGL Mathematics for C cglm where it is? hum... i assume you added the garbage OOP to the header in a futile attempt to have aligned datatypes... but without shoving a HUGE WARNING about that anyway yeah it's past time for freebasic to properly fix their "field&...

Assuming you're still using the old -lang qb or -lang fblite, you can use OPTION EXPLICIT

In the modern, default -lang, FBC will always tell you about any missing definitions.

Welcome to the club of "People who would like to use typeof() for cool pre-parsing shenanigans but can't"! The short of it is that typeof() is in-between both a runtime and pre-processing operator, while also being neither. As you've noticed typeof() is not (Except sometimes) evaluated bef...