## The Julia Language ## julia V1.10.10 The Julia Project July 1, 2025 ## Contents Contents I Manual 1 Julia 1.10 Documentation 1.1 Important Links 1.2 Introduction 1.3 Julia Compared to operations ..... 298 23.4 Tasks and events ..... 298 24 Multi-Threading ..... 300 24.1 Starting Julia with multiple threads ..... 300 24.2 Threadpools ..... 301 24.3 Communication and synchronization and Fortran Code .344 27.1 Creating C-Compatible Julia Function Pointers .346 27.2 Mapping C Types to Julia .348 27.3 Mapping C Functions to Julia .354 27.4 C Wrapper Examples .356 27.5 Fortran

## The Julia Language ## julia V1.11.4 The Julia Project April 8, 2025 ## Contents Contents I Manual 1 Julia 1.11 Documentation 1.1 Important Links 1.2 Introduction 1.3 Julia Compared to task operations ..... 316 24.4 Tasks and events ..... 316 25 Multi-Threading 318 25.1 Starting Julia with multiple threads 318 25.2 Threadpools 320 25.3 The @threads Macro 321 25.4 Communication and Fortran Code 365 28.1 Creating C-Compatible Julia Function Pointers 367 28.2 Mapping C Types to Julia 369 28.3 Mapping C Functions to Julia 376 28.4 C Wrapper Examples 378 28.5 Fortran Wrapper

## The Julia Language ## julia V1.10.9 The Julia Project April 8, 2025 ## Contents Contents I Manual 1 Julia 1.10 Documentation 1.1 Important Links 1.2 Introduction 1.3 Julia Compared to operations ..... 298 23.4 Tasks and events ..... 298 24 Multi-Threading ..... 300 24.1 Starting Julia with multiple threads ..... 300 24.2 Threadpools ..... 301 24.3 Communication and synchronization Code ..... 344 27.1 Creating C-Compatible Julia Function Pointers ..... 346 27.2 Mapping C Types to Julia ..... 348 27.3 Mapping C Functions to Julia ..... 354 27.4 C Wrapper Examples ..... 356

## The Julia Language ## julia V1.9.3 The Julia Project August 25, 2023 ## Contents Contents I Manual 1 Julia 1.9 Documentation 2 Getting Started 2.1 Resources 3 Variables 3.1 Allowed operations ..... 296 23.4 Tasks and events ..... 296 24 Multi-Threading ..... 298 24.1 Starting Julia with multiple threads ..... 298 24.2 Threadpools ..... 299 24.3 Communication and synchronization Code ..... 341 27.1 Creating C-Compatible Julia Function Pointers ..... 343 27.2 Mapping C Types to Julia ..... 345 27.3 Mapping C Functions to Julia ..... 351 27.4 C Wrapper Examples ..... 353

## The Julia Language ## julia V1.8.1 The Julia Project September 13, 2022 ## Contents Contents I Manual 1 Julia 1.8 Documentation 2 Getting Started 3 Variables 3.1 Allowed Variable Names operations ..... 285 23.4 Tasks and events ..... 285 24 Multi-Threading ..... 287 24.1 Starting Julia with multiple threads ..... 287 24.2 Data-race freedom ..... 288 24.3 The @threads Macro .... Code ..... 328 27.1 Creating C-Compatible Julia Function Pointers ..... 331 27.2 Mapping C Types to Julia ..... 332 27.3 Mapping C Functions to Julia ..... 338 27.4 C Wrapper Examples ..... 341

## The Julia Language ## julia V1.8.3 The Julia Project November 19, 2022 ## Contents Contents 1 Manual 1 Julia 1.8 Documentation 2 Getting Started 3 Variables 3.1 Allowed Variable Names operations ..... 285 23.4 Tasks and events ..... 285 24 Multi-Threading ..... 287 24.1 Starting Julia with multiple threads ..... 287 24.2 Data-race freedom ..... 288 24.3 The @threads Macro .... Code ..... 328 27.1 Creating C-Compatible Julia Function Pointers ..... 331 27.2 Mapping C Types to Julia ..... 332 27.3 Mapping C Functions to Julia ..... 338 27.4 C Wrapper Examples ..... 341

# The Julia Language The Julia Project November 20, 2021 ## Contents Contents 1 Manual 1 Julia 1.6 Documentation 2 Getting Started 2.1 Resources 3 Variables 3.1 Allowed Variable Names 23.3 More task operations 254 23.4 Tasks and events 255 24 Multi-Threading 256 24.1 Starting Julia with multiple threads 256 24.2 Data-race freedom 257 24.3 The @threads Macro 258 24.4 Atomic Code ..... 294 27.1 Creating C-Compatible Julia Function Pointers ..... 296 27.2 Mapping C Types to Julia ..... 298 27.3 Mapping C Functions to Julia ..... 305 27.4 C Wrapper Examples ..... 307

## The Julia Language ## julia V1.9.0 The Julia Project May 9, 2023 ## Contents Contents I Manual 1 Julia 1.9 Documentation 2 Getting Started 2.1 Resources 3 Variables 3.1 Allowed Variable operations ..... 296 23.4 Tasks and events ..... 296 24 Multi-Threading ..... 298 24.1 Starting Julia with multiple threads ..... 298 24.2 Threadpools ..... 299 24.3 Communication and synchronization and Fortran Code 340 27.1 Creating C-Compatible Julia Function Pointers 342 27.2 Mapping C Types to Julia 344 27.3 Mapping C Functions to Julia 350 27.4 C Wrapper Examples 352 27.5 Fortran Wrapper

## The Julia Language ## julia V1.8.0 The Julia Project August 19, 2022 ## Contents Contents I Manual 1 Julia 1.8 Documentation 2 Getting Started 2.1 Resources 3 Variables 3.1 Allowed operations ..... 285 23.4 Tasks and events ..... 285 24 Multi-Threading ..... 287 24.1 Starting Julia with multiple threads ..... 287 24.2 Data-race freedom ..... 288 24.3 The @threads Macro .... Code ..... 328 27.1 Creating C-Compatible Julia Function Pointers ..... 331 27.2 Mapping C Types to Julia ..... 332 27.3 Mapping C Functions to Julia ..... 338 27.4 C Wrapper Examples ..... 341

## The Julia Language The Julia Project January 22, 2019 ## Contents Contents I Home 1 1 Julia 1.1 Documentation 3 Introduction 3 II Julia v1.1 Release Notes 5 2 New language features 7 306 34 Calling C and Fortran Code 307 34.1 Creating C-Compatible Julia Function Pointers 309 34.2 Mapping C Types to Julia 310 Auto-conversion: 311 Type Correspondences: 311 Bits Types 311 Values 316 Memory Ownership 317 When to use T, Ptr{T} and Ref{T} 317 34.3 Mapping C Functions to Julia 317 ccall / @cfunction argument translation guide 317 ccall / @cfunction return type translation