January 7, 2024 - In this tutorial we explored the cgo basics and how to get started by writing simple codes. We learned how to call a C code from Go and vice versa using some simple examples. We also covered a set of frequently asked questions by beginners around ...

October 9, 2023 - You probably ever heard about CGO, and that Go can use shared libraries from your system to use the power of C. But how? I will explain the process, and you'll see that it's not that complicated – in fact, it's quite simple. This tutorial is made for very beginners, but you need to have a bit of knowledge in C programming.

$ go build # github.com/sayden/c-bindings /tmp/go-build329491076/github.com/sayden/c-bindings/_obj/hello.o: In function `Hello': ../../go/src/github.com/sayden/c-bindings/hello.c:5: multiple definition of `Hello' /tmp/go-build329491076/github.com/sayden/c-bindings/_obj/main.cgo2.o:/home/mariocaster/go/src/github.com/sayden/c-bindings/hello.c:5: first defined here /tmp/go-build329491076/github.com/sayden/c-bindings/_obj/sum.o: In function `sum': ../../go/src/github.com/sayden/c-bindings/sum.c:5: multiple definition of `sum` /tmp/go-build329491076/github.com/sayden/c-bindings/_obj/main.cgo2.o:/h

March 17, 2011 - The call to C.CString returns a pointer to the start of the char array, so before the function exits we convert it to an unsafe.Pointer and release the memory allocation with C.free. A common idiom in cgo programs is to defer the free immediately after allocating (especially when the code that follows is more complex than a single function call), as in this rewrite of Print:

Its not very straightforward how to do this though. In this tutorial, we’ll go over creating a simple C function, and calling it from go. After that, we’ll move on to a slightly more complex example involving C structs. Keep in mind that using cgo is not always best the course to take.

$ go build # github.com/sayden/c-bindings /tmp/go-build329491076/github.com/sayden/c-bindings/_obj/hello.o: In function `Hello': ../../go/src/github.com/sayden/c-bindings/hello.c:5: multiple definition of `Hello' /tmp/go-build329491076/github.com/sayden/c-bindings/_obj/main.cgo2.o:/home/mariocaster/go/src/github.com/sayden/c-bindings/hello.c:5: first defined here /tmp/go-build329491076/github.com/sayden/c-bindings/_obj/sum.o: In function `sum': ../../go/src/github.com/sayden/c-bindings/sum.c:5: multiple definition of `sum` /tmp/go-build329491076/github.com/sayden/c-bindings/_obj/main.cgo2.o:/h

CGo tutorial from https://karthikkaranth.me/blog/calling-c-code-from-go/ - kenschneider18/cgo-tutorial

February 14, 2026 - The article will first describe the principles of Cgo, and then describe the two methods of calling.

April 7, 2026 - In both cases the regular expression must match a full argument: to allow -mfoo=bar, use CGO_CFLAGS_ALLOW='-mfoo.*', not just CGO_CFLAGS_ALLOW='-mfoo'. Similarly named variables control the allowed CPPFLAGS, CXXFLAGS, FFLAGS, and LDFLAGS.

package stfl /* #cgo pkg-config: stfl #cgo LDFLAGS: -lncursesw #include <stdlib.h> #include <stfl.h> */ import "C"

A tutorial project showing how to use C static and dynamic libraries (.a and .so) with Golang - lxwagn/using-go-with-c-libraries

C code can call exported Go functions with their explicit name. But if a C-program wants a function pointer, a gateway function has to be written. This is because we can't take the address of a Go function and give that to C-code since the cgo tool will generate a stub in C that should be called.

Awesome Tutorial · Awesome YouTube · Arrays · Base64 Encoding · Best practices on project structure · Branching · Build Constraints · cgo · Cgo: First steps tutorial · cgo · Channels · Closures · Concurrency · Console I/O · Constants · Context ·

Examples of calling C code from Go. Contribute to andreiavrammsd/cgo-examples development by creating an account on GitHub.

CANCELED: IMOP: a Self-Stabilizing Source-to-Source Compiler Framework for OpenMP C Saturday (March 1) - Morning ANT-ACE Compiler Tutorial Saturday (March 1) - Afternoon Ninth LLVM Performance Workshop at CGO Saturday (March 1) - All Day Developing High-Peformance DSLs with BuildIt Sunday (March 2) - Morning 3rd Languages, Architectures, and Tools for Heterogeneous Computing (LATHC) Workshop Sunday (March 2) - Morning 5th C4ML Workshop Sunday (March 2) - All Day Call for Workshops and Tutorials The 2025 IEEE/ACM International Symposium on Code Generation and Optimization (CGO), to be host ...

October 10, 2023 - The Go programming language, commonly known as Golang, is designed to be simple and efficient. However, there are times when you might need to leverage existing C libraries or embed Go into other languages. This tutorial dives deep into the world of CGO — Go’s gateway to the world of C ...

C code can call exported Go functions with their explicit name. But if a C-program wants a function pointer, a gateway function has to be written. This is because we can’t take the address of a Go function and give that to C-code since the cgo tool will generate a stub in C that should be called.