March 2020
Intermediate to advanced
406 pages
8h 39m
English
Content preview from Hands-On High Performance with Go
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Build constraints
If you'd like to add a build constraint to your Go build, you can add a comment line at the beginning of the file that's only preceded by blank lines and other comments. The form of this comment is // +build darwin,amd64,!cgo, android,386,cgo.
This corresponds to a boolean output of darwin AND amd64 AND (NOT cgo)) OR (android AND 386 AND cgo.
This needs to proceed with the package declaration with a newline between the build constraint and the package initialization. This takes the following form:
// +build [OPTIONS]package main
The complete list of build constraints can be found at https://golang.org/pkg/go/build/#hdr-Build_Constraints. This list includes the following build constraints:
- GOOS
- GOARCH
- Compiler type (gc
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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