Compile-time flags Querying flags Compiler-provided flags Target platform flags Architecture Vendor Operating System ABI Compiler options User-provided flags Stdlib feature...

fun Function names Types in C Bindings fun A fun declaration inside a lib binds to a C function. lib C # In C: double cos(double x) fun cos ( value : Float64 ) ...

fun Function names Types in C Bindings fun A fun declaration inside a lib binds to a C function. lib C # In C: double cos(double x) fun cos ( value : Float64 )...

fun Function names Types in C Bindings fun A fun declaration inside a lib binds to a C function. lib C # In C: double cos(double x) fun cos ( value : Float64 ) ...

C语言绑定 Lib fun C语言绑定 crystal允许你直接调用现成的C库。此外，crystal还提供了像out, to_unsafe之类的操作，使用绑定是非常便利的。 Lib lib声明了一组C函数和类型。 @[ Link ( "pcre" )] lib LibPCRE end 一个lib的名称通常以Lib开头，...

Crystal Platform Support Tier 1 Tier 2 Tier 3 Crystal Platform Support The Crystal compiler runs on, and compiles to, a great number of platforms, though not all platforms ar...

Crystal Platform Support Tier 1 Tier 2 Tier 3 Crystal Platform Support The Crystal compiler runs on, and compiles to, a great number of platforms, though not all platforms a...

Control Flow Primitive Types Nil Bool Boolean Algebra Truthiness Control Flow Conditionals Else More branches Control Flow Primitive Types Nil The most simplistic ...

Assignment Method as assignment target Combined assignments Chained assignment Multiple assignment Underscore Assignment An assignment expression assigns a value to a named...

Assignment Method as assignment target Combined assignments Chained assignment Multiple assignment Underscore Assignment An assignment expression assigns a value to a name...