45 строки
1,1 КиБ
Go
45 строки
1,1 КиБ
Go
package main
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/*
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int fortytwo(void);
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#include "main.h"
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int mul(int, int);
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*/
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import "C"
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import "unsafe"
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func main() {
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println("fortytwo:", C.fortytwo())
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println("add:", C.add(C.int(3), 5))
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var x C.myint = 3
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println("myint:", x, C.myint(5))
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println("myint size:", int(unsafe.Sizeof(x)))
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var y C.longlong = -(1 << 40)
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println("longlong:", y)
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println("global:", C.global)
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var ptr C.intPointer
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var n C.int = 15
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ptr = C.intPointer(&n)
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println("15:", *ptr)
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C.store(25, &n)
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println("25:", *ptr)
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cb := C.binop_t(C.add)
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println("callback 1:", C.doCallback(20, 30, cb))
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cb = C.binop_t(C.mul)
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println("callback 2:", C.doCallback(20, 30, cb))
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// more globals
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println("bool:", C.globalBool, C.globalBool2 == true)
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println("float:", C.globalFloat)
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println("double:", C.globalDouble)
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println("complex float:", C.globalComplexFloat)
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println("complex double:", C.globalComplexDouble)
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println("complex long double:", C.globalComplexLongDouble)
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println("struct:", C.globalStruct.s, C.globalStruct.l, C.globalStruct.f)
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}
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//export mul
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func mul(a, b C.int) C.int {
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return a * b
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}
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