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42 lines
695 B
Nim
42 lines
695 B
Nim
discard """
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output: '''
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HELLO WORLD
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c_func
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12
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'''
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"""
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import macros, strutils
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emit("echo " & '"' & "hello world".toUpperAscii & '"')
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# bug #1025
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macro foo(icname): untyped =
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let ic = newStrLitNode($icname)
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result = quote do:
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proc x* =
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proc private {.exportc: `ic`.} = discard
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echo `ic`
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private()
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foo(c_func)
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x()
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template volatileLoad[T](x: ptr T): T =
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var res: T
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{.emit: [res, " = (*(", type(x[]), " volatile*)", x, ");"].}
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res
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template volatileStore[T](x: ptr T; y: T) =
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{.emit: ["*((", type(x[]), " volatile*)(", x, ")) = ", y, ";"].}
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proc main =
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var st: int
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var foo: ptr int = addr st
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volatileStore(foo, 12)
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echo volatileLoad(foo)
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main()
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