Call a function in a shared library: Difference between revisions
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#.(SB-SYS:INT-SAP #X00650FD0)</lang> |
#.(SB-SYS:INT-SAP #X00650FD0)</lang> |
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=={{header|Crystal}}== |
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<lang ruby>libm = LibC.dlopen("libm.so", LibC::RTLD_LAZY) |
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libm.value.not_nil! |
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sqrtptr = LibC.dlsym(libm, "sqrt") |
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sqrtptr.value.not_nil! |
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sqrtproc = Proc(Float64, Float64).new sqrtptr, Pointer(Void).null |
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puts "the sqrt of 4 is #{sqrtproc.call(4.0)}" |
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LibC.dlclose(libm)</lang> |
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=={{header|D}}== |
=={{header|D}}== |
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