Nimrod by Example

Re:Nimrod by Example by progman on Thursday July 17, 2014 @01:49PM (#8049020)

I am always amazed how quickly I get things done with Nimrod. It's like writing Python, having the full power of C (see below), and some of the power of Lisp (macros!), and getting the performance of C++. Nimrod actually is what I wanted Python to be.

For instance, I just need to add two lines to import C's printf and fprintf:

proc printf(frmt: CString) {.importc: "printf", nodecl, varargs, tags: [FWriteIO].}

proc fprintf(f: TFile, frmt: CString) {.importc: "fprintf", nodecl, varargs, tags: [FWriteIO].}

Now I can use these C functions seamlessly (even without parentheses):

printf "Hello %s!\n", "world"

fprintf stderr, "Error in line %d\n", $nr

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Re:Nimrod by Example by Hello71 on Thursday July 17, 2014 @10:46PM (#8051428)

    from ctypes import *
    libc = CDLL("libc.so.6")
    libc.printf("Hello %s!\n", "world")
    from sys import stderr
    libc.fprintf(stderr.fileno(), "Error in line %d\n", nr)

although I don't know why in the world you would want to use printf instead of native string formatting

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Re:Nimrod by Example by eric_bullington on Friday July 18, 2014 @03:58AM (#8052095)

I presume the printf was just to show Nimrod's easy C interop.

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