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path: root/Help/guide/tutorial/MultiPackage/MathFunctions/MathFunctions.cxx

blob: 01453006297b89b3933988e755bf9bc90537915e (plain)


#include "MathFunctions.h"

#include <cmath>

#ifdef USE_MYMATH
#  include "mysqrt.h"
#endif

namespace mathfunctions {
double sqrt(double x)
{
#ifdef USE_MYMATH
  return detail::mysqrt(x);
#else
  return std::sqrt(x);
#endif
}
}

"""Finds and returns a module in the local dist/checkout. """ modpath = os.path.join( os.path.dirname(os.path.dirname(__file__)), "Lib") return imp.load_module(modname, *imp.find_module(modname, [modpath])) else: def find_module(modname): """Finds and returns a module in the local dist/checkout. """ modpath = os.path.join( os.path.dirname(os.path.dirname(__file__)), "Lib", modname + ".py") return SourceFileLoader(modname, modpath).load_module() def write_contents(f): """Write C code contents to the target file object. """ opcode = find_module('opcode') targets = ['_unknown_opcode'] * 256 for opname, op in opcode.opmap.items(): targets[op] = "TARGET_%s" % opname f.write("static void *opcode_targets[256] = {\n") f.write(",\n".join([" &&%s" % s for s in targets])) f.write("\n};\n") def main(): if len(sys.argv) >= 3: sys.exit("Too many arguments") if len(sys.argv) == 2: target = sys.argv[1] else: target = "Python/opcode_targets.h" with open(target, "w") as f: write_contents(f) print("Jump table written into %s" % target) if __name__ == "__main__": main()