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29 lines
636 B
29 lines
636 B
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#include <cstdarg>
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#include <cstdio>
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double average(int count, ...) {
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va_list ap;
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int j;
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double sum = 0;
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va_start(ap,
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count); /* Requires the last fixed parameter (to get the address) */
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for (j = 0; j < count; j++) {
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sum += va_arg(ap, int); /* Increments ap to the next argument. */
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}
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va_end(ap);
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return sum / count;
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}
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int main(int argc, char const* argv[]) {
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printf("%f\n", average(3, 1, 2, 3));
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return 0;
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}
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