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13 lines
350 B
13 lines
350 B
#include <stdio.h>
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#include <errno.h>
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#include <string.h>
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// It isn't required that errno be zero on entry to main, but
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// for tidiness' sake, if we ever do things during startup that
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// do set errno, we should reset it for tidiness' sake.
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int main(void) {
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int n = errno;
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printf("initial errno is %d: %s\n", n, strerror(n));
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return 0;
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}
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