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v0.8.1
https://github.com/python/cpython
09 December 2020, 11:06:31 UTC
Revision ef4ec6ed12d6c6200a85068f60483723298b6ff4 authored by Ned Deily on 25 March 2019, 20:21:05 UTC, committed by Ned Deily on 25 March 2019, 20:21:05 UTC 
3.7.3
1 parent 3ee1266
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Tip revision: ef4ec6ed12d6c6200a85068f60483723298b6ff4 authored by Ned Deily on 25 March 2019, 20:21:05 UTC
3.7.3
Tip revision: ef4ec6e
generrmap.c 
#include <windows.h>
#include <fcntl.h>
#include <io.h>
#include <stdio.h>
#include <errno.h>

/* Extract the mapping of Win32 error codes to errno */

int main()
{
    int i;
    _setmode(fileno(stdout), O_BINARY);
    printf("/* Generated file. Do not edit. */\n");
    printf("int winerror_to_errno(int winerror)\n");
    printf("{\n    switch(winerror) {\n");
    for(i=1; i < 65000; i++) {
        _dosmaperr(i);
        if (errno == EINVAL) {
            /* Issue #12802 */
            if (i == ERROR_DIRECTORY)
                errno = ENOTDIR;
            /* Issue #13063 */
            else if (i == ERROR_NO_DATA)
                errno = EPIPE;
            else
                continue;
        }
        printf("        case %d: return %d;\n", i, errno);
    }
    printf("        default: return EINVAL;\n");
    printf("    }\n}\n");
}
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