cygwin arg passing

a.c

#include <Windows.h>
#include <stdio.h>

int main(void) {
    LPCWSTR applicationName = L"C:\\cygwin64\\bin\\echo.exe";
    LPWSTR commandLine = L"-- -FOO=\\\"BAR\\\"";

    printf("# Using CommandLineToArgvW:\n");
    LPWSTR *arg_list;
    int arg_count;
    WCHAR fullCommandLine[MAX_PATH] = L"";
    wcscat(fullCommandLine, applicationName);
    wcscat(fullCommandLine, L" ");
    wcscat(fullCommandLine, commandLine);
    arg_list = CommandLineToArgvW(fullCommandLine, &arg_count);
    for(int i=0; i<arg_count; i++)
        printf("%d: %ws\n", i, arg_list[i]);

    printf("# Using CreateProcessW and cygwin echo.exe:\n");
    BOOL ret;
    PROCESS_INFORMATION pi;
    STARTUPINFOW si;
    si.cb = sizeof(si);
    ZeroMemory(&si, sizeof(si));
    ZeroMemory(&pi, sizeof(pi));
    ret = CreateProcessW(
        applicationName, commandLine, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi);

    return 0;
}

output.txt

# Using CommandLineToArgvW:
0: C:\cygwin64\bin\echo.exe
1: --
2: -FOO="BAR"
# Using CreateProcessW and cygwin echo.exe:
-FOO=\BAR"