How can I check whether a file exists? I want to warn the user if a requested input file is missing.
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Where is volatile variable stored?
main() { char as[] = "\\0\0"; int i = 0; do{ switch( as[i++]) {case '\\' : printf("A"); break; case 0 : printf("B"); break; default : printf("C"); break; }} while(i<3); }
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