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Tmpfile

Item Value Header filestdio.h DeclarationFILE *tmpfile(void); Functionopens a temporary binary file for read/write operations and returns a pointer to the stream. Returnreturns a null pointer on failure. The temporary file created by tmpfile() is automatically removed when the file is closed or when the program terminates. You can open TMP_MAX temporary files (up to the limit set by FOPEN_MAX). #include <stdio.h> int main(void){   FILE *temp;   if((temp=tmpfile())==NULL) {     printf("Cannot open temporary work file.\n");     exit(1);   } }