Namespace
Varianti

tmpnam

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File input/output
Funzioni
Original:
Functions
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Accesso ai file
Original:
File access
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Diretta input / output
Original:
Direct input/output
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fread
fwrite
Ingresso formattato / uscita
Original:
Unformatted input/output
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Formattato di input / output
Original:
Formatted input/output
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File di posizionamento
Original:
File positioning
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ftell
fgetpos
fseek
fsetpos
rewind
La gestione degli errori
Original:
Error handling
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clearerr
feof
ferror
perror
Le operazioni sui file
Original:
Operations on files
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remove
rename
tmpfile
tmpnam
 
Defined in header <stdio.h>
char *tmpnam( char *filename );
Crea un nome di file univoco e lo memorizza nella stringa di caratteri puntato da filename. La funzione è in grado di generare fino a TMP_MAX di nomi di file unici, ma alcuni o tutti loro potrebbe essere in uso nel file system e quindi non adatti valori di ritorno.
Original:
Creates an unique filename and stores it in character string pointed to by filename. The function is capable of generating up to TMP_MAX of unique filenames, but some or all of them may be in use in the filesystem and thus not suitable return values.
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Indice

[modifica] Parametri

filename -
puntatore alla stringa di caratteri da utilizzare come buffer risultato. Se NULL è passato, un puntatore a un buffer interno statico viene restituito .
Original:
pointer to the character string to be used as a result buffer. If NULL is passed, a pointer to an internal static buffer is returned.
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[modifica] Valore di ritorno

filename filename se non fosse NULL. In caso contrario, un puntatore a un buffer interno statico viene restituito. Se non filename adatto può essere generato, viene restituito NULL.
Original:
filename if filename was not NULL. Otherwise a pointer to an internal static buffer is returned. If no suitable filename can be generated, NULL is returned.
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[modifica] Esempio

#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
#include <stdbool.h>
 
int main(int argc, char *argv[])
{
    printf("Welcome to %s\n", argv[0]);
    printf("Called with %u arguments\n", argc - 1);
 
    char buffer[L_tmpnam] = {'\0'};
    tmpnam(buffer);
    printf(buffer);
    printf("\n");
 
    printf("Goodbye!\n");
    exit(EXIT_SUCCESS);
}

Output:

Welcome to ./main_release
Called with 0 arguments
/tmp/file6HADua
Goodbye!

[modifica] Vedi anche

restituisce un puntatore a un file temporaneo
Original:
returns a pointer to a temporary file
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(funzione) [edit]