tmpnam

 

C

Lingua

Tipo di supporto

Gestione della memoria dinamica

La gestione degli errori

Programma di utilità

Data e ora utilità

Stringhe libreria

Algoritmi

Numeri

Ingresso / uscita supporto

Localizzazione supporto

Thread di supporto(C11)

Operazioni atomiche(C11)

 

File input/output

Funzioni Original: Functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Accesso ai file Original: File access The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
fopen freopen fclose fflush	fwide setbuf setvbuf
Diretta input / output Original: Direct input/output The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
fread
fwrite
Ingresso formattato / uscita Original: Unformatted input/output The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
fgetc fgets fputc fputs getchar gets putchar puts ungetc	fgetwc fgetws fputwc fputws getwchar putwchar ungetwc
Formattato di input / output Original: Formatted input/output The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
scanf fscanf sscanf vscanf vfscanf vsscanf (C99) (C99) (C99) printf fprintf sprintf snprintf (C99) vprintf vfprintf vsprintf vsnprintf (C99)	wscanf fwscanf swscanf vwscanf vfwscanf vswscanf (C99) (C99) (C99) wprintf fwprintf swprintf vwprintf vfwprintf vswprintf
File di posizionamento Original: File positioning The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
ftell
fgetpos
fseek
fsetpos
rewind
La gestione degli errori Original: Error handling The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
clearerr
feof
ferror
perror
Le operazioni sui file Original: Operations on files The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
remove
rename
tmpfile
tmpnam

 

Elemento definito nell'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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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. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Valore di ritorno

filenamefilename 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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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!

Vedi anche

tmpfile	restituisce un puntatore a un file temporaneo Original: returns a pointer to a temporary file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
C++ documentation for tmpnam