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tmpnam

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Fichier d'entrée / sortie
Fonctions
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Functions
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Déposer accès
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File access
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Entrée / sortie directe
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Direct input/output
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fread
fwrite
Entrée non formatée / sortie
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Unformatted input/output
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Mise en forme d'entrée / sortie
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Formatted input/output
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Fichier de positionnement
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File positioning
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ftell
fgetpos
fseek
fsetpos
rewind
Erreur de manipulation
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Error handling
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clearerr
feof
ferror
perror
Les opérations sur les fichiers
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Operations on files
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remove
rename
tmpfile
tmpnam
 
Defined in header <stdio.h>
char *tmpnam( char *filename );
Crée un nom de fichier unique et le stocke dans la chaîne de caractères pointée par filename. La fonction est capable de générer jusqu'à TMP_MAX des noms de fichiers uniques, mais tout ou partie d'entre eux peut être utilisé dans le système de fichiers et donc pas les valeurs de retour appropriés .
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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Sommaire

[modifier] Paramètres

filename -
le pointeur de chaîne de caractères à utiliser comme un tampon de résultat. Si NULL est passé, un pointeur vers une mémoire tampon interne statique est retourné .
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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[modifier] Retourne la valeur

filename si filename n'était pas NULL. Sinon, un pointeur vers un tampon interne statique est renvoyé. Si aucun fichier approprié peut être générée, est renvoyé 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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[modifier] Exemple

#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);
}

Résultat :

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

[modifier] Voir aussi

renvoie un pointeur vers un fichier temporaire
Original:
returns a pointer to a temporary file
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(fonction) [edit]