tmpnam

 

C

Linguagem

Digite apoio

Gerenciamento de memória dinâmica

De tratamento de erros

Utilidades do programa

Utilitários de data e hora

Biblioteca cordas

Algoritmos

Numéricos

Entrada / saída de apoio

Suporte de localização

Apoio discussão (C11)

Operações atômicas (C11)

 

File input/output

Funções Original: Functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Arquivo de acesso 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
Directa de entrada / saída 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
Não formatado entrada / saída 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
Formatado de entrada / saída 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
Arquivo de posicionamento 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
De tratamento de erros 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
Operações em arquivos 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

 

Defined in header <stdio.h>
char *tmpnam( char *filename );

Cria um nome de arquivo único e as armazena em cadeia de caracteres apontada por filename. A função é capaz de gerar até TMP_MAX de nomes de ficheiros originais, mas alguns ou todos eles podem ser utilizados para o sistema de ficheiros e, portanto, não retornam valores adequados.

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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Parâmetros

filename

-

ponteiro para a cadeia de caracteres a ser utilizado como um buffer de resultado. Se NULL é passado, um ponteiro para um buffer interno estático é retornado . 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.

Valor de retorno

filename se filename não era NULL. Caso contrário, um ponteiro para um buffer interno estático é retornado. Se nenhum nome adequado pode ser gerado, NULL é retornado.

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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Exemplo

#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!

Veja também

tmpfile	retorna um ponteiro para um arquivo temporário 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. (função)
C++ documentation for tmpnam