Warning: main(/www/www/htdocs/style/globals.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/neutrino/lib_ref/a/atol.html on line 1

Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/globals.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/neutrino/lib_ref/a/atol.html on line 1

Warning: main(/www/www/htdocs/style/header.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/neutrino/lib_ref/a/atol.html on line 8

Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/header.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/neutrino/lib_ref/a/atol.html on line 8

atol(), atoll()

Convert a string into a long integer

Synopsis:

#include <stdlib.h>

long atol( const char* ptr );

long long atoll( const char* ptr );

Arguments:

ptr
A pointer to the string to parse.

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

Description:

The atol() function converts the string pointed to by ptr to a long integer; atoll() converts the string pointed to by nptr to a long long integer.

Returns:

atol()
A long integer.
atoll()
A long long integer.

Examples:

#include <stdlib.h>
#include <stdio.h>

int main( void )
{
    long x;

    x = atol( "-289" );
    printf( "x = %d\n", x );
    return EXIT_SUCCESS;
}

produces the output:

x = -289

Classification:

ANSI, POSIX 1003.1

Safety:
Cancellation point No
Interrupt handler Yes
Signal handler Yes
Thread Yes

See also:

atoi(), itoa(), ltoa(), sscanf(), strtol(), strtoul(), ultoa(), utoa()


Warning: main(/www/www/htdocs/style/footer.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/neutrino/lib_ref/a/atol.html on line 151

Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/footer.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/neutrino/lib_ref/a/atol.html on line 151