ARM VERSION 1.2 Datový list stáhnout pdf (Strana 174)

The C and C++ Libraries

4.10.11 _sys_tmpnam()

This function converts the file number

fileno

for a temporary file to a unique filename,

for example

tmp0001

Syntax

void _sys_tmpnam(char *name, int fileno, unsigned maxlength)

Implementation

The function must be defined if

tmpnam()

tmpfile()

isused.

Returns

Returns the filename in

name

4.10.12 _sys_command_string()

This function retrieves the command line used to invoke the current application from

the environment that called the application.

Syntax

char *_sys_command_string(char *cmd, int len)

where:

cmd

Is a pointer to a buffer that can be used to storethe command line. It is not

required that the command line is stored in

cmd

len

Is the length of the buffer.

Implementation

This function is called by the library startup code to set up

argv

and

argc

to pass to

main()

Returns

The function must return either:

• A pointer to the command line, if successful. This can be either a pointer to the

cmd

buffer if it is used, or a pointer to wherever else the command line is stored.

•

NULL

, if not successful.

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