Standard C Libraries
system
Description:
Include:
Prototype:
Execute a command.
<stdlib.h>
int system(const char * s );
Argument:
s
command to be executed
Remarks:
Example:
This function must be customized to be used as described (see
pic30-libs ). By default system will cause a reset if called with
anything other than NULL. system(NULL) will do nothing.
/* This program uses system */
/* to TYPE its source file. */
#include <stdlib.h> /* for system */
int main(void)
{
system("type sampsystem.c");
}
Output:
System(type sampsystem.c) called: Aborting
wctomb
Description:
Include:
Prototype:
Converts a wide character to a multibyte character. (See Remarks.)
<stdlib.h>
int wctomb(char * s , wchar_t wchar );
Arguments:
s
wchar
points to the multibyte character
the wide character to be converted
Return Value:
Remarks:
Returns zero if s points to a null character; otherwise, returns 1.
The resulting multibyte character is stored at s . The 16-bit compiler
does not support multibyte characters with length greater than 1
character.
wcstombs
Description:
Include:
Prototype:
Converts a wide character string to a multibyte string. (See Remarks.)
<stdlib.h>
size_t wcstombs(char * s , const wchar_t * wcs ,
size_t n );
Arguments:
s
wcs
n
points to the multibyte string
points to the wide character string
the number of characters to convert
Return Value:
Remarks:
? 2008 Microchip Technology Inc.
Returns the number of characters stored excluding the null character.
wcstombs converts n number of multibyte characters unless it
encounters a null character first. The 16-bit compiler does not support
multibyte characters with length greater than 1 character.
DS51456E-page 113
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