wcstoumax

wcstoumax

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Converts a wide string into an integer value with type uintmax_t

 #include <stddef.h> #include <inttypes.h> uintmax_t wcstoumax ( const wchar_t * restrict wcs ,                      wchar_t ** restrict endptr , int base  ); 

The wcstoumax( ) function is similar to wcstoul( ), except that it converts a wide string to an integer value of type uintmax_t. If the conversion fails, wcstoumax( ) returns 0. If the result of the conversion exceeds the range of the type uintmax_t, then the wcstoumax( ) returns UINTMAX_MAX and sets the errno variable to the value of ERANGE ("range error").

Example

 typedef struct {   uintmax_t packets, bytes;   wchar_t   policy[16];   wchar_t   protocol[6];   /* ... */ } stats_t ; stats_t iface_in; wchar_t wcsstat[ ] =                 L"25183 1633438 ACCEPT tcp -- eth2 * 0.0.0.0/0 tcp dpts:80"; wchar_t *wcsptr = wcsstat; iface_in.packets = wcstoumax( wcsptr, &wcsptr, 10 ); iface_in.bytes = wcstoumax( ++wcsptr, &wcsptr, 10 ); /* ... */ wprintf( L"Packets: %" PRIuMAX "; bytes: %" PRIuMAX "; policy: ...\n",          iface_in.packets, iface_in.bytes ); 

This code produces the following output:

 Packets: 25183; bytes: 1633438; policy: ... 

See Also

wcstoimax( ), wcstol( ), and wcstoul( ); wcstod( ), wcstof( ), and wcstold( ); strtoimax( ) and strtoumax( )