Zilog Z8F0130 - Manual (Page 485)

UM013037-1212 setjmp
Zilog Developer Studio II – Z8 Encore!
User Manual
461
If a conversion specification is invalid, the behavior is undefined.
The conversion characters e , g , and x can be capitalized. However, the use of upper case is
ignored.
If end-of-file is encountered during input, conversion is terminated. If end-of-file occurs
before any characters matching the current directive have been read (other than leading
white space, where permitted), execution of the current directive terminates with an input
failure; otherwise, unless execution of the current directive is terminated with a matching
failure, execution of the following directive (if any) is terminated with an input failure.
If conversion terminates on a conflicting input character, the offending input character is
left unread in the input stream. Trailing white space (including new-line characters) is left
unread unless matched by a directive. The success of literal matches and suppressed
assignments is not directly determinable other than using the
%n directive.
setjmp
Saves its calling environment in its jmp_buf argument, for later use by the longjmp func-
tion.
Synopsis
#include

int setjmp(jmp_buf env);
Returns
If the return is from a direct invocation, the setjmp function returns the value zero. If the
return is from a call to the longjmp function, the setjmp function returns a nonzero
value.
Example
int i;

jmp_buf(env);

i=setjmp(env);

longjmp(env, i);
n No input is consumed. The corresponding argument is a pointer to integer into
which is to be written the number of characters read from the input stream so far
by this call to the scanf function. Execution of a %n directive does not increment
the assignment count returned at the completion of execution of the scanf
function.
% Matches a single %; no conversion or assignment occurs.