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.TH ZSETS 3 libzahl
.SH NAME
zsets - Parses a string to a big integer
.SH SYNOPSIS
.nf
#include <zahl.h>
int zsets(z_t \fIa\fP, const char *\fIstr\fP);
.fi
.SH DESCRIPTION
.B zsets
parses the string
.I str
and stores the value in
.IR a .
.I a
must already be initialized with
.BR zinit (3).
.I b
must be a decimal integer. It may be
prefixed with at most one ASCII minus
sign or plus sign.
.SH RETURN VALUE
Upon successful completion, 0 is returned.
On error -1 is returned an errno is appropriately.
.SH ERRORS
This function fails if:
.TP
.B EINVAL
.B str
is not a valid decimal ASCII integer.
.P
On other errors, the function performs a long jump
using the jump buffer provided via
.BR zsetup (3).
.SH SEE ALSO
.BR zset (3),
.BR zsetu (3),
.BR zseti (3),
.BR zsave (3),
.BR zstr (3)
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