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| author | Mattias Andrée <maandree@kth.se> | 2016-03-04 23:50:00 +0100 |
|---|---|---|
| committer | Mattias Andrée <maandree@kth.se> | 2016-03-04 23:50:00 +0100 |
| commit | 76d0af5599554d11f104d582cdac8fbaa8569fcc (patch) | |
| tree | 0ed9889a86d52ebd208382f2fd49dad0570d1f8c /src/zmodpow.c | |
| parent | Clean up, fix a few bugs, and add a test (diff) | |
| download | libzahl-76d0af5599554d11f104d582cdac8fbaa8569fcc.tar.gz libzahl-76d0af5599554d11f104d582cdac8fbaa8569fcc.tar.bz2 libzahl-76d0af5599554d11f104d582cdac8fbaa8569fcc.tar.xz | |
Clean up, add zerror and zperror, fix bugs and add more tests
Signed-off-by: Mattias Andrée <maandree@kth.se>
Diffstat (limited to 'src/zmodpow.c')
| -rw-r--r-- | src/zmodpow.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/src/zmodpow.c b/src/zmodpow.c index 884e9ff..6cb50d2 100644 --- a/src/zmodpow.c +++ b/src/zmodpow.c @@ -14,21 +14,19 @@ zmodpow(z_t a, z_t b, z_t c, z_t d) if (zsignum(c) <= 0) { if (zzero(c)) { - if (zzero(b)) { - errno = EDOM; /* Indeterminate form: 0:th power of 0 */ - FAILURE_JUMP(); - } + if (zzero(b)) + FAILURE(EDOM); /* Indeterminate form: 0:th power of 0 */ + else if (zzero(d)) + FAILURE(EDOM); /* Undefined form: Division by 0 */ zsetu(a, 1); } else if (zzero(b) || zzero(d)) { - errno = EDOM; /* Undefined form: Division by 0 */ - FAILURE_JUMP(); + FAILURE(EDOM); /* Undefined form: Division by 0 */ } else { SET_SIGNUM(a, 0); } return; } else if (zzero(d)) { - errno = EDOM; /* Undefined form: Division by 0 */ - FAILURE_JUMP(); + FAILURE(EDOM); /* Undefined form: Division by 0 */ } else if (zzero(b)) { SET_SIGNUM(a, 0); return; |