diff options
Diffstat (limited to 'libf2c/libF77/c_div.c')
| -rw-r--r-- | libf2c/libF77/c_div.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/libf2c/libF77/c_div.c b/libf2c/libF77/c_div.c index ac963079ba2..4d153b4c4af 100644 --- a/libf2c/libF77/c_div.c +++ b/libf2c/libF77/c_div.c @@ -18,8 +18,18 @@ void c_div(complex *c, complex *a, complex *b) abi = - abi; if( abr <= abi ) { - if(abi == 0) + if(abi == 0) { +#ifdef IEEE_COMPLEX_DIVIDE + float af, bf; + af = bf = abr; + if (a->i != 0 || a->r != 0) + af = 1.; + c->i = c->r = af / bf; + return; +#else sig_die("complex division by zero", 1); +#endif + } ratio = (double)b->r / b->i ; den = b->i * (1 + ratio*ratio); cr = (a->r*ratio + a->i) / den; |