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| author | Joseph Hunkeler <jhunkeler@gmail.com> | 2015-07-08 20:46:52 -0400 |
|---|---|---|
| committer | Joseph Hunkeler <jhunkeler@gmail.com> | 2015-07-08 20:46:52 -0400 |
| commit | fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 (patch) | |
| tree | bdda434976bc09c864f2e4fa6f16ba1952b1e555 /unix/f2c/libf2c/signbit.c | |
| download | iraf-linux-fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4.tar.gz | |
Initial commit
Diffstat (limited to 'unix/f2c/libf2c/signbit.c')
| -rw-r--r-- | unix/f2c/libf2c/signbit.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/unix/f2c/libf2c/signbit.c b/unix/f2c/libf2c/signbit.c new file mode 100644 index 00000000..de95a3b7 --- /dev/null +++ b/unix/f2c/libf2c/signbit.c @@ -0,0 +1,24 @@ +#include "arith.h" + +#ifndef Long +#define Long long +#endif + + int +#ifdef KR_headers +signbit_f2c(x) double *x; +#else +signbit_f2c(double *x) +#endif +{ +#ifdef IEEE_MC68k + if (*(Long*)x & 0x80000000) + return 1; +#else +#ifdef IEEE_8087 + if (((Long*)x)[1] & 0x80000000) + return 1; +#endif /*IEEE_8087*/ +#endif /*IEEE_MC68k*/ + return 0; + } |