| /contrib/sdk/sources/newlib/libc/math/feclearexcept.c |
|---|
| 0,0 → 1,15 |
| #include <fenv.h> |
| /* 7.6.2.1 |
| The feclearexcept function clears the supported exceptions |
| represented by its argument. |
| */ |
| int feclearexcept (int excepts) |
| { |
| fenv_t _env; |
| __asm__ volatile ("fnstenv %0;" : "=m" (_env)); /* get the env */ |
| _env.__status_word &= ~(excepts & FE_ALL_EXCEPT); /* clear the except */ |
| __asm__ volatile ("fldenv %0;" :: "m" (_env)); /*set the env */ |
| return 0; |
| } |
| /contrib/sdk/sources/newlib/libc/math/fetestexcept.c |
|---|
| 0,0 → 1,17 |
| #include <fenv.h> |
| /* 7.6.2.5 |
| The fetestexcept function determines which of a specified subset of |
| the exception flags are currently set. The excepts argument |
| specifies the exception flags to be queried. |
| The fetestexcept function returns the value of the bitwise OR of the |
| exception macros corresponding to the currently set exceptions |
| included in excepts. |
| */ |
| int fetestexcept (int excepts) |
| { |
| unsigned short _sw; |
| __asm__ ("fnstsw %%ax" : "=a" (_sw)); |
| return _sw & excepts & FE_ALL_EXCEPT; |
| } |