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Diffstat (limited to 'tools/test/testfloat/random.c')
-rw-r--r-- | tools/test/testfloat/random.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/tools/test/testfloat/random.c b/tools/test/testfloat/random.c new file mode 100644 index 0000000..21326c1 --- /dev/null +++ b/tools/test/testfloat/random.c @@ -0,0 +1,63 @@ + +/* +=============================================================================== + +This C source file is part of TestFloat, Release 2a, a package of programs +for testing the correctness of floating-point arithmetic complying to the +IEC/IEEE Standard for Floating-Point. + +Written by John R. Hauser. More information is available through the Web +page `http://HTTP.CS.Berkeley.EDU/~jhauser/arithmetic/TestFloat.html'. + +THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort +has been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT +TIMES RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO +PERSONS AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ANY +AND ALL LOSSES, COSTS, OR OTHER PROBLEMS ARISING FROM ITS USE. + +Derivative works are acceptable, even for commercial purposes, so long as +(1) they include prominent notice that the work is derivative, and (2) they +include prominent notice akin to these four paragraphs for those parts of +this code that are retained. + +=============================================================================== +*/ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <stdlib.h> +#include "milieu.h" +#include "random.h" + +uint8 randomUint8( void ) +{ + + return (bits8) ( random()>>4 ); + +} + +uint16 randomUint16( void ) +{ + + return ( random() & 0x0000ffff ); + +} + +uint32 randomUint32( void ) +{ + + return ( ( (uint32) random()<<16) | ( (uint32) random() & 0x0000ffff) ); +} + +#ifdef BITS64 + +uint64 randomUint64( void ) +{ + + return ( ( (uint64) randomUint32() )<<32 ) | randomUint32(); + +} + +#endif + |