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lxdream 0.9.1
released Jun 29
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filename test/testmath.c
changeset 192:580d6c4d7802
prev185:6755a04c447f
author nkeynes
date Sat Aug 05 00:18:21 2006 +0000 (16 years ago)
permissions -rw-r--r--
last change Add error lines to tests with incomplete polys
Split clip tests to separate data file
Add tests for cmd bit 23 ("use list size field")
file annotate diff log raw
1.1 --- a/test/testmath.c Tue Jul 11 01:35:27 2006 +0000
1.2 +++ b/test/testmath.c Sat Aug 05 00:18:21 2006 +0000
1.3 @@ -17,16 +17,40 @@
1.4
1.5 #define MAX_FLOAT_DIFF 0.00001
1.6
1.7 +static inline float inttof( unsigned int i )
1.8 +{
1.9 + return *((float *)&i);
1.10 +}
1.11 +
1.12 +static inline double longtod( unsigned long long l )
1.13 +{
1.14 + return *((double *)&l);
1.15 +}
1.16 +
1.17 +static inline unsigned int ftoint( float f )
1.18 +{
1.19 + return *((unsigned int *)&f);
1.20 +}
1.21 +
1.22 +static inline unsigned long long dtolong( double d )
1.23 +{
1.24 + return *((unsigned long long *)&d);
1.25 +}
1.26 +
1.27 +#define QNANF inttof(0x7FBFFFFF)
1.28 +#define QNAND longtod(0x7FF7FFFFFFFFFFFFLL)
1.29
1.30 int compare_float( float a, float b )
1.31 {
1.32 - if( a == b )
1.33 + if( ftoint(a) == ftoint(b) ) /* Exact bit-pattern match */
1.34 return 1;
1.35 float diff = (a>b?(a-b):(b-a));
1.36 return diff < MAX_FLOAT_DIFF;
1.37 }
1.38
1.39 -#define TEST_FEQUALS( a, b ) if( !compare_float(a,b) ) { printf( "Assertion failed at %s.%d: expected %.8f but was %.8f\n", __FILE__, __LINE__, a, b ); return 1; }
1.40 +#define FTOINT(a) (*((unsigned int *)&a))
1.41 +
1.42 +#define TEST_FEQUALS( a, b ) if( !compare_float(a,b) ) { printf( "Assertion failed at %s.%d: expected %.8f (%08X) but was %.8f (%08X)\n", __FILE__, __LINE__, a, FTOINT(a), b, FTOINT(b) ); return 1; }
1.43
1.44 int test_fsca( int angle, float expect_a, float expect_b )
1.45 {
1.46 @@ -138,22 +162,23 @@
1.47
1.48 int main()
1.49 {
1.50 - write_int( get_fpscr() );
1.51 - write_string( "\n" );
1.52 - test_fsca( 0x00000000, 0, 1 );
1.53 - test_fsca( 0x00011234, 0.43205646, 0.90184659 );
1.54 - test_fsca( 0xFEDCBA98, -0.99121743, -0.13224234 );
1.55 - test_fsrra( 25.0, 0.2 );
1.56 - test_fsrra( 0.05, 4.4721361 );
1.57 - test_fsrra( -12.345, nanf() );
1.58 - test_coercion( -3.1415926 );
1.59 - test_coercion( 123456789012346567.890 );
1.60 - test_coercion( -2147483648.0 );
1.61 - test_coercion( 5234.1234 );
1.62 - test_doublearr( 5 );
1.63 - test_floatarr( 5 );
1.64 - test_fipr();
1.65 - test_ftrv();
1.66 - return 1;
1.67 + fprintf( stderr, "LL: %d\n", sizeof(unsigned long long) );
1.68 + write_int( get_fpscr() );
1.69 + write_string( "\n" );
1.70 + test_fsca( 0x00000000, 0, 1 );
1.71 + test_fsca( 0x00011234, 0.43205646, 0.90184659 );
1.72 + test_fsca( 0xFEDCBA98, -0.99121743, -0.13224234 );
1.73 + test_fsrra( 25.0, 0.2 );
1.74 + test_fsrra( 0.05, 4.4721361 );
1.75 + test_fsrra( -12.345, QNANF );
1.76 + test_coercion( -3.1415926 );
1.77 + test_coercion( 123456789012346567.890 );
1.78 + test_coercion( -2147483648.0 );
1.79 + test_coercion( 5234.1234 );
1.80 + test_doublearr( 5 );
1.81 + test_floatarr( 5 );
1.82 + test_fipr();
1.83 + test_ftrv();
1.84 + return 1;
1.85 }
1.86 -
1.87 +
.