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// Test the various SINT-TO-FP and UINT-TO-FP conversions.
#include <stdio.h>
int tests[] = {
0x80000000,
-123456792,
-10,
-2,
-1,
0,
1,
2,
10,
123456792,
0x7FFFFF80
};
int main() {
unsigned i;
// byte boundary tests
for (i = 0; i < 64; ++i) {
printf("%d %f, %f, %f, %f\n", i,
(double)(signed char)(i << 2), // i8
(double)(signed short)(i << 10), // i16
(double)(signed int)(i << 26), // i32
(double)(signed long long)((long long)i << 58ULL)); // i64
printf("%d %f, %f, %f, %f\n", i,
(double)(unsigned char)(i << 2), // i8
(double)(unsigned short)(i << 10), // i16
(double)(unsigned int)(i << 26), // i32
(double)(unsigned long long)((unsigned long long)i << 58ULL)); // i64
}
// edge case tests
for (i = 0; i < (sizeof(tests) / sizeof(int)); i++) {
printf("%d %f, %f, %f, %f\n", i,
(double)(unsigned)tests[i],
(double)( signed)tests[i],
(float) tests[i],
(float) ( signed)tests[i]);
}
return 0;
}
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