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hack up something that prints correct decimal places even with the bugs in the compiler

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This commit is contained in:
mrdudz 2022-09-17 18:35:02 +02:00
parent 7693b86d7d
commit 3805c8754a
1 changed files with 41 additions and 3 deletions
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44
test/float/softfloat/ftostr.c
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@ -3,9 +3,47 @@
#include <stdio.h>
char *_ftostr(char *buffer, float f) {
signed long intpart = (signed long)f;
signed long intpart = (signed long)(f);
float fracpart;
fracpart = f - (float)(intpart);
sprintf(buffer, "<0x%08lx:%ld.%ld>", *((unsigned long*)(&f)), intpart, fracpart * 1000);
float f1, f2;
signed long n0;
// printf("f:%f\n",f);
f2 = intpart;
// printf("f2:%f\n",f2);
// printf("f2:%08lx\n",*((unsigned long*)(&f2)));
if (f2 > f) {
if (intpart > 0) {
--intpart;
}
}
f2 = intpart;
fracpart = f - f2;
// printf("fracpart:%f\n",fracpart);
// printf("fracpart:%08lx\n",*((unsigned long*)(&fracpart)));
// f1 = fracpart * 10000.0f;
f1 = 10000.0f;
// printf("fracpart:%08lx\n",*((unsigned long*)(&f1)));
// f1 *= fracpart;
f1 = f1 * fracpart;
// f1 = fracpart;
// f1 = intpart;
// printf("fracpart:%f\n",f1);
// printf("fracpart:%08lx\n",*((unsigned long*)(&f1)));
n0 = (signed long)f1;
if (n0 < 0) {
n0 *= -1;
}
// printf("n0:%ld\n",n0);
if (n0 >= 1000) {
sprintf(buffer, "<0x%08lx:%ld.%ld>", *((unsigned long*)(&f)), intpart, n0);
} else if (n0 >= 100) {
sprintf(buffer, "<0x%08lx:%ld.0%ld>", *((unsigned long*)(&f)), intpart, n0);
} else if (n0 >= 10) {
sprintf(buffer, "<0x%08lx:%ld.00%ld>", *((unsigned long*)(&f)), intpart, n0);
} else if (n0 >= 1) {
sprintf(buffer, "<0x%08lx:%ld.000%ld>", *((unsigned long*)(&f)), intpart, n0);
} else {
sprintf(buffer, "<0x%08lx:%ld.0000%ld>", *((unsigned long*)(&f)), intpart, n0);
}
return &buffer[0];
}