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git-svn-id: https://svn.eduke32.com/eduke32@7598 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
terminx 2019-04-18 17:24:59 +00:00 committed by Christoph Oelckers
parent 5052addc67
commit 879cb550a6
1 changed files with 16 additions and 16 deletions
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32
source/build/src/fix16_str.cpp
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@ -12,14 +12,14 @@ static char *itoa_loop(char *buf, uint32_t scale, uint32_t value, bool skip)
while (scale)
{
unsigned digit = (value / scale);
if (!skip || digit || scale == 1)
{
skip = false;
*buf++ = '0' + digit;
value %= scale;
}
scale /= 10;
}
return buf;
@ -36,24 +36,24 @@ void fix16_to_str(fix16_t value, char *buf, int decimals)
uint32_t fracpart = uvalue & 0xFFFF;
uint32_t scale = scales[decimals & 7];
fracpart = fix16_mul(fracpart, scale);
if (fracpart >= scale)
{
/* Handle carry from decimal part */
intpart++;
fracpart -= scale;
fracpart -= scale;
}
/* Format integer part */
buf = itoa_loop(buf, 10000, intpart, true);
/* Format decimal part (if any) */
if (scale != 1)
{
*buf++ = '.';
buf = itoa_loop(buf, scale / 10, fracpart, false);
}
*buf = '\0';
}
@ -61,7 +61,7 @@ fix16_t fix16_from_str(const char *buf)
{
while (isspace(*buf))
buf++;
/* Decode the sign */
bool negative = (*buf == '-');
if (*buf == '+' || *buf == '-')
@ -76,18 +76,18 @@ fix16_t fix16_from_str(const char *buf)
intpart += *buf++ - '0';
count++;
}
if (count == 0 || count > 5
|| intpart > 32768 || (!negative && intpart > 32767))
return FIX16_OVERFLOW;
fix16_t value = intpart << 16;
/* Decode the decimal part */
if (*buf == '.' || *buf == ',')
{
buf++;
uint32_t fracpart = 0;
uint32_t scale = 1;
while (isdigit(*buf) && scale < 100000)
@ -96,19 +96,19 @@ fix16_t fix16_from_str(const char *buf)
fracpart *= 10;
fracpart += *buf++ - '0';
}
value += fix16_div(fracpart, scale);
}
/* Verify that there is no garbage left over */
while (*buf != '\0')
{
if (!isdigit(*buf) && !isspace(*buf))
return FIX16_OVERFLOW;
buf++;
}
return negative ? -value : value;
}