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sys/fmt: Small optimizations

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This commit is contained in:
Joakim Nohlgård 2017-06-21 18:22:11 +02:00
parent 96822ffe3d
commit 1e43bd4211
1 changed files with 7 additions and 7 deletions
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14
sys/fmt/fmt.c
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@ -173,8 +173,8 @@ size_t fmt_u32_dec(char *out, uint32_t val)
size_t len = 1;
/* count needed characters */
for (uint32_t tmp = val; (tmp > 9); len++) {
tmp /= 10;
for (uint32_t tmp = 10; tmp <= val; len++) {
tmp *= 10;
}
if (out) {
@ -194,12 +194,12 @@ size_t fmt_u16_dec(char *out, uint16_t val)
size_t fmt_s32_dec(char *out, int32_t val)
{
int negative = (val < 0);
unsigned negative = (val < 0);
if (negative) {
if (out) {
*out++ = '-';
}
val *= -1;
val = -val;
}
return fmt_u32_dec(out, val) + negative;
}
@ -227,10 +227,10 @@ size_t fmt_s16_dfp(char *out, int16_t val, unsigned fp_digits)
if (out) {
out[pos++] = '-';
}
val *= -1;
val = -val;
}
e = pwr(10, fp_digits);
e = _tenmap[fp_digits];
absolute = (val / (int)e);
divider = val - (absolute * e);
@ -309,7 +309,7 @@ size_t fmt_float(char *out, float f, unsigned precision)
uint32_t integer;
if (negative) {
f *= -1;
f = -f;
}
integer = (uint32_t) f;