//------------------------------------------------------------------------------
void ostream::putDouble(double n) {
uint8_t nd = precision();
double round = 0.5;
char sign;
char buf[13]; // room for sign, 10 digits, '.', and zero byte
char *end = buf + sizeof(buf) - 1;
char *str = end;
// terminate string
*end = '\0';
// get sign and make nonnegative
if (n < 0.0) {
sign = '-';
n = -n;
} else {
sign = flags() & showpos ? '+' : '\0';
}
// check for larger than uint32_t
if (n > 4.0E9) {
pgm err(PSTR("BIG FLT"));
putPgm(err);
return;
}
// round up and separate in and fraction parts
for (uint8_t i = 0; i < nd; ++i) round *= 0.1;
n += round;
uint32_t intPart = n;
double fractionPart = n - intPart;
// format intPart and decimal point
if (nd || (flags() & showpoint)) *--str = '.';
str = fmtNum(intPart, str, 10);
// calculate length for fill
uint8_t len = sign ? 1 : 0;
len += nd + end - str;
// extract adjust field
fmtflags adj = flags() & adjustfield;
if (adj == internal) {
if (sign) putch(sign);
do_fill(len);
} else {
// do fill for internal or right
fill_not_left(len);
if (sign) *--str = sign;
}
putstr(str);
// output fraction
while (nd-- > 0) {
fractionPart *= 10.0;
int digit = static_cast<int>(fractionPart);
putch(digit + '0');
fractionPart -= digit;
}
// do fill if not done above
do_fill(len);
}
//------------------------------------------------------------------------------
void ostream::putPgm(const pgm &arg) {
char *str = arg.ptr;
int n = strlen_P(str);
fill_not_left(n);
for (uint8_t c; (c = pgm_read_byte(str)); str++) {
putch(c);
}
do_fill(n);
}
//------------------------------------------------------------------------------
void ostream::putPgm(const char* str) {
int n;
for (n = 0; pgm_read_byte(&str[n]); n++) {}
fill_not_left(n);
for (uint8_t c; (c = pgm_read_byte(str)); str++) {
putch(c);
}
do_fill(n);
}
//------------------------------------------------------------------------------
void ostream::putChar(char c) {
fill_not_left(1);
putch(c);
do_fill(1);
}
//------------------------------------------------------------------------------
void ostream::putStr(const char *str) {
unsigned n = strlen(str);
fill_not_left(n);
putstr(str);
do_fill(n);
}
