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Added support for HEX leading zero in print #6750

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Added support for HEX leading zero in print #6750

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21886fb
added variable for args in print and println
Tijgerd Sep 21, 2017
838f790
Added the PRINT_LEADINGZERO functionality
Tijgerd Sep 21, 2017
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52 changes: 27 additions & 25 deletions hardware/arduino/avr/cores/arduino/Print.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -69,41 +69,41 @@ size_t Print::print(char c)
return write(c);
}

size_t Print::print(unsigned char b, int base)
size_t Print::print(unsigned char b, int base, int arg)
{
return print((unsigned long) b, base);
return print((unsigned long) b, base, arg);
}

size_t Print::print(int n, int base)
size_t Print::print(int n, int base, int arg)
{
return print((long) n, base);
return print((long) n, base, arg);
}

size_t Print::print(unsigned int n, int base)
size_t Print::print(unsigned int n, int base, int arg)
{
return print((unsigned long) n, base);
}

size_t Print::print(long n, int base)
size_t Print::print(long n, int base, int arg)
{
if (base == 0) {
return write(n);
} else if (base == 10) {
if (n < 0) {
int t = print('-');
n = -n;
return printNumber(n, 10) + t;
return printNumber(n, 10, arg) + t;
}
return printNumber(n, 10);
return printNumber(n, 10, arg);
} else {
return printNumber(n, base);
return printNumber(n, base, arg);
}
}

size_t Print::print(unsigned long n, int base)
size_t Print::print(unsigned long n, int base, int arg)
{
if (base == 0) return write(n);
else return printNumber(n, base);
else return printNumber(n, base, arg);
}

size_t Print::print(double n, int digits)
Expand Down Expand Up @@ -149,37 +149,37 @@ size_t Print::println(char c)
return n;
}

size_t Print::println(unsigned char b, int base)
size_t Print::println(unsigned char b, int base, int arg)
{
size_t n = print(b, base);
size_t n = print(b, base, arg);
n += println();
return n;
}

size_t Print::println(int num, int base)
size_t Print::println(int num, int base, int arg)
{
size_t n = print(num, base);
size_t n = print(num, base, arg);
n += println();
return n;
}

size_t Print::println(unsigned int num, int base)
size_t Print::println(unsigned int num, int base, int arg)
{
size_t n = print(num, base);
size_t n = print(num, base, arg);
n += println();
return n;
}

size_t Print::println(long num, int base)
size_t Print::println(long num, int base, int arg)
{
size_t n = print(num, base);
size_t n = print(num, base, arg);
n += println();
return n;
}

size_t Print::println(unsigned long num, int base)
size_t Print::println(unsigned long num, int base, int arg)
{
size_t n = print(num, base);
size_t n = print(num, base, arg);
n += println();
return n;
}
Expand All @@ -200,7 +200,7 @@ size_t Print::println(const Printable& x)

// Private Methods /////////////////////////////////////////////////////////////

size_t Print::printNumber(unsigned long n, uint8_t base)
size_t Print::printNumber(unsigned long n, uint8_t base, uint8_t arg)
{
char buf[8 * sizeof(long) + 1]; // Assumes 8-bit chars plus zero byte.
char *str = &buf[sizeof(buf) - 1];
Expand All @@ -209,14 +209,16 @@ size_t Print::printNumber(unsigned long n, uint8_t base)

// prevent crash if called with base == 1
if (base < 2) base = 10;

do {
//the argument is only valid for HEX values smaler than 0x10
if(base != 8 || n>=16) arg = 0;
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if(base != HEX || n>=16) arg = 0;


do {
char c = n % base;
n /= base;

*--str = c < 10 ? c + '0' : c + 'A' - 10;
} while(n);

if(arg == 1)*--str = '0';
return write(str);
}

Expand Down