String((unsigned int)1) crashes with pc/1.0.2

[jml3on]

Using the following code under a blink project in local debug mode.

void setup() {}

void loop() {
  String t((unsigned int)1);
}

That program crashes when run in local mode.
It works fine when removing the unsigned qualifier.

Under debugger, it appears that calling from String(unsigned int)

char *utoa (unsigned char __val, char *__s, unsigned char __radix)
{
	return utoa ((unsigned int) __val, __s, (int) __radix);
}

loops for ever.

This is because utoa is not defined in stdlib.h, like itoa` is:

_CRTIMP __cdecl __MINGW_NOTHROW  char* itoa (int, char*, int);

not sure what a proper fix is, as I'm not sure if this is a mingw or jantje issue.

[jantje]

not sure what a proper fix is, as I'm not sure if this is a mingw or jantje issue.

I don't know and I wont have time to look at it before half september.

[jml3on]

this older issue seems relevant: esp8266/Arduino#110

It is indeed the case that ArduinoIDE has a modified stdlib under C:\Program Files (x86)\Arduino\hardware\tools\avr\avr\include that contains utoa.

So it's not a mingw issue, it should either be fixed in jantje or sloeber.