itos.h File Reference

#include <stdio.h>

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Data Structures
struct	itos_
	return type of itos_ More...

Macros
#define	ITOS(i)   (itos_(i).str)

Functions
static struct itos_	itos_ (long long i)

Macro Definition Documentation

ITOS

#define ITOS

(

i

)

(itos_(i).str)

convert a signed number to a string

The string returned by this macro has a lifetime that (under ≥C11 semantics) only lasts until the end of the containing full expression. Thus intended usage is something like:

void foo(char *); foo(ITOS(42));

In particular, it is incorrect to store the result of this macro anywhere:

char *p = ITOS(42); // ← WRONG // p is now a dangling pointer, pointing to deallocated stack memory

You can think of ITOS as a C equivalent of the C++ std::to_string(i).c_str().

Parameters

i	Number to convert

Returns

Stringized conversion of the number

Definition at line 43 of file itos.h.

Function Documentation

itos_()

static struct itos_ itos_ ( long long  i )

inlinestatic

convert a signed number to a string

This is not expected to be used directly. Callers are expected to use the ITOS macro instead.

Parameters

i	Number to convert

Returns

Stringized conversion of the number

Definition at line 18 of file itos.h.