diff options
-rw-r--r-- | tools/include/nolibc/nolibc.h | 22 | ||||
-rw-r--r-- | tools/include/nolibc/stdlib.h | 32 |
2 files changed, 32 insertions, 22 deletions
diff --git a/tools/include/nolibc/nolibc.h b/tools/include/nolibc/nolibc.h index 23fb81414b1b..a349c88c45ff 100644 --- a/tools/include/nolibc/nolibc.h +++ b/tools/include/nolibc/nolibc.h @@ -94,26 +94,4 @@ /* Used by programs to avoid std includes */ #define NOLIBC -static __attribute__((unused)) -const char *ltoa(long in) -{ - /* large enough for -9223372036854775808 */ - static char buffer[21]; - char *pos = buffer + sizeof(buffer) - 1; - int neg = in < 0; - unsigned long n = neg ? -in : in; - - *pos-- = '\0'; - do { - *pos-- = '0' + n % 10; - n /= 10; - if (pos < buffer) - return pos + 1; - } while (n); - - if (neg) - *pos-- = '-'; - return pos + 1; -} - #endif /* _NOLIBC_H */ diff --git a/tools/include/nolibc/stdlib.h b/tools/include/nolibc/stdlib.h index 09a506aadbbe..84fc4353fb01 100644 --- a/tools/include/nolibc/stdlib.h +++ b/tools/include/nolibc/stdlib.h @@ -45,6 +45,38 @@ int atoi(const char *s) return atol(s); } +/* performs the opposite of atol() using a user-fed buffer. The buffer must be + * at least 21 bytes long (large enough for "-9223372036854775808"). + */ +static __attribute__((unused)) +const char *ltoa_r(long in, char *buffer) +{ + char *pos = buffer + 21 - 1; + int neg = in < 0; + unsigned long n = neg ? -in : in; + + *pos-- = '\0'; + do { + *pos-- = '0' + n % 10; + n /= 10; + if (pos < buffer) + return pos + 1; + } while (n); + + if (neg) + *pos-- = '-'; + return pos + 1; +} + +/* performs the opposite of atol() using a statically allocated buffer */ +static __attribute__((unused)) +const char *ltoa(long in) +{ + /* large enough for -9223372036854775808 */ + static char buffer[21]; + return ltoa_r(in, buffer); +} + static __attribute__((unused)) int msleep(unsigned int msecs) { |