diff options
Diffstat (limited to 'libjava/java/lang/natString.cc')
-rw-r--r-- | libjava/java/lang/natString.cc | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/libjava/java/lang/natString.cc b/libjava/java/lang/natString.cc index be0c91c..659810f 100644 --- a/libjava/java/lang/natString.cc +++ b/libjava/java/lang/natString.cc @@ -341,6 +341,52 @@ _Jv_GetStringUTFRegion (jstring str, jsize start, jsize len, char *buf) return dptr - buf; } +/* Put printed (decimal) representation of NUM in a buffer. + BUFEND marks the end of the buffer, which must be at least 11 jchars long. + Returns the COUNT of jchars written. The result is in + (BUFEND - COUNT) (inclusive) upto (BUFEND) (exclusive). */ + +jint +_Jv_FormatInt (jchar* bufend, jint num) +{ + register jchar* ptr = bufend; + jboolean isNeg; + if (num < 0) + { + isNeg = true; + num = -(num); + if (num < 0) + { + // Must be MIN_VALUE, so handle this special case. + // FIXME use 'unsigned jint' for num. + *--ptr = '8'; + num = 214748364; + } + } + else + isNeg = false; + + do + { + *--ptr = (jchar) ((int) '0' + (num % 10)); + num /= 10; + } + while (num > 0); + + if (isNeg) + *--ptr = '-'; + return bufend - ptr; +} + +jstring +java::lang::String::valueOf (jint num) +{ + // Use an array large enough for "-2147483648"; i.e. 11 chars. + jchar buffer[11]; + int i = _Jv_FormatInt (buffer+11, num); + return _Jv_NewString (buffer+11-i, i); +} + jstring _Jv_AllocString(jsize len) { |