From 018c51122e27ba1917201542bc88a8e7b8a03996 Mon Sep 17 00:00:00 2001 From: bothner Date: Tue, 22 May 2001 04:38:37 +0000 Subject: * gcj/javaprims.h (_Jv_FormatInt): New declaration. * java/lang/natString.cc (_JvFormatInt): New primitive, with logic taken from old Integer.toString code. (Integer::valueOf): Use _Jv_FormatInt. * java/lang/Integer.java (toString): Just use call String.valueOf. * java/lang/Long.java (toString): Fix typo in comment. * java/lang/String.java (valueOf(int)): Make native. * java/lang/StringBuffer.java (append(int)): Make native. * java/lang/natStringBuffer.cc: New file, for append(jint). * Makefile.am (ant_source_files): Add java/lang/natStringBuffer.cc. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@42419 138bc75d-0d04-0410-961f-82ee72b054a4 --- libjava/java/lang/natString.cc | 46 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) (limited to 'libjava/java/lang/natString.cc') diff --git a/libjava/java/lang/natString.cc b/libjava/java/lang/natString.cc index be0c91cd334..659810f31e7 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) { -- cgit v1.2.1