From 616ec97dec2f057a1072c29ea78df08f66fbbdd4 Mon Sep 17 00:00:00 2001
From: Mike Buland <eichlan@xagasoft.com>
Date: Thu, 10 Mar 2011 17:53:20 +0000
Subject: Removed the float test, it was silly to have it in libbu++.
---
src/tools/float.cpp | 130 ----------------------------------------------------
1 file changed, 130 deletions(-)
delete mode 100644 src/tools/float.cpp
(limited to 'src')
diff --git a/src/tools/float.cpp b/src/tools/float.cpp
deleted file mode 100644
index 2c241f3..0000000
--- a/src/tools/float.cpp
+++ /dev/null
@@ -1,130 +0,0 @@
-#include <bu/sio.h>
-#include <bu/string.h>
-#include <stdlib.h>
-#include <math.h>
-
-using namespace Bu;
-
-Bu::String ftos( double dNum )
-{
- if( dNum == 1.0 )
- return "0x1p+0";
- if( dNum == 0.0 )
- return signbit(dNum)?"-0x0p+0":"0x0p+0";
- if( dNum == -1.0 )
- return "-0x1p+0";
- Bu::String s("0x1.");
- if( signbit(dNum) )
- {
- s.prepend("-");
- dNum = -dNum;
- }
-/*
- for( int j = 0; j < 150 && dNum; j++ )
- {
- dNum = dNum*2;
- sio << dNum << " -- " << (int)dNum << sio.nl;
- if( (int)dNum == 0 )
- s += '0';
- else
- {
- s += '1';
- dNum -= 1.0;
- }
- }
- return s;
- */
- int iPower = 0;
- if( dNum < 1.0 )
- {
- while( dNum < 1.0 )
- {
- dNum *= 2.0;
- iPower--;
- }
- }
- else if( dNum >= 2.0 )
- {
- while( dNum >= 2.0 )
- {
- dNum *= 0.5;
- iPower++;
- }
- }
- dNum -= (int)dNum;
- for( int j = 0; j < 150 && dNum; j++ )
- {
- dNum = dNum*16.0;
- s += "0123456789abcdef"[(int)dNum];
- dNum -= (int)dNum;
- }
- s.formatAppend("p%+d", iPower );
- return s;
-}
-
-double stof( const Bu::String &s )
-{
- if( s == "0x1p+0" )
- return 1.0;
- if( s == "-0x1p+0" )
- return -1.0;
- if( s == "0x0p+0" )
- return 0.0;
- if( s == "-0x0p+0" )
- return 0.0;
- double dNum = 0.0;
- int iPPos = s.getSize()-1;
- for(; s[iPPos] != 'p'; iPPos--) { }
- for( int i = iPPos-1; s[i] != '.'; i-- )
- {
- if( s[i]>='0' && s[i]<='9' )
- {
- dNum += s[i]-'0';
- }
- else if( s[i]>='a' && s[i]<='f' )
- {
- dNum += s[i]-'a'+10.0;
- }
- dNum *= 0.0625;
- }
-
- dNum += 1.0;
-
- int iTop = strtol( s.getStr()+iPPos+1, NULL, 10 );
- if( iTop < 0 )
- {
- for( int j = 0; j > iTop; j-- )
- {
- dNum *= 0.5;
- }
- }
- else
- {
- for( int j = 0; j < iTop; j++ )
- {
- dNum *= 2.0;
- }
- }
-
- if( s[0] == '-' )
- return -dNum;
- return dNum;
-}
-
-int main( int argc, char *argv[] )
-{
- for( int j = 1; j < argc; j++ )
- {
- double dNum = strtod( argv[j], NULL );
-
- String s = ftos( dNum );
- sio << "in: " << dNum << sio.nl;
- sio << "mine: " << s << sio.nl;
- printf("printf: %a\n", dNum );
- sio << "out: " << stof( s ) << sio.nl;
- sio << "match: " << (stof( s ) == dNum) << sio.nl << sio.nl;
- }
-
- return 0;
-}
-
--
cgit v1.2.3