From 9db822ad9f2e25d88520e1c61b20052e7dfca6ca Mon Sep 17 00:00:00 2001
From: graehl <graehl@ec762483-ff6d-05da-a07a-a48fb63a330f>
Date: Sat, 7 Aug 2010 00:07:45 +0000
Subject: dynamic fsa ff, factory for fsa and ff shares code, factory moved to
 ff_factory.cc

git-svn-id: https://ws10smt.googlecode.com/svn/trunk@483 ec762483-ff6d-05da-a07a-a48fb63a330f
---
 decoder/static_utoa.h | 56 +++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 54 insertions(+), 2 deletions(-)

(limited to 'decoder/static_utoa.h')

diff --git a/decoder/static_utoa.h b/decoder/static_utoa.h
index 0dbe111f..fe5f6d92 100755
--- a/decoder/static_utoa.h
+++ b/decoder/static_utoa.h
@@ -2,6 +2,9 @@
 #define STATIC_UTOA_H
 
 #include "threadlocal.h"
+
+
+#include <string>
 #include <cstring>
 
 #define DIGIT_LOOKUP_TABLE 0
@@ -24,8 +27,7 @@ inline char digit_to_char(int d) {
 #endif
 }
 
-
-// returns n in string [return,num); *num=0 yourself calling if you want a c_str
+// returns n in string [return,num); *num=0 yourself before calling if you want a c_str
 inline char *utoa(char *num,unsigned n) {
   if ( !n ) {
     *--num='0';
@@ -59,5 +61,55 @@ inline char* append_utoa(char *to,unsigned n) {
   return to+ns;
 }
 
+// so named to avoid gcc segfault when named itoa
+inline char *itoa(char *p,int n) {
+  if (n<0) {
+    p=utoa(p,-n); // TODO: check that (unsigned)(-INT_MIN) == 0x1000000 in 2s complement and not == 0
+    *--p='-';
+    return p;
+  } else
+    return utoa(p,n);
+}
+
+inline char *static_itoa(int n) {
+  return itoa(utoa_buf+utoa_bufsizem1,n);
+}
+
+
+inline std::string utos(unsigned n) {
+  const int bufsz=20;
+  char buf[bufsz];
+  char *end=buf+bufsz;
+  char *p=utoa(end,n);
+  return std::string(p,end);
+}
+
+inline std::string itos(int n) {
+  const int bufsz=20;
+  char buf[bufsz];
+  char *end=buf+bufsz;
+  char *p=itoa(end,n);
+  return std::string(p,end);
+}
+
+#ifdef ITOA_SAMPLE
+# include <cstdio>
+# include <sstream>
+# include <iostream>
+using namespace std;
+
+int main(int argc,char *argv[]) {
+  printf("d U d U d U\n");
+  for (int i=1;i<argc;++i) {
+    int n;
+    unsigned un;
+    sscanf(argv[i],"%d",&n);
+    sscanf(argv[i],"%u",&un);
+    printf("%d %u %s",n,un,static_itoa(n));
+    printf(" %s %s %s\n",static_utoa(un),itos(n).c_str(),utos(un).c_str());
+  }
+  return 0;
+}
+#endif
 
 #endif
-- 
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