Dai Yokota / TextLCD_ostream

Using std::ostream with TextLCD

Dependencies:   ACM1602NI TextLCD

Dependents:   TextLCD_ostream_sample

This is class library inherited std::ostream for TextLCD
Because a large amount of memory is needed, do not work in low memory MPU

Sample program is here. And notebook page is here (sorry notebook page is only in Japanese)

Files at this revision

API Documentation at this revision

Revision 6:2494d76a38b0, committed 2016-07-30

Comitter:
jk1lot
Date:
Sat Jul 30 06:59:22 2016 +0000
Parent:
5:6c1109b4dfb8
Commit message:
bug fixed

Changed in this revision

Nucleo_streamfix.cpp Show diff for this revision Revisions of this file
TextLCD_ostream.h Show annotated file Show diff for this revision Revisions of this file
microlib_streamfix.cpp Show annotated file Show diff for this revision Revisions of this file 
diff -r 6c1109b4dfb8 -r 2494d76a38b0 Nucleo_streamfix.cpp
--- a/Nucleo_streamfix.cpp	Fri Jul 29 16:13:36 2016 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,27 +0,0 @@
-#include "mbed.h"
-
-#ifdef TARGET_STM
-#ifdef __MICROLIB /*__CC_ARM*/
-/// To suppress MDK-ARM Linker Error: L6218E: Undefined symbol __fread_bytes_avail (referred from ios.o).
-size_t std::__fread_bytes_avail(void * __restrict ptr,
-                    size_t count, FILE * __restrict stream) //__attribute__((__nonnull__(1,3)))
-{
-        return 0;
-}
-
-
-#include <wchar.h>
-/// To suppress MDK-ARM Linker Error: L6218E: Undefined symbol mbsinit (referred from ios.o).
-int std::mbsinit(const mbstate_t * ps)
-{
-        return -1;
-}
-
-/// To suppress MDK-ARM Linker Error: L6218E: Undefined symbol mbsinit (referred from ios.o).
-wchar_t *std::wmemmove(wchar_t * __restrict s1,
-                      const wchar_t * __restrict s2, size_t n) //__attribute__((__nonnull__(1,2)))
-{
-        return NULL;
-}
-#endif /*__MICROLIB*/ /*__CC_ARM*/
-#endif

diff -r 6c1109b4dfb8 -r 2494d76a38b0 TextLCD_ostream.h
--- a/TextLCD_ostream.h	Fri Jul 29 16:13:36 2016 +0000
+++ b/TextLCD_ostream.h	Sat Jul 30 06:59:22 2016 +0000
@@ -4,21 +4,6 @@
 #include <ostream>
 #include <streambuf>
 
-/*
-template <class LCDCLASS>
-class TextLCD_streambuf : public std::streambuf {
-public:
-    TextLCD_streambuf(LCDCLASS *p) : lcdp(p) {}
-    virtual int_type overflow( int_type c = EOF ) {
-        if( c != EOF ) lcdp->putc(c);
-        return c;
-    }
-
-private:
-    LCDCLASS *lcdp;
-};
-*/
-
 /** ostream wrapper for TextLCD.
 LCDCLASS(TextLCD) need to have putc(),locate(),cls() function.
 @code
@@ -70,13 +55,12 @@
     private:
         LCDCLASS *lcdp;
     } lcd_buf;
-//    TextLCD_streambuf<LCDCLASS> lcd_buf;
 };
 
 #ifndef NOTextLCD_h
 //for compatibility to previous version
 #include "TextLCD.h"
-/// specialized version
+// specialized version
 typedef TextLCD_ostream<TextLCD_Base> lcd_ostream;
 #endif
 

diff -r 6c1109b4dfb8 -r 2494d76a38b0 microlib_streamfix.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/microlib_streamfix.cpp	Sat Jul 30 06:59:22 2016 +0000
@@ -0,0 +1,27 @@
+// Dummy functions to avoid compile error.
+// In fact, malfunctions Once these functions are called.
+#include "mbed.h"
+
+#ifdef __MICROLIB /*__CC_ARM*/
+/// To suppress MDK-ARM Linker Error: L6218E: Undefined symbol __fread_bytes_avail (referred from ios.o).
+size_t std::__fread_bytes_avail(void * __restrict ptr,
+                    size_t count, FILE * __restrict stream) //__attribute__((__nonnull__(1,3)))
+{
+        return 1;
+}
+
+
+#include <wchar.h>
+/// To suppress MDK-ARM Linker Error: L6218E: Undefined symbol mbsinit (referred from ios.o).
+int std::mbsinit(const mbstate_t * ps)
+{
+        return -1;
+}
+
+/// To suppress MDK-ARM Linker Error: L6218E: Undefined symbol mbsinit (referred from ios.o).
+wchar_t *std::wmemmove(wchar_t * __restrict s1,
+                      const wchar_t * __restrict s2, size_t n) //__attribute__((__nonnull__(1,2)))
+{
+        return NULL;
+}
+#endif /*__MICROLIB*/ /*__CC_ARM*/