code cleanup: move is_str_totally_null()

src/libespeak-ng/common.c

 	return n_bytes+1;
 }
 
+
+int is_str_totally_null(const char* str, int size) {
+	// Tests if all bytes of str are null up to size
+	// This should never be reimplemented with integers, because
+	// this function has to work with unaligned char*
+	// (casting to int when unaligned may result in ungaranteed behaviors)
+	return (*str == 0 && memcmp(str, str+1, size-1) == 0);
+}
+
 int towlower2(unsigned int c, Translator *translator)
 {
 	// check for non-standard upper to lower case conversions
 
 	return ucd_tolower(c);
 }
+
+

src/libespeak-ng/common.h

 extern ESPEAK_NG_API int GetFileLength(const char *filename);
 extern ESPEAK_NG_API void strncpy0(char *to, const char *from, int size);
 
+int is_str_totally_null(const char* str, int size); // Tests if all bytes of str up to size are null
 int towlower2(unsigned int c, Translator *translator); // Supports Turkish I
 
 ESPEAK_NG_API int utf8_in(int *c, const char *buf);

src/libespeak-ng/dictionary.c

 #include "dictionary.h"
 #include "numbers.h"                       // for LookupAccentedLetter, Look...
 #include "phoneme.h"                       // for PHONEME_TAB, phVOWEL, phon...
-#include "readclause.h"                    // for WordToString2, is_str_tota...
+#include "readclause.h"                    // for WordToString2
 #include "speech.h"                        // for path_home
 #include "compiledict.h"                   // for DecodeRule
 #include "synthdata.h"                     // for PhonemeCode, InterpretPhoneme

src/libespeak-ng/readclause.c

 	return CLAUSE_NONE;
 }
 
-int is_str_totally_null(const char* str, int size) {
-	// Tests if all bytes of str are null up to size
-	// This should never be reimplemented with integers, because
-	// this function has to work with unaligned char*
-	// (casting to int when unaligned may result in ungaranteed behaviors)
-	return (*str == 0 && memcmp(str, str+1, size-1) == 0);
-}
-
 static int IsRomanU(unsigned int c)
 {
 	if ((c == 'I') || (c == 'V') || (c == 'X') || (c == 'L'))

src/libespeak-ng/readclause.h

 
 extern PARAM_STACK param_stack[];
 
-// Tests if all bytes of str up to size are null
-int is_str_totally_null(const char* str, int size);
-
 int clause_type_from_codepoint(uint32_t c);
 int Eof(void);
 const char *WordToString2(unsigned int word);