add compiler.h to abstract gcc attributes

textcode.h

@@ -12,71 +12,91 @@ extern "C" {
  * dest (if dest != NULL), returning the number of bytes written. */
 
 /* dietlibc defines these in sys/cdefs.h, which is included from stddef.h */
-#ifndef __writememsz__
+#ifndef __readmemsz__
 #define __readmemsz__(a,b)
 #endif
 
+#ifndef __writemem__
+#define __writemem__(a)
+#endif
+
 /* Needs len/3*4 bytes */
-__readmemsz__(2,3)
+__writemem__(1) __readmemsz__(2,3)
 size_t fmt_uuencoded(char* dest,const char* src,size_t len);
+
 /* Needs len/3*4 bytes */
-__readmemsz__(2,3)
+__writemem__(1) __readmemsz__(2,3)
 size_t fmt_base64(char* dest,const char* src,size_t len);
-__readmemsz__(2,3)
+
+__writemem__(1) __readmemsz__(2,3)
 size_t fmt_base64url(char* dest,const char* src,size_t len);
+
 /* Worst case: len*3 */
-__readmemsz__(2,3)
+__writemem__(1) __readmemsz__(2,3)
 size_t fmt_quotedprintable(char* dest,const char* src,size_t len);
+
 /* Worst case: len*3 */
-__readmemsz__(2,3)
+__writemem__(1) __readmemsz__(2,3)
 size_t fmt_quotedprintable2(char* dest,const char* src,size_t len,const char* escapeme);
+
 /* Worst case: len*3 */
-__readmemsz__(2,3)
+__writemem__(1) __readmemsz__(2,3)
 size_t fmt_urlencoded(char* dest,const char* src,size_t len);
+
 /* Worst case: len*3 */
-__readmemsz__(2,3)
+__writemem__(1) __readmemsz__(2,3)
 size_t fmt_urlencoded2(char* dest,const char* src,size_t len,const char* escapeme);
+
 /* Worst case: len*2 */
-__readmemsz__(2,3)
+__writemem__(1) __readmemsz__(2,3)
 size_t fmt_yenc(char* dest,const char* src,size_t len);
+
 /* Needs len*2 bytes */
-__readmemsz__(2,3)
+__writemem__(1) __readmemsz__(2,3)
 size_t fmt_hexdump(char* dest,const char* src,size_t len);
+
 /* Change '<' to '&lt;' and '&' to '&amp;' and '\n' to '<br>'; worst case: len*5 */
 /* This is meant for outputting text that goes between tags */
-__readmemsz__(2,3)
+__writemem__(1) __readmemsz__(2,3)
 size_t fmt_html(char* dest,const char* src,size_t len);
+
 /* Change '<' to '&lt;' and '&' to '&amp;' and '"' to '&quot;'; worst case: len*6 */
 /* This is meant for outputting text that goes in a tag argument between double quotes*/
-__readmemsz__(2,3)
+__writemem__(1) __readmemsz__(2,3)
 size_t fmt_html_tagarg(char* dest,const char* src,size_t len);
+
 /* Change '<' to '&lt;' and '&' to '&amp;'; worst case: len*5 */
-__readmemsz__(2,3)
+__writemem__(1) __readmemsz__(2,3)
 size_t fmt_xml(char* dest,const char* src,size_t len);
 
 /* Change '\' to "\\", '\n' to "\n", ^A to "\x01" etc; worst case: len*4 */
-__readmemsz__(2,3)
+__writemem__(1) __readmemsz__(2,3)
 size_t fmt_cescape(char* dest,const char* src,size_t len);
+
 /* Worst case: len*4 */
-__readmemsz__(2,3)
+__writemem__(1) __readmemsz__(2,3)
 size_t fmt_cescape2(char* dest,const char* src,size_t len,const char* escapeme);
+
 /* Fold whitespace to '_'; this is great for writing fields with
  * white spaces to a log file and still allow awk to do log analysis */
 /* Worst case: same size */
-__readmemsz__(2,3)
+__writemem__(1) __readmemsz__(2,3)
 size_t fmt_foldwhitespace(char* dest,const char* src,size_t len);
+
 /* Worst case: len*3 */
-__readmemsz__(2,3)
+__writemem__(1) __readmemsz__(2,3)
 size_t fmt_ldapescape(char* dest,const char* src,size_t len);
-__readmemsz__(2,3)
+
+__writemem__(1) __readmemsz__(2,3)
 size_t fmt_ldapescape2(char* dest,const char* src,size_t len,const char* escapeme);
+
 /* Encode JSON string from UTF-8; will backslash-escape the bare minimum.
  * Invalid UTF-8 in input will output as valid UTF-8 for each byte
  * Worst case: len*6 */
-__readmemsz__(2,3)
+__writemem__(1) __readmemsz__(2,3)
 size_t fmt_jsonescape(char* dest,const char* src,size_t len);
 
-__readmemsz__(2,3)
+__writemem__(1) __readmemsz__(2,3)
 size_t fmt_base85(char* dest,const char* src,size_t len);
 
 /* These read one line from src, decode it, and write the result to