missing const qualifier on format parameter

[Banzai24-yht]

Hello,

I got too much warnings: passing 'const char *' to parameter of type 'char *' discards qualifiers

when using "tpl_map"

I did this patch, but I'd rather use an official version of Tpl, with no local patch. it was tested: ok.

$ git diff

diff --git a/src/tpl.c b/src/tpl.c
index e4f9665..753bf0a 100644
--- a/src/tpl.c
+++ b/src/tpl.c
@@ -309,7 +309,7 @@ char *calc_field_addr(tpl_node *parent, int type,char *struct_addr, int ordinal)
     return struct_addr + offset;
 }

-TPL_API tpl_node *tpl_map(char *fmt,...) {
+TPL_API tpl_node *tpl_map(const char *fmt,...) {
   va_list ap;
   tpl_node *tn;

@@ -319,10 +319,11 @@ TPL_API tpl_node *tpl_map(char *fmt,...) {
   return tn;
 }

-TPL_API tpl_node *tpl_map_va(char *fmt, va_list ap) {
+TPL_API tpl_node *tpl_map_va(const char *fmt, va_list ap) {
     int lparen_level=0,expect_lparen=0,t=0,in_structure=0,ordinal=0;
     int in_nested_structure=0;
-    char *c, *peek, *struct_addr=NULL, *struct_next;
+    const char *c, *peek;
+    char *struct_addr=NULL, *struct_next;
     tpl_node *root,*parent,*n=NULL,*preceding,*iter_start_node=NULL,
              *struct_widest_node=NULL, *np; tpl_pidx *pidx;
     tpl_pound_data *pd;
diff --git a/src/tpl.h b/src/tpl.h
index 1da93c4..3067c73 100644
--- a/src/tpl.h
+++ b/src/tpl.h
@@ -116,7 +116,7 @@ typedef struct tpl_gather_t {
 typedef int (tpl_gather_cb)(void *img, size_t sz, void *data);

 /* Prototypes */
-TPL_API tpl_node *tpl_map(char *fmt,...);       /* define tpl using format */
+TPL_API tpl_node *tpl_map(const char *fmt,...);       /* define tpl using format */
 TPL_API void tpl_free(tpl_node *r);             /* free a tpl map */
 TPL_API int tpl_pack(tpl_node *r, int i);       /* pack the n'th packable */
 TPL_API int tpl_unpack(tpl_node *r, int i);     /* unpack the n'th packable */
@@ -127,7 +127,7 @@ TPL_API char* tpl_peek(int mode, ...);         /* sneak peek at format string */
 TPL_API int tpl_gather( int mode, ...);        /* non-blocking image gather */
 TPL_API int tpl_jot(int mode, ...);            /* quick write a simple tpl */

-TPL_API tpl_node *tpl_map_va(char *fmt, va_list ap);
+TPL_API tpl_node *tpl_map_va(const char *fmt, va_list ap);

 #if defined __cplusplus
     }

(END)