From a64a83210643114b3a892e70ce07ded5bd5de054 Mon Sep 17 00:00:00 2001
From: Joao Eriberto Mota Filho <eriberto@eriberto.pro.br>
Date: Fri, 23 May 2025 11:45:16 -0300
Subject: [PATCH] Fix function definitions to use modern ANSI C prototypes
 (#119)

* Fix function definitions to use modern ANSI C prototypes

This commit solves GCC-15 warnings
"old-style function definition [-Wold-style-definition]"

Closes #115

* Update CHANGES

---------

Co-authored-by: Tobias Oetiker <tobi@oetiker.ch>
--- a/src/rateup.c
+++ b/src/rateup.c
@@ -264,18 +264,11 @@ static double expscale(double y, double maxy)
 }
 
 static void
-image (file, maxvi, maxvo, maxx, maxy, xscale, yscale, growright, step, bits,
-       ytics, yticsf, peak, currdatetimeformat, currdatetimepos)
-     char *file;
-     long long maxvi, maxvo;
-     long maxx;
-     long maxy, growright, step, bits;
-     double xscale, yscale;
-     int ytics;			/* number of tics on the y axis */
-     double yticsf;		/* scale everything on the y axis with this factor */
-     int peak;
-     char *currdatetimeformat;
-     int currdatetimepos;
+image (char *file, long long maxvi, long long maxvo, long maxx, long maxy, double xscale, double yscale,
+       long growright, long step, long bits, int ytics, double yticsf, int peak, char *currdatetimeformat,
+       int currdatetimepos)
+     	/* ytics: number of tics on the y axis */
+     	/* yticsf: scale everything on the y axis with this factor */
 {
   FILE *fo;
   char file_tmp[10240];
@@ -1156,8 +1149,7 @@ image (file, maxvi, maxvo, maxx, maxy, xscale, yscale, growright, step, bits,
 
 
 static double
-diff (a, b)
-     char *a, *b;
+diff (char *a, char *b)
 {
   char res[MAXL], *a1, *b1, *r1;
   int c, x, m;
@@ -1228,8 +1220,7 @@ diff (a, b)
 }
 
 static int
-readhist (file)
-     char *file;
+readhist (char *file)
 {
   FILE *fi;
   int x, retcode = 0;
@@ -1380,10 +1371,7 @@ readfile ()
 }
 
 static void
-update (in, out, abs_max, absupdate)
-     char *in, *out;
-     long long abs_max;
-     int absupdate;
+update (char *in, char *out, long long abs_max, int absupdate)
 {
   FILE *fo;
   char buf[128], buf1[128], buf2[128];
@@ -1824,9 +1812,7 @@ readparam (char const *file)
 }
 
 int
-main (argc, argv)
-     int argc;
-     char **argv;
+main (int argc, char **argv)
 {
   int x, argi, used, initarg;