Move to size_t where practical

include/file.h

@@ -4,7 +4,7 @@
 #define FILE_H
 struct filedata {
   int lc;
-  unsigned len;
+  size_t len;
   char *buf;
 };
 

include/util.h

@@ -1,8 +1,10 @@
 #ifndef LIB_H
 #define LIB_H
+#include <stddef.h>
+
 void die(const char *message);
 
-char *formatBytes(unsigned bytes, float *rounded);
+char *formatBytes(size_t bytes, float *rounded);
 
-int intlen(unsigned i);
+int intlen(size_t i);
 #endif

src/lib/file.c

@@ -10,7 +10,7 @@ struct filedata readfile(FILE *fp) {
   f.lc = 0;
   f.len = 0;
 
-  unsigned bufsize = 4;
+  size_t bufsize = 4;
 
   f.buf = malloc(bufsize);
   if (f.buf == NULL)

src/lib/util.c

@@ -7,12 +7,12 @@ void die(const char *message) {
   exit(1);
 }
 
-char *formatBytes(unsigned bytes, float *rounded) {
+char *formatBytes(size_t bytes, float *rounded) {
   char *SIZES[] = {"bytes", "kB", "MB", "GB"};
 
-  unsigned size = bytes;
-  unsigned div = 0;
-  unsigned rem = 0;
+  size_t size = bytes;
+  size_t div = 0;
+  size_t rem = 0;
 
   while (size >= 1024 && div < (sizeof SIZES / sizeof *SIZES)) {
     rem = (size % 1024);
@@ -25,7 +25,7 @@ char *formatBytes(unsigned bytes, float *rounded) {
   return SIZES[div];
 }
 
-int intlen(unsigned i) {
+int intlen(size_t i) {
   int l = 1;
 
   while (i > 9) {

src/main.c

@@ -26,16 +26,18 @@ void run(FILE *fp, char *filename) {
   f.lc = 0;
   char pc = '\0';
   char c;
-  for (unsigned i = 0; i < f.len; i++) {
+  for (size_t i = 0; i < f.len; i++) {
     c = f.buf[i];
 
     if (tty && (pc == '\n' || i == 0)) {
       f.lc++;
+
       int padlen = lcpad - intlen(f.lc);
       char padding[padlen];
       memset(padding, ' ', padlen);
 
-      fprintf(stderr, "\r%s%s%d:%s ", GREY, padding, f.lc, RESET);
+      fprintf(stderr, "\r%s%s%d:%s ", GREY, padlen > 0 ? padding : "", f.lc,
+              RESET); // padlen  < 1 causes undefined
     }
 
     pc = c;