fmtquote: remove reuse of an int variable

Squashes 6 -Wsign-conversion/-Wconversion warnings.

diff --git a/lib/ast/fmtesc.c b/lib/ast/fmtesc.c
index db879f12a95a3c3ab61f61f8539f9066c93b36ef..b4558851127a787e2ff71b97807695d8c7e7c173 100644 (file)
--- a/lib/ast/fmtesc.c
+++ b/lib/ast/fmtesc.c
@@ -35,19 +35,18 @@ char *fmtquote(const char *as, const char *qb, const char *qe, size_t n,
     const unsigned char *s = (const unsigned char *) as;
     const unsigned char *e = s + n;
     char *b;
-    int c;
     int escaped;
     int spaced;
     int shell;
     char *f;
     char *buf;
 
-    c = 4 * (n + 1);
+    size_t len = 4 * (n + 1);
     if (qb)
-       c += strlen(qb);
+       len += strlen(qb);
     if (qe)
-       c += strlen(qe);
-    b = buf = fmtbuf(c);
+       len += strlen(qe);
+    b = buf = fmtbuf(len);
     shell = 0;
     if (qb) {
        if (qb[0] == '$' && qb[1] == '\'' && qb[2] == 0)
@@ -58,7 +57,7 @@ char *fmtquote(const char *as, const char *qb, const char *qe, size_t n,
     f = b;
     escaped = spaced = !!(flags & FMT_ALWAYS);
     while (s < e) {
-           c = *s++;
+           int c = *s++;
            if (!(flags & FMT_ESCAPED)
                && (iscntrl(c) || !isprint(c) || c == '\\')) {
                escaped = 1;