dirty = 0;
src++; /* skip x or X. */
while ((ch = *src++) != '\0' && ISXDIGIT(ch)) {
- if (isupper(ch))
+ if (ISUPPER(ch))
ch = tolower(ch);
n = (int)(strchr(xdigits, ch) - xdigits);
if (dirty == 0)
#define ISGRAPH(x) (isgraph((int) ((unsigned char)x)))
#define ISALPHA(x) (isalpha((int) ((unsigned char)x)))
#define ISPRINT(x) (isprint((int) ((unsigned char)x)))
+#define ISUPPER(x) (isupper((int) ((unsigned char)x)))
+#define ISLOWER(x) (islower((int) ((unsigned char)x)))
/*
int i;
for (i = 0; i < n; i++) {
- int c1 = isupper(a[i]) ? tolower(a[i]) : a[i];
- int c2 = isupper(b[i]) ? tolower(b[i]) : b[i];
+ int c1 = ISUPPER(a[i]) ? tolower(a[i]) : a[i];
+ int c2 = ISUPPER(b[i]) ? tolower(b[i]) : b[i];
if (c1 != c2) return c1-c2;
}
return 0;