}
+/* HasPrefix returns true if non-NULL s starts with non-NULL prefix. */
+bool HasPrefix(const char *s, const char *prefix)
+{
+ while (*s && *s == *prefix) {
+ s++;
+ prefix++;
+ }
+
+ return *prefix == '\0';
+}
+
+
/* HasSuffixC returns true if non-NULL string s ends with a c before the
* terminating NUL. */
-bool HasSuffixC(char *s, int c)
+bool HasSuffixC(const char *s, int c)
{
return *s && s[strlen(s) - 1] == c;
}