iconv_open iconv.h iconv_open - codeset conversion allocation function iconv_t iconv_open(const char *tocode, const char *fromcode);
if_freenameindex net_if.h if_freenameindex - free memory allocated by if_nameindex void if_freenameindex(struct if_nameindex *ptr);
if_indextoname net_if.h if_indextoname - map a network interface index to its corresponding name char *if_indextoname(unsigned ifindex, char *ifname);
-if_nameindex net_if.h if_nameindex - return all network interface names and indexes
+if_nameindex net_if.h if_nameindex - return all network interface names and indexes struct if_nameindex *if_nameindex(void);
if_nametoindex net_if.h if_nametoindex - map a network interface name to its corresponding index unsigned if_nametoindex(const char *ifname);
ilogb math.h ilogb, ilogbf, ilogbl - return an unbiased exponent int ilogb(double x);
ilogbf math.h ilogb, ilogbf, ilogbl - return an unbiased exponent int ilogbf(float x);