isnumber
#define isnumber(c) __sbistype((c), _CTYPE_D|_CTYPE_N)
#define isnumber(f) ((f)&(FINT|FVINT|FREAL|FVREAL))
isnumber(char *s)
isnumber(char *s)
isnumber(const char *str)
isnumber(const char *s)
isnumber(char *s)
isnumber(char *s)
isnumber (
isnumber(char *s)
isnumber(s)
isnumber(char *str)
#undef isnumber
isnumber(char *s)
isnumber(s)