from_string
  
  Description:
  [ 
CCode ( cname = 
"g_ascii_string_to_signed" ) ]
[ 
Version ( since = 
"2.54" ) ]
public static bool from_string (
string str, 
out int64 out_num = 
null, 
uint @base = 
10, 
int64 min = 
MIN, 
int64 max = 
MAX) 
throws NumberParserError