.TH LIBCONTACTS_SAME_NUMBER 3 LIBCONTACTS .SH NAME libcontacts_same_number \- Save a contact .SH SYNOPSIS .nf #include int libcontacts_same_number(const char *\fIa\fP, const char *\fIa_country\fP, const char *\fIb\fP, const char *\fIb_country\fP); .fi .PP Link with .IR -lcontacts . .SH DESCRIPTION The .BR libcontacts_same_number () function checks whether the telephone numbers specified in the .I a and .I b parameters are the same number. .PP The country calling code for .I a and .I b may be specified in the .I a_country and .I b_country parameters respectively. If the empty string is specified as a country calling code, it is treated as unspecified. .B \(dq00\(dq will be added automatically if it, or its alternative .B \(dq+\(dq is missing. .SH RETURN VALUE The .BR libcontacts_same_number () function returns 1 or 0 upon successful completion; otherwise -1 is returned and .I errno is set appropriately to indicate the error. If the returned value is 1, the numbers match, if the returned value is 0, the numbers do not match. .SH ERRORS The .BR libcontacts_same_number () function will fail if: .TP .B EINVAL The .I a or .I b is .I NULL or the empty string. .PP The .BR libcontacts_same_number () function may fail for any reason specified for the .BR malloc (3) function. .SH FUTURE DIRECTIONS This function may be removed in the future. .SH SEE ALSO .BR libcontacts.h (0), .BR libcontacts (7)