UTF-8 to C/POSIX locale conversion using iconv() fails

Question

I am trying to convert UTF-8 string to C/POSIX locale string
The UTF-8 string is "abc123£" (in bash "abc123\\302\\243"`)

1. iconv_open("", "UTF-8"); // "" means default program locale ie C
2. iconv_open("UCS-2LE", "UTF-8");

iconv() is returning EILSEQ to me in case 1, but success in case 2.

What is the reason for this?
Also, how can I successfully convert any UTF-8 string to 'C' locale string.

Answer 1

因为您的C语言环境使用的字符集（可能是US-ASCII）没有用于£的字符，并且不能无损地转换字符串。