Why ascii_isspace() instead of ::isspace()?

[marcbf]

I've noticed that calls to ::isspace() have been replaced by calls to ascii_isspace() as defined in qlocale_p.h.

Can someone tell me the reasoning behind that? Both implementations seem to do the same thing. I've been googling but all I've found is this.

[Christian Ehrlicher]

The commit message says it all 'to replace the locale-dependent isspace(3)' - isspace() is locale dependent but a non-locale dependent function was needed.

[marcbf]

Doesn't that depend on the version of isspace() used?

As far as I know ::isspace(), the one defined in <cctype>, isn't locale-dependent, or am I missing something?

By the way, I'm only asking out of curiosity, so thanks for indulging me. :-)

[Christian Ehrlicher]

@marcbf said in Why ascii_isspace() instead of ::isspace()?:

isn't locale-dependent, or am I missing something?

http://www.cplusplus.com/reference/cctype/isspace/ says it's locale dependent

[marcbf]

I see. I must have missed that. I've always worked under the assumption that the regular isspace() only checks in the default C locale and that you should use the version which takes the locale as a parameter to have locale support.