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Bug 23247 – Deprecation: argument 0.0L for format specification "%La" must be double, not real

Status
RESOLVED
Resolution
FIXED
Severity
regression
Priority
P1
Component
dmd
Product
D
Version
D2
Platform
All
OS
All
Creation time
2022-07-14T09:17:16Z
Last change time
2022-07-14T16:07:11Z
Keywords
pull
Assigned to
No Owner
Creator
Iain Buclaw

Comments

Comment #0 by ibuclaw — 2022-07-14T09:17:16Z
This deprecation message is obviously wrong.
Comment #1 by ibuclaw — 2022-07-14T10:23:43Z
Actually, the `%a` format flag as a "GNU extension" is just broken in general as far as I can tell. It's treated as a conversion, rather than a flag. However... the default in C programs is to use the ISO C99 printf/scanf family of functions - I don't see why we are still using the C98 versions in druntime bindings.
Comment #2 by ibuclaw — 2022-07-14T10:36:25Z
As an aside, also broken is the message for "%a[flag]" Deprecation: argument `& variable` for format specification `"%a"` must be `char*`, not `char**` Deprecation: argument `& value` for format specification `"%a"` must be `char*`, not `char**` Wrong, a `char**` is correct.
Comment #3 by ibuclaw — 2022-07-14T10:47:02Z
This is infact a regression. https://github.com/dlang/dmd/pull/12094
Comment #4 by dlang-bot — 2022-07-14T11:13:27Z
@ibuclaw created dlang/dmd pull request #14302 "fix Issue 23247 - Deprecation: argument 0.0L for format specification "%La" must be double, not real" fixing this issue: - fix Issue 23247 - Deprecation: argument 0.0L for format specification "%La" must be double, not real As we are no longer using the GNU/C89 extensions of scanf(), remove all GNU_a handling, this fixes the regression in parsing "%La". https://github.com/dlang/dmd/pull/14302
Comment #5 by dlang-bot — 2022-07-14T16:07:11Z
dlang/dmd pull request #14302 "fix Issue 23247 - Deprecation: argument 0.0L for format specification "%La" must be double, not real" was merged into master: - 34c520611c191cbd6c7bdf43c181efd9c4e4290c by Iain Buclaw: fix Issue 23247 - Deprecation: argument 0.0L for format specification "%La" must be double, not real As we are no longer using the GNU/C89 extensions of scanf(), remove all GNU_a handling, this fixes the regression in parsing "%La". https://github.com/dlang/dmd/pull/14302