This may be indicative of dubious code in some cases, but it can also have valid use cases that are not easy to modify.
If desired, this could be re-enabled under a separate lint flag (analogous to -Wformat-nonliteral in GCC/Clang, which is available as an option but is not included in -Wformat or -Wall).
It is now stricter about invalid length modifiers. Also, "comp" is accepted where a floating-point type is expected (like the others, it is promoted to extended), and size specifiers are allowed with %n (now pretty much supported in the latest library version).
Mainly, this causes the messages from the format checker to be displayed after the relevant line is printed, along with any other error messages. The wording and formatting of some of the messages is also slightly adjusted, but there should be no substantive change in what is warned about.
commit 4265329097538640e9e21202f1b141bcd42a44f3
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date: Fri Mar 23 21:45:32 2018 -0400
indent to match standard indent.
commit 783518fbeb01d2df43ef2083d3341004c05e4e2e
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date: Fri Mar 23 20:21:15 2018 -0400
clean up the typenames
commit 29b627ecf5ca9b8a143761f85a1807a6ca35ddd9
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date: Fri Mar 23 20:18:04 2018 -0400
enable feature_hh, warn about %n with non-int modifier.
commit fc4ac8129e3772c4eda36658e344ec475938369c
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date: Fri Mar 23 15:13:47 2018 -0400
warn thar %lc, %ls, etc are unsupported.
commit 7e6b433ba0552f7e52f0f034d398e9195c764326
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date: Fri Mar 23 13:36:25 2018 -0400
warn about hh/ll modifier (if not supported)
commit 1943c9979d0013f9f38045ec04a962fbf0269f31
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date: Fri Mar 23 11:42:41 2018 -0400
use error facilities for format errors.
commit 7811168f56dca1387055574ba8d32638da2fad96
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date: Thu Mar 22 15:34:21 2018 -0400
add feature flags to disable c99 enhancements until orca lib is updated.
commit c2149cc5953155cfc3c3b4d0483cd25fb946b055
Author: Kelvin Sherlock <ksherlock@gmail.com>
Date: Thu Mar 22 08:59:10 2018 -0400
Add printf/scanf format checking [WIP]
This parses out the xprintf / xscanf format string and compares it with the function arguments.
enabled via #pragma lint 16.
