readability-uppercase-literal-suffix¶
cert-dcl16-c redirects here as an alias for this check.
By default, only the suffixes that begin with l
(l
, ll
, lu
,
llu
, but not u
, ul
, ull
) are diagnosed by that alias.
hicpp-uppercase-literal-suffix redirects here as an alias for this check.
Detects when the integral literal or floating point (decimal or hexadecimal) literal has a non-uppercase suffix and provides a fix-it hint with the uppercase suffix.
All valid combinations of suffixes are supported.
auto x = 1; // OK, no suffix.
auto x = 1u; // warning: integer literal suffix 'u' is not upper-case
auto x = 1U; // OK, suffix is uppercase.
...
Options¶
- NewSuffixes¶
Optionally, a list of the destination suffixes can be provided. When the suffix is found, a case-insensitive lookup in that list is made, and if a replacement is found that is different from the current suffix, then the diagnostic is issued. This allows for fine-grained control of what suffixes to consider and what their replacements should be.
Example¶
Given a list L;uL:
l
->L
L
will be kept as is.ul
->uL
Ul
->uL
UL
->uL
uL
will be kept as is.ull
will be kept as is, since it is not in the listand so on.
- IgnoreMacros¶
If this option is set to true (default is true), the check will not warn about literal suffixes inside macros.