cert-dcl16-c redirects here as an alias for this check.
By default, only the suffixes that begin with
llu, but not
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. ...
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.