Synopsis

(Required) signed and unsigned char type shall be used only for the storage and use of numeric values.

Enabled by default

Yes

Severity/Certainty

Low/High

Full description

A signed or unsigned char is used on character data.

Coding standards

Code examples

The following code example fails the check and will give a warning:

void example(void) {
  unsigned char c = 'c';
}

The following code example passes the check and will not give a warning about this issue:

void example(void) {
  char c = 'c';
}