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A line contains one or more of the following trigraphs.
Warnings of this class will only be issued for code that is compiled with trigraph recognition enabled (for example, with gcc -trigraphs).
| Class Name | Trigraph | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Significance | style | |||||||||||||||||||||
| Mnemonic | LANG.STRUCT.TRIGRAPH | |||||||||||||||||||||
| Categories |
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| Availability | Available for C and C++. |
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| Enabling | Checks for this warning class are
disabled by default. To enable them, add the following WARNING_FILTER
rule to the project configuration file.
WARNING_FILTER += allow class="Trigraph" |
/* a trigraph in a comment ??/ */ /* 'Trigraph' warning issued here if trigraphs are enabled */ ??=define ONE 1 /* 'Trigraph' warning issued here if trigraphs are enabled */ /* (parse error otherwise) */ char *tristr = "??-??-"; /* 'Trigraph' warning issued here if trigraphs are enabled */ char *okstr = "??3"; /* ??3 is not a trigraph */
The following configuration file parameters affect checks for this warning class.
Japanese (ja)