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-pedantic-errors

Generate errors if code violates strict ISO C and ISO C++.

If you use the -pedantic-errors option, the compiler does not use any language feature that conflicts with strict ISO C or ISO C++. The compiler generates an error if your code violates strict ISO language standard.

Default

-pedantic-errors is disabled by default.

Example

void foo(void)
{
    long long i; /* okay in nonstrict C90 */
}

Compiling this code with -pedantic-errors generates an error:

armclang --target=arm-arm-none-eabi -march=armv8-a file.c -c -std=c90 -pedantic-errors
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