xaizek / unused-funcs (License: GPLv2+) (since 2018-12-07)
Clang-based standalone tool that detects unused external functions in a set of source files.
<root> / tests / main.c (cbca7dc0b381672187d18b558c4ebaabbd81b72c) (323B) (mode 100644) [raw]
static void firstStatic(void);

static void secondStatic(void);

void firstExtern(void);

extern void secondExtern(void);

static void
firstStatic(void)
{
}

static void
secondStatic(void)
{
}

void
firstExtern(void)
{
}

void
secondExtern(void)
{
}

int
main(void)
{
    firstExtern();
    secondStatic();
    return 0;
}
Hints

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