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stb_sprintf: fix unaligned access

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Fix an unaligned 32-bit access even if STB_SPRINTF_NOUNALIGNED was defined.
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Stefano Zanotti 2018-06-27 10:37:00 +02:00 committed by GitHub
parent e6afb9cbae
commit 05b45da629
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1 changed files with 11 additions and 1 deletions
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12
stb_sprintf.h
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@ -332,7 +332,17 @@ STBSP__PUBLICDEF int STB_SPRINTF_DECORATE(vsprintfcb)(STBSP_SPRINTFCB *callback,
if (callback) if (callback)
if ((STB_SPRINTF_MIN - (int)(bf - buf)) < 4) if ((STB_SPRINTF_MIN - (int)(bf - buf)) < 4)
goto schk1; goto schk1;
*(stbsp__uint32 *)bf = v; #ifdef STB_SPRINTF_NOUNALIGNED
if(((stbsp__uintptr)bf) & 3) {
bf[0] = f[0];
bf[1] = f[1];
bf[2] = f[2];
bf[3] = f[3];
} else
#endif
{
*(stbsp__uint32 *)bf = v;
}
bf += 4; bf += 4;
f += 4; f += 4;
} }