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minor tweaks in the overflow checking for VC++

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Josh Coalson
2001-07-09 18:22:46 +00:00
parent 970cd3df60
commit d37acf41a8
1 changed files with 14 additions and 2 deletions
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16
src/libFLAC/lpc.c
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@@ -216,7 +216,13 @@ void FLAC__lpc_compute_residual_from_qlp_coefficients(const FLAC__int32 data[],
sum += qlp_coeff[j] * (*(--history)); sum += qlp_coeff[j] * (*(--history));
#ifdef FLAC__OVERFLOW_DETECT #ifdef FLAC__OVERFLOW_DETECT
sumo += (FLAC__int64)qlp_coeff[j] * (FLAC__int64)(*history); sumo += (FLAC__int64)qlp_coeff[j] * (FLAC__int64)(*history);
if(sumo > 2147483647ll || sumo < -2147483648ll) { #ifdef _MSC_VER /* don't know how to do 64-bit literals in VC++ */
if(sumo < 0) sumo = -sumo;
if(sumo > 2147483647)
#else
if(sumo > 2147483647ll || sumo < -2147483648ll)
#endif
{
fprintf(stderr,"FLAC__lpc_compute_residual_from_qlp_coefficients: OVERFLOW, i=%u, j=%u, c=%d, d=%d, sumo=%lld\n",i,j,qlp_coeff[j],*history,sumo); fprintf(stderr,"FLAC__lpc_compute_residual_from_qlp_coefficients: OVERFLOW, i=%u, j=%u, c=%d, d=%d, sumo=%lld\n",i,j,qlp_coeff[j],*history,sumo);
} }
#endif #endif
@@ -261,7 +267,13 @@ void FLAC__lpc_restore_signal(const FLAC__int32 residual[], unsigned data_len, c
sum += qlp_coeff[j] * (*(--history)); sum += qlp_coeff[j] * (*(--history));
#ifdef FLAC__OVERFLOW_DETECT #ifdef FLAC__OVERFLOW_DETECT
sumo += (FLAC__int64)qlp_coeff[j] * (FLAC__int64)(*history); sumo += (FLAC__int64)qlp_coeff[j] * (FLAC__int64)(*history);
if(sumo > 2147483647ll || sumo < -2147483648ll) { #ifdef _MSC_VER /* don't know how to do 64-bit literals in VC++ */
if(sumo < 0) sumo = -sumo;
if(sumo > 2147483647)
#else
if(sumo > 2147483647ll || sumo < -2147483648ll)
#endif
{
fprintf(stderr,"FLAC__lpc_restore_signal: OVERFLOW, i=%u, j=%u, c=%d, d=%d, sumo=%lld\n",i,j,qlp_coeff[j],*history,sumo); fprintf(stderr,"FLAC__lpc_restore_signal: OVERFLOW, i=%u, j=%u, c=%d, d=%d, sumo=%lld\n",i,j,qlp_coeff[j],*history,sumo);
} }
#endif #endif