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stb_image: Define JPEG-specific functions only when JPEG is needed #1707

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stb_image: Define JPEG-specific functions only when JPEG is needed #1707

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4 changes: 3 additions & 1 deletion stb_image.h
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Original file line number Diff line number Diff line change
Expand Up @@ -100,7 +100,7 @@ RECENT REVISION HISTORY:
Bug & warning fixes
Marc LeBlanc David Woo Guillaume George Martins Mozeiko
Christpher Lloyd Jerry Jansson Joseph Thomson Blazej Dariusz Roszkowski
Phil Jordan Dave Moore Roy Eltham
Phil Jordan Alexey Pavlov Dave Moore Roy Eltham
Hayaki Saito Nathan Reed Won Chun
Luke Graham Johan Duparc Nick Verigakis the Horde3D community
Thomas Ruf Ronny Chevalier github:rlyeh
Expand Down Expand Up @@ -1066,6 +1066,7 @@ static void *stbi__malloc_mad4(int a, int b, int c, int d, int add)
}
#endif

#ifndef STBI_NO_JPEG
// returns 1 if the sum of two signed ints is valid (between -2^31 and 2^31-1 inclusive), 0 on overflow.
static int stbi__addints_valid(int a, int b)
{
Expand All @@ -1082,6 +1083,7 @@ static int stbi__mul2shorts_valid(int a, int b)
if (b < 0) return a <= SHRT_MIN / b; // same as a * b >= SHRT_MIN
return a >= SHRT_MIN / b;
}
#endif

// stbi__err - error
// stbi__errpf - error returning pointer to float
Expand Down