progs/redbook: Silence warn_unused_result warnings.
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5fd84e0246
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6cfdb61f73
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@ -75,6 +75,7 @@ readImage( const char* filename, GLsizei* width, GLsizei *height )
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{
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{
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int n;
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int n;
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GLubyte* pixels;
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GLubyte* pixels;
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size_t num_read;
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FILE* infile = fopen( filename, "rb" );
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FILE* infile = fopen( filename, "rb" );
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@ -83,8 +84,10 @@ readImage( const char* filename, GLsizei* width, GLsizei *height )
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exit(1);
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exit(1);
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}
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}
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fread( width, sizeof( GLsizei ), 1, infile );
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num_read = fread( width, sizeof( GLsizei ), 1, infile );
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fread( height, sizeof( GLsizei ), 1, infile );
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assert(num_read == 1);
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num_read = fread( height, sizeof( GLsizei ), 1, infile );
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assert(num_read == 1);
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*width = bswap(*width);
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*width = bswap(*width);
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*height = bswap(*height);
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*height = bswap(*height);
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@ -101,7 +104,8 @@ readImage( const char* filename, GLsizei* width, GLsizei *height )
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return NULL;
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return NULL;
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}
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}
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fread( pixels, sizeof( GLubyte ), n, infile );
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num_read = fread( pixels, sizeof( GLubyte ), n, infile );
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assert(num_read == n);
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fclose( infile );
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fclose( infile );
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@ -83,6 +83,7 @@ readImage( const char* filename, GLsizei* width, GLsizei *height )
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{
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{
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int n;
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int n;
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GLubyte* pixels;
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GLubyte* pixels;
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size_t num_read;
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FILE* infile = fopen( filename, "rb" );
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FILE* infile = fopen( filename, "rb" );
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@ -91,8 +92,10 @@ readImage( const char* filename, GLsizei* width, GLsizei *height )
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exit(1);
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exit(1);
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}
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}
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fread( width, sizeof( GLsizei ), 1, infile );
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num_read = fread( width, sizeof( GLsizei ), 1, infile );
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fread( height, sizeof( GLsizei ), 1, infile );
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assert(num_read == 1);
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num_read = fread( height, sizeof( GLsizei ), 1, infile );
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assert(num_read == 1);
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*width = bswap(*width);
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*width = bswap(*width);
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*height = bswap(*height);
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*height = bswap(*height);
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@ -106,7 +109,8 @@ readImage( const char* filename, GLsizei* width, GLsizei *height )
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return NULL;
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return NULL;
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}
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}
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fread( pixels, sizeof( GLubyte ), n, infile );
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num_read = fread( pixels, sizeof( GLubyte ), n, infile );
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assert(num_read == n);
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fclose( infile );
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fclose( infile );
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@ -47,6 +47,7 @@
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*/
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*/
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#include <GL/glew.h>
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#include <GL/glew.h>
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#include <GL/glut.h>
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#include <GL/glut.h>
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#include <assert.h>
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#include <stdlib.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdio.h>
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@ -78,6 +79,7 @@ readImage( const char* filename, GLsizei* width, GLsizei *height )
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{
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{
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int n;
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int n;
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GLubyte* pixels;
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GLubyte* pixels;
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size_t num_read;
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FILE* infile = fopen( filename, "rb" );
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FILE* infile = fopen( filename, "rb" );
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@ -86,8 +88,10 @@ readImage( const char* filename, GLsizei* width, GLsizei *height )
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return NULL;
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return NULL;
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}
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}
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fread( width, sizeof( GLsizei ), 1, infile );
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num_read = fread( width, sizeof( GLsizei ), 1, infile );
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fread( height, sizeof( GLsizei ), 1, infile );
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assert(num_read == 1);
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num_read = fread( height, sizeof( GLsizei ), 1, infile );
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assert(num_read == 1);
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*width = bswap(*width);
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*width = bswap(*width);
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*height = bswap(*height);
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*height = bswap(*height);
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@ -101,7 +105,8 @@ readImage( const char* filename, GLsizei* width, GLsizei *height )
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return NULL;
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return NULL;
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}
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}
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fread( pixels, sizeof( GLubyte ), n, infile );
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num_read = fread( pixels, sizeof( GLubyte ), n, infile );
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assert(num_read == n);
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fclose( infile );
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fclose( infile );
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