forked from len0rd/rockbox
f40bfc9267
Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97 Reviewed-on: http://gerrit.rockbox.org/137 Reviewed-by: Nils Wallménius <nils@rockbox.org> Tested-by: Nils Wallménius <nils@rockbox.org>
76 lines
2.1 KiB
C
76 lines
2.1 KiB
C
// Included at the beginning of library source files, after all other #include lines
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#ifndef BLARGG_SOURCE_H
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#define BLARGG_SOURCE_H
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// If debugging is enabled and expr is false, abort program. Meant for checking
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// caller-supplied parameters and operations that are outside the control of the
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// module. A failed requirement indicates a bug outside the module.
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// void require( bool expr );
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#if defined(ROCKBOX)
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#undef assert
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#define assert( expr )
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#undef require
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#define require( expr )
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#else
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#undef require
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#define require( expr ) assert( expr )
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#endif
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// Like printf() except output goes to debug log file. Might be defined to do
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// nothing (not even evaluate its arguments).
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// void dprintf( const char* format, ... );
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#if defined(ROCKBOX)
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#define dprintf DEBUGF
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#else
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static inline void blargg_dprintf_( const char* fmt, ... ) { }
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#undef dprintf
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#define dprintf (1) ? (void) 0 : blargg_dprintf_
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#endif
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// If enabled, evaluate expr and if false, make debug log entry with source file
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// and line. Meant for finding situations that should be examined further, but that
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// don't indicate a problem. In all cases, execution continues normally.
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#undef check
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#define check( expr ) ((void) 0)
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/* If expr yields non-NULL error string, returns it from current function,
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otherwise continues normally. */
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#undef RETURN_ERR
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#define RETURN_ERR( expr ) \
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do {\
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blargg_err_t blargg_return_err_ = (expr);\
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if ( blargg_return_err_ )\
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return blargg_return_err_;\
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} while ( 0 )
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/* If ptr is NULL, returns out-of-memory error, otherwise continues normally. */
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#undef CHECK_ALLOC
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#define CHECK_ALLOC( ptr ) \
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do {\
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if ( !(ptr) )\
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return "Out of memory";\
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} while ( 0 )
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#ifndef max
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#define max(a,b) (((a) > (b)) ? (a) : (b))
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#endif
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#ifndef min
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#define min(a,b) (((a) < (b)) ? (a) : (b))
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#endif
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// typedef unsigned char byte;
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typedef unsigned char blargg_byte;
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#undef byte
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#define byte blargg_byte
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// deprecated
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#define BLARGG_CHECK_ALLOC CHECK_ALLOC
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#define BLARGG_RETURN_ERR RETURN_ERR
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// BLARGG_SOURCE_BEGIN: If defined, #included, allowing redefition of dprintf and check
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#ifdef BLARGG_SOURCE_BEGIN
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#include BLARGG_SOURCE_BEGIN
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#endif
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#endif
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