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53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
#ifndef _ASSERT_H
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#define _ASSERT_H
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/** @file
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*
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* Assertions
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*
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* This file provides two assertion macros: assert() (for run-time
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* assertions) and linker_assert() (for link-time assertions).
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*
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*/
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/**
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* Assert a condition at run-time.
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*
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* If the condition is not true, a debug message will be printed.
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* Assertions only take effect in debug-enabled builds (see DBG()).
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*
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* @todo Make an assertion failure abort the program
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*
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*/
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#define assert( condition ) \
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do { \
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if ( ! (condition) ) { \
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printf ( "assert(%s) failed at %s line %d [%s]\n", \
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#condition, __FILE__, __LINE__, \
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__FUNCTION__ ); \
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} \
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} while ( 0 )
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/**
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* Assert a condition at link-time.
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*
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* If the condition is not true, the link will fail with an unresolved
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* symbol (error_symbol).
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*
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* This macro is gPXE-specific. Do not use this macro in code
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* intended to be portable.
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*
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*/
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#define linker_assert( condition, error_symbol ) \
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if ( ! (condition) ) { \
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extern void error_symbol ( void ); \
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error_symbol(); \
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}
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#ifdef NDEBUG
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#undef assert
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#define assert(x) do {} while ( 0 )
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#endif
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#endif /* _ASSERT_H */
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