sta-core/include/sta/assert.hpp
2022-04-24 13:42:34 +02:00

127 lines
3.2 KiB
C++

/**
* @brief Assertion handling.
*
* Configuration:
* STA_ASSERT_ENABLE: Enable module
* STA_ASSERT_DISABLE: Forces module off when defined
* STA_HALT: Override function called after failed asserts
* DEBUG: Automatically enables module when defined
* NDEBUG: Forces module off when defined
*
* Both `sta::assert_failed` and `sta::assert_halt` provide weak definitions and
* can be overridden by the application. `sta::assert_halt` is only called
* via the **STA_HALT** macro which can also be provided by the application.
*
* The default implementation of `sta::assert_failed` uses **STA_DEBUG_PRINT** internally
* and will not generate any output if the **DEBUG_SERIAL** module is disabled.
*/
#ifndef STA_ASSERT_HPP
#define STA_ASSERT_HPP
#include <sta/config.hpp>
#ifdef DEBUG
# ifndef STA_ASSERT_ENABLE
# define STA_ASSERT_ENABLE
# endif // !STA_ASSERT_ENABLE
#endif // DEBUG
#if defined(NDEBUG) || defined(STA_ASSERT_DISABLE)
# ifdef STA_ASSERT_ENABLE
# undef STA_ASSERT_ENABLE
# endif // STA_ASSERT_ENABLE
#endif // NDEBUG || STA_ASSERT_DISABLE
#ifdef STA_ASSERT_ENABLE
#include <cstdint>
namespace sta
{
/**
* @brief Handle failed assertions.
*
* @param expr Asserted expression or message
* @param file File name
* @param line Line number
*/
void assert_failed(const char * expr, const char * file, uint32_t line);
/**
* @brief Stop execution.
*/
void assert_halt();
} // namespace sta
// Use assert_halt if STA_HALT is not defined
# ifndef STA_HALT
# define STA_HALT() sta::assert_halt()
# endif // !STA_HALT
/**
* @brief Assert expression.
*
* @param expr Expression
*/
# define STA_ASSERT(expr) ((void)(!(expr) && (sta::assert_failed(#expr, __FILE__, __LINE__), 1) && (STA_HALT(), 1)))
/**
* @brief Assert expression.
*
* @param expr Expression
* @param msg Message shown on failure
*/
# define STA_ASSERT_MSG(expr, msg) ((void)(!(expr) && (sta::assert_failed(msg, __FILE__, __LINE__), 1) && (STA_HALT(), 1)))
/**
* @brief Assert expression if condition is true.
*
* @param cond Condition
* @param expr Expression
*/
# define STA_ASSERT_COND(cond, expr) ((void)((cond) ? STA_ASSERT(expr) : 1))
/**
* @brief Assert expression if condition is true.
*
* @param cond Condition
* @param expr Expression
* @param msg Message shown on failure
*/
# define STA_ASSERT_COND_MSG(cond, expr, msg) ((void)((cond) ? STA_ASSERT_MSG(expr, msg)))
#else // !STA_ASSERT_ENABLE
/**
* @brief Assert expression.
*
* @param expr Expression
*/
# define STA_ASSERT(expr, msg) ((void)0)
/**
* @brief Assert expression.
*
* @param expr Expression
* @param msg Message shown on failure
*/
# define STA_ASSERT_MSG(expr, msg) ((void)0)
/**
* @brief Assert expression if condition is true.
*
* @param cond Condition
* @param expr Expression
*/
# define STA_ASSERT_COND(cond, expr) ((void)0)
/**
* @brief Assert expression if condition is true.
*
* @param cond Condition
* @param expr Expression
* @param msg Message shown on failure
*/
# define STA_ASSERT_COND_MSG(cond, expr, msg) ((void)0)
#endif // !STA_ASSERT_ENABLE
#endif // STA_ASSERT_HPP