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Mark the *printf functions with __attribute__((format)). #80

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Mark the *printf functions with __attribute__((format)). #80

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19 changes: 19 additions & 0 deletions printf.h
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Original file line number Diff line number Diff line change
Expand Up @@ -58,6 +58,9 @@ void _putchar(char character);
* \return The number of characters that are written into the array, not counting the terminating null character
*/
#define printf printf_
#ifdef __GNUC__
__attribute__ ((format (__printf__, 1, 2)))
#endif
int printf_(const char* format, ...);


Expand All @@ -69,6 +72,9 @@ int printf_(const char* format, ...);
* \return The number of characters that are WRITTEN into the buffer, not counting the terminating null character
*/
#define sprintf sprintf_
#ifdef __GNUC__
__attribute__ ((format (__printf__, 2, 3)))
#endif
int sprintf_(char* buffer, const char* format, ...);


Expand All @@ -84,7 +90,14 @@ int sprintf_(char* buffer, const char* format, ...);
*/
#define snprintf snprintf_
#define vsnprintf vsnprintf_
#ifdef __GNUC__
__attribute__ ((format (__printf__, 3, 4)))
#endif
int snprintf_(char* buffer, size_t count, const char* format, ...);

#ifdef __GNUC__
__attribute__ ((format (__printf__, 3, 0)))
#endif
int vsnprintf_(char* buffer, size_t count, const char* format, va_list va);


Expand All @@ -95,6 +108,9 @@ int vsnprintf_(char* buffer, size_t count, const char* format, va_list va);
* \return The number of characters that are WRITTEN into the buffer, not counting the terminating null character
*/
#define vprintf vprintf_
#ifdef __GNUC__
__attribute__ ((format (__printf__, 1, 0)))
#endif
int vprintf_(const char* format, va_list va);


Expand All @@ -106,6 +122,9 @@ int vprintf_(const char* format, va_list va);
* \param format A string that specifies the format of the output
* \return The number of characters that are sent to the output function, not counting the terminating null character
*/
#ifdef __GNUC__
__attribute__ ((format (__printf__, 3, 4)))
#endif
int fctprintf(void (*out)(char character, void* arg), void* arg, const char* format, ...);


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