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48 lines
2.1 KiB
C
48 lines
2.1 KiB
C
#ifndef KERNAUX_INCLUDED_PRINTF
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#define KERNAUX_INCLUDED_PRINTF
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdarg.h>
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#include <stddef.h>
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/**
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* Tiny printf/vprintf implementation
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* \param out An output function which takes one character and an argument pointer
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* \param arg An argument pointer for user data passed to output function
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* \param format A string that specifies the format of the output
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* \param va A value identifying a variable arguments list
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* \return The number of characters that are sent to the output function, not counting the terminating null character
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*/
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int kernaux_printf(void (*out)(char character, void* arg), void* arg, const char* format, ...);
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int kernaux_vprintf(void (*out)(char character, void* arg), void* arg, const char* format, va_list va);
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/**
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* Tiny snprintf/vsnprintf implementation
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* \param buffer A pointer to the buffer where to store the formatted string
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* \param count The maximum number of characters to store in the buffer, including a terminating null character
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* \param format A string that specifies the format of the output
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* \param va A value identifying a variable arguments list
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* \return The number of characters that COULD have been written into the buffer, not counting the terminating
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* null character. A value equal or larger than count indicates truncation. Only when the returned value
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* is non-negative and less than count, the string has been completely written.
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*/
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int kernaux_snprintf(char* buffer, size_t count, const char* format, ...);
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int kernaux_vsnprintf(char* buffer, size_t count, const char* format, va_list va);
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/**
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* Tiny sprintf implementation
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* Due to security reasons (buffer overflow) YOU SHOULD CONSIDER USING (V)SNPRINTF INSTEAD!
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* \param buffer A pointer to the buffer where to store the formatted string. MUST be big enough to store the output!
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* \param format A string that specifies the format of the output
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* \return The number of characters that are WRITTEN into the buffer, not counting the terminating null character
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*/
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int kernaux_sprintf(char* buffer, const char* format, ...);
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#ifdef __cplusplus
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}
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#endif
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#endif
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