print.h File Reference

#include <cstdio>

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Macros
#define	STX_PANIC_EPRINTF_WITH(STX_ARG_BUFFER, STX_ARG_BUFFER_SIZE, STX_ARG_FORMAT, STX_ARG_VALUE)
	printf using a provided buffer More...
#define	STX_PANIC_EPRINTF(STX_ARG_STR_SIZE, STX_ARG_FORMAT, STX_ARG_VALUE)
	printf, makes own buffer More...

Detailed Description

Author

Basit Ayantunde rlama.nosp@m.rrr@.nosp@m.gmail.nosp@m..com

Date

2020-06-07

Copyright

MIT License

Copyright (c) 2020 Basit Ayantunde

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Safe snprintfs

Macro Definition Documentation

STX_PANIC_EPRINTF

#define STX_PANIC_EPRINTF	(		STX_ARG_STR_SIZE,
			STX_ARG_FORMAT,
			STX_ARG_VALUE
	)

Value:

{                                                                        \
    /* string length + terminating null character */                       \
    char fmt_buffer[STX_ARG_STR_SIZE + 1];                                 \
    int fmt_size = std::snprintf(fmt_buffer, STX_ARG_STR_SIZE + 1,         \
                                 STX_ARG_FORMAT, STX_ARG_VALUE);           \
    if (fmt_size >= STX_ARG_STR_SIZE) {                                    \
      std::fputs("<format buffer insufficient>", stderr);                  \
    } else if (fmt_size < 0) {                                             \
      std::fputs("<format implementation error>", stderr);                 \
    } else {                                                               \
      std::fputs(fmt_buffer, stderr);                                      \
    };                                                                     \
  }

printf, makes own buffer

STX_PANIC_EPRINTF_WITH

#define STX_PANIC_EPRINTF_WITH	(		STX_ARG_BUFFER,
			STX_ARG_BUFFER_SIZE,
			STX_ARG_FORMAT,
			STX_ARG_VALUE
	)

Value:

{                                                                   \
    int fmt_size = std::snprintf(STX_ARG_BUFFER, STX_ARG_BUFFER_SIZE, \
                                 STX_ARG_FORMAT, STX_ARG_VALUE);      \
    if (fmt_size >= STX_ARG_BUFFER_SIZE) {                            \
      std::fputs("<format buffer insufficient>", stderr);             \
    } else if (fmt_size < 0) {                                        \
      std::fputs("<format implementation error>", stderr);            \
    } else {                                                          \
      std::fputs(STX_ARG_BUFFER, stderr);                             \
    };                                                                \
  }

printf using a provided buffer