From 03cac7318cfb0ba6c537c08f5fe8fad8c1986e21 Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Sat, 29 Aug 2015 02:25:48 +0200 Subject: add assert.h MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- src/assert.c | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 src/assert.c (limited to 'src') diff --git a/src/assert.c b/src/assert.c new file mode 100644 index 0000000..b21f916 --- /dev/null +++ b/src/assert.c @@ -0,0 +1,58 @@ +/** + * slibc — Yet another C library + * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org) + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ +#include +#include +#include +#include +#include +#include +#include + + + +/** + * The function that is called if an assertion fails. + * + * @param expression The expression that failed, `NULL` if `assert_perror` failed + * @param errnum The code of the fatal error, 0 if `assert` failed + * @param file The filename of the source cose whence the assertion was made + * @param line The line in the source code whence the assertion was made + * @param func The function in the source code whence the assertion was made + */ +void +__assert_fail(const char* expression, int errnum, const char* file, int line, const char* func) +{ + int tty = isatty(STDERR_FILENO); + + fprintf(stderr, + _("%(\033[00;01m%)%s%(\033[00m%): " + "%(\033[31m%)assertion error%(\033[00m%) " + "at line %(\033[33m%)%i%(\033[00m%) " + "of file %(\033[35m%)%s%(\033[00m%), " + "function %(\033[34m%)%s%(\033[00m%): " + "%(\033[31m%)%(exression failed: %)%s%(\033[00m%)\n"), + tty, program_invocation_name, tty, + tty, tty, + tty, line, tty, + tty, file, tty, + tty, func, tty, + tty, expression != NULL, (expression ? expression : stderror(errnum)), tty); + + abort(); +} + -- cgit v1.2.3-70-g09d2