my C utils lib

• mrs_strings.h: string manipulation library
• mrv_vector.h: vector library
• mrt_test.h: mini test library
• mrl_logger.h: logging utilities
• mrd_debug.h: memory allocation debugging info. enable by defining DEBUG eg: #define DEBUG or the -DDEBUG gcc flag
• mrm_misc.h: useful defines and cafebabe!

mrd_debug example build

CC = gcc

CSTANDARD = c99

CFLAGS_DEBUG = -Wall -Wextra -Werror \
	 -Wpointer-arith -Wcast-align \
     -Wstrict-prototypes -Wwrite-strings -Waggregate-return \
     -Wswitch-default -Wswitch-enum -Wunreachable-code \
	 -Wunused-parameter -Wuninitialized -Winit-self \
 	 -Wbad-function-cast -Wcast-align\
	 -Wformat=2 -Wlogical-op -Wmissing-include-dirs \
     -Wredundant-decls -Wsequence-point -Wshadow \
	 -Wswitch -Wundef -Wunused-but-set-parameter \
	 -Wcast-qual  -Wfloat-equal -Wnested-externs \
	 -O0 -g -rdynamic \
	 -Wpedantic  -pedantic-errors \
     -DDEBUG \
	 -fsanitize=address \
     # BEWARE -rdynamic breaks leak check on fsanitize

CFLAGS = -Wall -Wextra -Werror \
	 -std=$(CSTANDARD) \
	 -O2

TEST_TARGET = test.out
TEST_SRC =  test/*.c *.c

DEBUG_LEVEL = MRD_DEBUG_BACKTRACE
# DEBUG_LEVEL = MRD_DEBUG_DEFAULT

.PHONY: all build run clean format format-check bear test check build-debugger-preload debug build-debug

all: test

test: build run

build:
	$(CC) $(CFLAGS) -o $(TEST_TARGET) $(TEST_SRC)

run:
	./$(TEST_TARGET)

clean:
	-rm -f $(TEST_TARGET)

format:
	find *.c *.h test/* | xargs clang-format -i --verbose

format-check:
	find *.c *.h test/* | xargs clang-format --dry-run --Werror --verbose

bear: # this is for creating the compile_commands.json file
	rm -f compile_commands.json && bear -- make build-debug

check: format-check build-debug run

debug:  build-debug run

build-debug:
	$(CC) $(CFLAGS_DEBUG) -D $(MEMORY_DEBUGGER_LOG_LEVEL) -o $(TEST_TARGET) $(TEST_SRC)

• note: mrd_debug.h requires the build flag -rdynamic do show backtrace symbols
• note: -rdynamic breaks -fsanitize=address
• note: static functions wont be displayed as the symbol isnt exported :(

TODO

• log to defined out
• dynamic array lib
• whitespace remover
• debug maintain only active allocations. eg: freed and not realloced to something not freed
• add left rigth comparison for failed tests
• malloc calloc realloc free wrappers for debugging memory leaks eg: this PTR (id) with this DATA that was allocated HERE, was not freed
• optimize mrd_debug. map offsets to log messages so i dont have to calculate multiple times
• useful runtime error message. something with coredump file abort()

i hope you like UB!