done sortstrings
This commit is contained in:
Claudio Maggioni
parent
93c8c5f0d8
commit
7fb7197e75
6 changed files with 258 additions and 0 deletions
144
sortstrings/Makefile
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144
sortstrings/Makefile
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OBJECTS = sortstrings.o
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CFLAGS=-Wall -g
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CXXFLAGS=-Wall -g
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SHELL=/bin/bash
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TIMEOUT=8
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TESTS_DIR=tests
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TESTS_SH:=$(wildcard $(TESTS_DIR)/*.sh)
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TESTS_SH_NAMES:=$(patsubst $(TESTS_DIR)/%.sh, %, $(TESTS_SH))
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TESTS_IO:=$(wildcard $(TESTS_DIR)/*.in)
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TESTS_IO_NAMES:=$(patsubst $(TESTS_DIR)/%.in, %, $(TESTS_IO))
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TESTS_C:=$(wildcard $(TESTS_DIR)/*.c)
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TESTS_CXX:=$(wildcard $(TESTS_DIR)/*.cc)
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TESTS_BIN:=$(patsubst $(TESTS_DIR)/%.c, $(TESTS_DIR)/%, $(TESTS_C)) \
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$(patsubst $(TESTS_DIR)/%.cc, $(TESTS_DIR)/%, $(TESTS_CXX))
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TESTS_BIN_NAMES:=$(patsubst $(TESTS_DIR)/%.c, %, $(TESTS_C)) $(patsubst $(TESTS_DIR)/%.cc, %, $(TESTS_CXX))
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.PHONY: all
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all: compile check
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.PHONY: compile-program
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compile: $(PROGRAMS) $(OBJECTS)
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.PHONY: check
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check: check-bin check-io-sh
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.PHONY: check-io-sh
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check-io-sh: compile $(TESTS_IO) $(TESTS_SH)
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@exec 2> /dev/null; \
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for p in $(foreach prog,$(PROGRAMS),$(dir $(prog))$(prog)); do \
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echo "Testing $${p}:" ; \
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for t in $(TESTS_IO_NAMES); do \
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echo -n "Running test $$t..." ; \
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"$$p" < "$(TESTS_DIR)/$$t.in" > "$$t.out" 2>&1 & \
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prog_pid=$$!; \
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( sleep $(TIMEOUT); kill $$prog_pid > /dev/null 2>&1 ) & \
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killer_pid=$$!; \
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wait $$prog_pid; \
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res=$$?; \
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if test $$res -gt 128; \
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then \
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case `kill -l $$(($$res - 128))` in \
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ABRT ) echo "FAIL"; ;; \
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TERM ) echo "TIME OUT"; ;; \
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* ) echo "UNKNOWN ERROR"; ;; \
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esac ; \
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echo "see $(TESTS_DIR)/$$t.in" ;\
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echo "you may run $$p < $(TESTS_DIR)/$$t.in" ;\
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echo "to see what went wrong";\
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rm -f "$$t.out" ;\
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else \
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kill $$killer_pid > /dev/null 2>&1 ;\
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wait $$killer_pid; \
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if cmp -s "$$t.out" "$(TESTS_DIR)/$$t.expected"; \
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then \
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echo "PASS" ;\
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rm -f "$$t.out" ;\
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else \
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echo "FAIL" ;\
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echo "see $(TESTS_DIR)/$$t.sh" ;\
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echo "run diff $$t.out $(TESTS_DIR)/$$t.expected";\
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echo "to see the difference between the actual and expected output";\
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fi; \
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fi; \
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done; \
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for t in $(TESTS_SH_NAMES); do \
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echo -n "Running test $$t..." ; \
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$(SHELL) "$(TESTS_DIR)/$$t.sh" "$$p" > "$$t.out" 2>&1 & \
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prog_pid=$$!; \
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( sleep $(TIMEOUT); kill $$prog_pid > /dev/null 2>&1 ) & \
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killer_pid=$$!; \
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wait $$prog_pid; \
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res=$$?; \
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if test $$res -gt 128; \
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then \
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case `kill -l $$(($$res - 128))` in \
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ABRT ) echo "FAIL"; ;; \
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TERM ) echo "TIME OUT"; ;; \
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* ) echo "UNKNOWN ERROR"; ;; \
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esac ; \
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echo "see $(TESTS_DIR)/$$t.sh" ;\
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echo "you may run $(TESTS_DIR)/$$t.sh $$p" ;\
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echo "to see what went wrong";\
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rm -f "$$t.out" ;\
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else \
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kill $$killer_pid > /dev/null 2>&1 ;\
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wait $$killer_pid; \
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if cmp -s "$$t.out" "$(TESTS_DIR)/$$t.expected"; \
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then \
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echo "PASS" ;\
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rm -f "$$t.out" ;\
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else \
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echo "FAIL" ;\
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echo "see $(TESTS_DIR)/$$t.sh" ;\
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echo "run diff $$t.out $(TESTS_DIR)/$$t.expected";\
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echo "to see the difference between the actual and expected output";\
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fi; \
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fi; \
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done; \
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done
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$(TESTS_DIR)/%: $(TESTS_DIR)/%.c $(OBJECTS)
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$(CC) $(CFLAGS) $(LDFLAGS) $(TESTS_DIR)/$*.c $(OBJECTS) -o $@
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$(TESTS_DIR)/%: $(TESTS_DIR)/%.cc $(OBJECTS)
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$(CXX) $(CXXFLAGS) $(LDFLAGS) $(TESTS_DIR)/$*.cc $(OBJECTS) -o $@
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.PHONY: check-bin
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check-bin: $(TESTS_BIN)
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@exec 2> /dev/null; \
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for t in $(TESTS_BIN_NAMES); do \
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echo -n "Running test $$t..." ; \
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"$(TESTS_DIR)/$$t" &\
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prog_pid=$$!; \
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( sleep $(TIMEOUT); kill $$prog_pid > /dev/null 2>&1 ) & \
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killer_pid=$$!; \
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wait $$prog_pid; \
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res=$$?; \
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if test $$res -gt 128; \
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then \
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case `kill -l $$(($$res - 128))` in \
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ABRT ) echo "FAIL"; ;; \
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TERM ) echo "TIME OUT"; ;; \
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* ) echo "UNKNOWN ERROR"; ;; \
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esac ; \
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echo "you may run $(TESTS_DIR)/$$t to see what went wrong" ;\
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else \
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kill $$killer_pid > /dev/null 2>&1 ;\
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wait $$killer_pid; \
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echo "PASS" ;\
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fi; \
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done
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.PHONY: clean
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clean:
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rm -f $(PROGRAMS) $(OBJECTS) tests/*.o $(TESTS_BIN)
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30
sortstrings/sortstrings.c
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30
sortstrings/sortstrings.c
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#define MAX_N 1000
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int compar(const void* string1, const void* string2) {
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const char** s1 = (const char**) string1;
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const char** s2 = (const char**) string2;
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return strcmp(*s1, *s2);
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}
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void sort_strings(const char* input, const char* output, unsigned int n) {
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const char* strings[MAX_N];
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size_t i = 0;
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size_t offset = 0;
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for (i = 0; i < n; i++) {
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strings[i] = input + offset;
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offset += strlen(input + offset) + 1; // + 1 for NUL
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}
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qsort(strings, n, sizeof(const char*), &compar);
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offset = 0;
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for (i = 0; i < n; i++) {
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const size_t len = strlen(strings[i]);
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strncpy((char*) output + offset, (char*) strings[i], len + 1);
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offset += len + 1;
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}
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}
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11
sortstrings/tests/test0.c
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11
sortstrings/tests/test0.c
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#include <assert.h>
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#include <string.h>
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extern void sort_strings(const char * input, char * output, unsigned int n);
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int main() {
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char buf[100];
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sort_strings("", buf, 1);
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assert(memcmp(buf, "", 1) == 0);
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return 0;
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}
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15
sortstrings/tests/test1.c
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15
sortstrings/tests/test1.c
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#include <assert.h>
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#include <string.h>
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extern void sort_strings(const char * input, char * output, unsigned int n);
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int main() {
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char buf[100];
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sort_strings("ciao", buf, 1);
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assert(memcmp(buf, "ciao", 5) == 0);
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sort_strings("ciao\0blah", buf, 2);
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assert(memcmp(buf, "blah\0ciao", 10) == 0);
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return 0;
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}
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37
sortstrings/tests/test2.c
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37
sortstrings/tests/test2.c
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#include <assert.h>
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#include <string.h>
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extern void sort_strings(const char * input, char * output, unsigned int n);
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int main() {
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char buf[1000];
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sort_strings("ciao\0ciao", buf, 2);
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assert(memcmp(buf, "ciao\0ciao", 10) == 0);
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sort_strings("a\0b", buf, 2);
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assert(memcmp(buf, "a\0b", 4) == 0);
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sort_strings("a\0b\0c", buf, 3);
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assert(memcmp(buf, "a\0b\0c", 6) == 0);
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sort_strings("b\0c\0a", buf, 3);
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assert(memcmp(buf, "a\0b\0c", 6) == 0);
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sort_strings("c\0a\0b", buf, 3);
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assert(memcmp(buf, "a\0b\0c", 6) == 0);
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sort_strings("c\0a\0b", buf, 1);
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assert(memcmp(buf, "c", 2) == 0);
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sort_strings("c\0a\0b", buf, 2);
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assert(memcmp(buf, "a\0c", 2) == 0);
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sort_strings("a\0a", buf, 2);
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assert(memcmp(buf, "a\0a", 4) == 0);
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sort_strings("b\0a\0a\0a\0b", buf, 5);
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assert(memcmp(buf, "a\0a\0a\0b\0b", 10) == 0);
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return 0;
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}
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21
sortstrings/tests/test4.c
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21
sortstrings/tests/test4.c
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#include <assert.h>
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#include <string.h>
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extern void sort_strings(const char * input, char * output, unsigned int n);
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const char * S_sorted = "cfreq\0concatenate\0concatenate/tests\0coursesdb\0deletedigits\0deletedigits/tests\0findstrings\0flipline\0flipline/tests\0flipstream\0linkedlist\0redactdigits\0redactdigits/tests\0topcolor\0topcolor/tests\0volumes\0volumes/tests\0wordcount\0wordcount/tests";
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const char * S = "concatenate/tests\0concatenate\0linkedlist\0topcolor/tests\0topcolor\0flipstream\0deletedigits/tests\0deletedigits\0coursesdb\0volumes/tests\0volumes\0cfreq\0wordcount/tests\0wordcount\0flipline/tests\0flipline\0findstrings\0redactdigits/tests\0redactdigits";
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int main() {
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char buf[1000];
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sort_strings("ciao\0cia", buf, 2);
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assert(memcmp(buf, "cia\0ciao", 9) == 0);
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sort_strings(S, buf, 19);
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assert(memcmp(buf, S_sorted, 239) == 0);
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return 0;
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}
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