TP4: Add the famous palindrome TP example

Signed-off-by: Jérôme Benoit <jerome.benoit@piment-noir.org>

diff --git a/TP4/Makefile b/TP4/Makefile
new file mode 100644 (file)
index 0000000..61cb8d2
--- /dev/null
+++ b/TP4/Makefile
@@ -0,0 +1,79 @@
+# Sample Makefile to build simple project.
+#
+# This Makefile expect all source files (.c) to be at the same level, in the
+# current working directory.
+#
+# It will automatically generate dependencies, compile all files, and produce a
+# binary using the provided name.
+#
+# Set BINARY_NAME to the name of the binary file to build.
+# Set BUILD_TYPE to either debug or release
+#
+# Automatic dependencies code from:
+# http://make.mad-scientist.net/papers/advanced-auto-dependency-generation/#tldr
+BINARY_NAME=palindrome
+BUILD_TYPE=debug
+
+# ====================================
+# DO NOT CHANGE STUFF BEYOND THIS LINE
+# ====================================
+
+all: $(BINARY_NAME)
+
+CC=gcc
+LD=gcc
+
+WARN_FLAGS = -Wall -Wextra
+STD_FLAG = -std=c99
+
+ifeq ($(BUILD_TYPE),debug)
+BUILDDIR := .build/debug
+DEBUG_FLAG = -g
+STRIP_FLAG =
+OPTI_FLAG = -O0
+else
+BUILDDIR := .build/release
+DEBUG_FLAG =
+STRIP_FLAG = -s
+OPTIFLAG = -O3
+endif
+
+CFLAGS := $(CFLAGS) $(WARN_FLAGS) $(STD_FLAG) $(OPTI_FLAG) $(DEBUG_FLAG)
+LDFLAGS := $(LDFLAGS) $(STRIP_FLAG)
+
+OBJDIR := $(BUILDDIR)/objs
+$(shell mkdir -p $(OBJDIR))
+
+SRCS=$(wildcard *.c)
+OBJS=$(patsubst %.c,$(OBJDIR)/%.o,$(SRCS))
+
+DEPDIR := $(BUILDDIR)/deps
+$(shell mkdir -p $(DEPDIR))
+DEPFLAGS = -MT $@ -MMD -MP -MF $(DEPDIR)/$*.Td
+POSTCOMPILE = mv -f $(DEPDIR)/$*.Td $(DEPDIR)/$*.d
+
+$(BINARY_NAME): $(OBJS)
+       @echo "[LD ] $@"
+       @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
+
+$(OBJDIR)/%.o: %.c $(DEPDIR)/%.d
+       @echo "[C  ] $*"
+       @$(CC) $(DEPFLAGS) $(CFLAGS) -c $< -o $@
+       @$(POSTCOMPILE)
+
+$(DEPDIR)/%.d: ;
+
+.PRECIOUS: $(DEPDIR)/%.d
+
+include $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(SRCS))))
+
+clean:
+       @echo "[CLN]"
+       -@rm -r $(BUILDDIR)
+       -@rm $(BINARY_NAME)
+
+disassemble: $(BINARY_NAME)
+       objdump -d $< | less
+
+symbols: $(BINARY_NAME)
+       objdump -t $< | sort | less

diff --git a/TP4/palindrome.c b/TP4/palindrome.c
new file mode 100644 (file)
index 0000000..a84c08f
--- /dev/null
+++ b/TP4/palindrome.c
@@ -0,0 +1,42 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <string.h>
+
+#define LEN_MAX 40
+
+bool palindrome_iter(char* mot, int longeur) {
+    int i = 0;
+    int j = longeur - 1;
+
+    while (i <= j) {
+        if (mot[i] != mot[j]) { return false; }        
+        i++;
+        j--;
+    }
+    return true;
+}
+
+bool palindrome_rec_aux(char* mot, int i, int j) {
+    if (i >= j) { return true; }
+    if (mot[i] != mot[j]) { return false; }
+    return palindrome_rec_aux(mot, i+1, j-1);
+}
+
+bool palindrome_rec(char* mot, int longueur) {
+    return palindrome_rec_aux(mot, 0, longueur-1);
+}
+
+
+int main() {
+    char mot[LEN_MAX];
+
+    printf("Saisir un mot\n");
+    scanf("%s", mot);
+    if (palindrome_rec(mot, strlen(mot)))
+        printf("%s est un palindrome\n", mot);
+    else
+        printf("%s n'est pas un palindrome\n", mot);
+
+    return 0;
+}