From f479d8d2051c9917f623d86a7fd295f98dcff700 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E2=80=9C=5BJMF=5D=E2=80=9D?= <jose.fullana@upmc.fr>
Date: Thu, 21 Oct 2021 12:47:20 +0200
Subject: [PATCH] New

---
 TP5/a.out       | Bin 49560 -> 49600 bytes
 TP5/carre.c     |  51 ++++++++++++++++++++++++++++++++++++++++++++++++
 TP5/fileread.c  |  15 ++++++++++----
 TP5/filewrite.c |   6 +++---
 4 files changed, 65 insertions(+), 7 deletions(-)
 create mode 100644 TP5/carre.c

diff --git a/TP5/a.out b/TP5/a.out
index 3e71355e4634f2e5eddca58d1c5f742966cec9df..f4c157d82c72007cf98cb70fa91ca1c57c85a817 100755
GIT binary patch
delta 1292
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z)DA=iL5~(fmOc#e;jRW7;lmUXf`aHFTo`CizOC=v-GxYpegA&n`Of*B@9f-XAzlgb
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z6xyY4Xu6?c%(N;XV7*`&t^+ZHtU%0aNgSbB`cmI6)PrYO?ysPS`ueh4;i<a4g|@yY
zWH9O9I~<|)LaWYhrB30F>6KP`4a&<vR@URf;!T?FC=A+3w1tB$h%CHN4I&YIoW$EO
z4Uy=4dXx2H|0%RHi4_JW@m9{Hm<i3Ncw@8&JQ*uQ>P?Zcqhb>6O_Rtc!u=sqAjRw7
zN3bH}Eg}s<dbgNxJDcoO4TGs5k#>3gas+S5I2BU32u@|*WV2aVtQ~I|!xvy0iCV+3
z{TkXoud>(%jWWBSlK2FN*DA098t_=oB$x@!Cx9XbPsSUkC<b#J6Dr3I8OMNQLgUEj
zs@!5SPN>`xnRhC;jdrXU7mC#tW6aO<{00#4^n!sFsyrLO&w#+@`2+T{MFI+(O9?^(
z3Od1P1v1`_;5E38QYa@f{CbZ`Tgtd_MqOi#gcA09ANN`RjAyg8tTbEuOVtOUd!p69
z!E_B|Yd<4|mOP+P<|pjvVSl2`SLR)1-Y$6PE=&I#dhpo7{0Yl27Uy&RnJMpei`U_|
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S7N`gMPgAth(fjd6xW2#3Gf^P`

delta 864
zcmZ8fQD{<882*pf+caq2+Xx)Xc4JAa!I-o$Vd-@b;tf`7)S`lLI+YEEGj-I8F~dC+
z!={`U2MdB8BG!Xt)Ox#8P>&MyRunyydoz6TL9qYm8H5M^|Np-4|NnE(x&P7ALOv~I
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z$~41|yj5*;t*T|lwp*#$hL*WlFF<7+DQ@Cz)GRmk&6PSf-$AKBDg&$#dn)Yg4qZ!s
zlx}@!+FyGBn)Wv>f8%W{?4h5^*xqB9ywbGi01vu=4)%XHo6Uu8hQ2Y>$Iuss*oF2#
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a+99+qv`!5r>MNZ%#_z>%#P340rQv_`zQwQr

diff --git a/TP5/carre.c b/TP5/carre.c
new file mode 100644
index 0000000..0c3e37a
--- /dev/null
+++ b/TP5/carre.c
@@ -0,0 +1,51 @@
+#include <stdio.h>
+
+#define N 3
+
+int main () {
+
+  // int A[N][N] = {1,2,3,4,5,6,7,8,9};  // Initialisation pas magique
+
+  int A[N][N] = {4,2,3,2,3,4,3,4,2};  // Initialisation pas magique
+
+ int i , j;
+
+ // diagonale
+
+ int sommed1 = 0, sommed2 = 0;
+ 
+ for(i=0;i<N;i=i+1)
+   {
+     sommed1 = sommed1 + A[i][i];
+     sommed2 = sommed2 + A[i][N-1-i];
+   }
+
+ if ( sommed1 != sommed2 )
+   {
+     printf("stop, pas magique\n");
+     return 1;
+   }
+
+ // hors diagonale
+int sommeV , sommeH ;
+for(i=0;i<N;i=i+1)
+  {
+    sommeH = 0 ;
+    sommeV = 0 ;
+    for (j=0;j<N;j++)
+      {
+        sommeH = sommeH + A[i][j] ;
+        sommeV = sommeV + A[j][i] ;
+           }
+     if ( sommeH != sommed1 || sommeV != sommed1 )
+   {
+     printf("stop, pas magique\n");
+     return 1;
+   }
+     
+  }
+
+ printf("carre magique = %d \n",sommed1);
+    return 1;
+
+  }
diff --git a/TP5/fileread.c b/TP5/fileread.c
index 41165c2..b40f8e7 100644
--- a/TP5/fileread.c
+++ b/TP5/fileread.c
@@ -5,12 +5,19 @@ int main () {
 float a = 1.;
 int b = 1 ;
   
-FILE *point = fopen("data.dat","r");
+ FILE *point = fopen("data.dat","r"); // ouverture file "r" lecture
 
- fscanf(point,"%f %d \n",&a,&b);
+ // test necessaire pour ouverture en lecture
+ if(point==NULL) {
+    puts("Echec de l'ouverture. Fin du programme.");
+    return 0;
+ }
 
- printf("%f %d \n",a,b);
+ 
+ fscanf(point,"%f %d \n",&a,&b); // lecture file
 
- fclose(point);
+ printf("%f %d \n",a,b);  // print
+
+ fclose(point);  // fermeture file
 
    }
diff --git a/TP5/filewrite.c b/TP5/filewrite.c
index 9e55c00..bdcb7c5 100644
--- a/TP5/filewrite.c
+++ b/TP5/filewrite.c
@@ -5,10 +5,10 @@ int main () {
 float a = 1.;
 int b = 1 ;
   
-FILE *point = fopen("data.dat","w");
+ FILE *point = fopen("data.dat","w"); // ouverture file "w" ecriture
 
- fprintf(point,"%f %d \n",a,b);
+ fprintf(point,"%f %d \n",a,b); // ecriure file
 
- fclose(point);
+ fclose(point); // fermeture
 
    }