chimie.cpp: In function `int main()': chimie.cpp:61: warning: assignment to non-pointer type `char' from NULL chimie.cpp:61: warning: argument to non-pointer type `char' from NULL chimie.cpp: In function `void compus(int&, STR*, int&, int)': chimie.cpp:90: warning: NULL used in arithmetic chimie.cpp:119: warning: assignment to non-pointer type `char' from NULL chimie.cpp:119: warning: argument to non-pointer type `char' from NULL chimie.cpp: In function `void atom(int&)': chimie.cpp:150: warning: assignment to non-pointer type `char' from NULL chimie.cpp:150: warning: argument to non-pointer type `char' from NULL