Hi, I just learned how to use d_edit_proc and was wondering how you convert the user generated string into an int format so that I could use it as a variable????
went I use atoi in the simple program
| 1 | #include <allegro.h> |
| 2 | #include <stdlib.h> |
| 3 | |
| 4 | char edittext[32] = "12345"; |
| 5 | int a; |
| 6 | |
| 7 | int main(int argc, char *argv[]){ |
| 8 | |
| 9 | allegro_init(); |
| 10 | install_keyboard(); |
| 11 | set_color_depth(24); |
| 12 | set_gfx_mode( GFX_AUTODETECT, 640, 480, 0, 0); |
| 13 | |
| 14 | a = atoi(edittext[32]); |
| 15 | |
| 16 | textprint>:(f(screen, font, SCREEN_W/2, SCREEN_H/2, makecol(255, 0, 0), "%d", a); |
| 17 | readkey(); |
| 18 | |
| 19 | return 0; |
| 20 | |
| 21 | } |
| 22 | END_OF_MAIN(); |
the compile log says
Compiler: Default compiler
Building Makefile: "C:\Dev-Cpp\Makefile.win"
Executing make...
make.exe -f "C:\Dev-Cpp\Makefile.win" all
g++.exe -c whatever.cpp -o whatever.o -I"C:/Dev-Cpp/lib/gcc/mingw32/3.4.2/include" -I"C:/Dev-Cpp/include/c++/3.4.2/backward" -I"C:/Dev-Cpp/include/c++/3.4.2/mingw32" -I"C:/Dev-Cpp/include/c++/3.4.2" -I"C:/Dev-Cpp/include"
whatever.cpp: In function `int _mangled_main(int, char**)':
whatever.cpp:14: error: invalid conversion from `char' to `const char*'
whatever.cpp:14: error: initializing argument 1 of `int atoi(const char*)'
whatever.cpp:16: warning: `textprintf' is deprecated (declared at C:/Dev-Cpp/include/allegro/alcompat.h:177)
whatever.cpp:16: warning: `textprintf' is deprecated (declared at C:/Dev-Cpp/include/allegro/alcompat.h:177)
make.exe: *** [whatever.o] Error 1
Execution terminated
a = atoi(edittext);
Thanks, it works now!;D
atoi() is ancient and depecated. strtol(edittext, NULL, 10); is the modern version. There is no strong reason to change it in this particular situation, but it's good to be modern.
edit: Actually, there is a good reason to use Allegro's built-in ustrtol() instead. It handles Unicode properly.