Compilare: user.c: In function ‘eliminare’: user.c:7:5: warning: implicit declaration of function ‘strlen’ [-Wimplicit-function-declaration] for(i=0;i<strlen(s);i++) ^ user.c:7:15: warning: incompatible implicit declaration of built-in function ‘strlen’ [enabled by default] for(i=0;i<strlen(s);i++) ^ user.c:9:13: warning: implicit declaration of function ‘strcpy’ [-Wimplicit-function-declaration] strcpy(s+i,s+i+1); ^ user.c:9:13: warning: incompatible implicit declaration of built-in function ‘strcpy’ [enabled by default] user.c:11:15: warning: incompatible implicit declaration of built-in function ‘strlen’ [enabled by default] for(i=0;i<strlen(s);i++) ^ user.c:13:13: warning: incompatible implicit declaration of built-in function ‘strcpy’ [enabled by default] strcpy(s+i,s+i+1); ^ user.c:15:9: warning: incompatible implicit declaration of built-in function ‘strcpy’ [enabled by default] strcpy(s,s+1); ^ user.c: In function ‘main’: user.c:38:5: warning: incompatible implicit declaration of built-in function ‘strcpy’ [enabled by default] strcpy(cap,""); ^ user.c:43:15: warning: incompatible implicit declaration of built-in function ‘strlen’ [enabled by default] s[strlen(s)-1]='\0'; ^ user.c:44:13: warning: implicit declaration of function ‘strtok’ [-Wimplicit-function-declaration] cuv=strtok(s,":,"); ^ user.c:44:16: warning: assignment makes pointer from integer without a cast [enabled by default] cuv=strtok(s,":,"); ^ user.c:45:13: warning: implicit declaration of function ‘strdup’ [-Wimplicit-function-declaration] c=strdup(cuv); ^ user.c:45:14: warning: assignment makes pointer from integer without a cast [enabled by default] c=strdup(cuv); ^ user.c:51:21: warning: implicit declaration of function ‘strcat’ [-Wimplicit-function-declaration] {strcat(cap,c); strcat(cap,","); d=0; } ^ user.c:51:22: warning: incompatible implicit declaration of built-in function ‘strcat’ [enabled by default] {strcat(cap,c); strcat(cap,","); d=0; } ^ user.c:53:22: warning: incompatible implicit declaration of built-in function ‘strcat’ [enabled by default] {strcat(inf,c); strcat(inf,","); d=0;} ^ user.c:55:17: warning: implicit declaration of function ‘strchr’ [-Wimplicit-function-declaration] if(strchr(inf,'}') || strchr(cap,'}'))