<\/p>\n\n\n\n
$ls\nascii-table avg.txt case-changer.c env-var-set functions_ver1.c mph-to-kph_v2.c\nascii-table.c avg-with-garbage.txt env-var env-var-set.c functions_ver2.c output.c\nascii-table.md case-changer env-var.c exist.sh mph-to-kph.c\n$cat functions_ver1.c\n#include <stdio.h>\nint func1(void);\nint func2(void);\n\nint main(int argc, char *argv[])\n{\n printf(\"Inside main\\n\");\n printf(\"Calling function one\\n\");\n if (func1())\n {\n printf(\"Everything ok from function one\\n\");\n printf(\"Return with 0 from main - all ok\\n\");\n return 0;\n }\n else\n {\n printf(\"Caught an error from function one\\n\");\n printf(\"Return with 1 from main - error\\n\");\n return 1;\n }\n return 0; \/* We shouldn't reach this, but \n just in case *\/\n}\n\nint func1(void)\n{\n printf(\"Inside function one\\n\");\n printf(\"Calling function two\\n\");\n if (func2())\n {\n printf(\"Everything ok from function two\\n\");\n return 1;\n }\n else\n {\n printf(\"Caught an error from function two\\n\");\n return 0;\n }\n}\n\nint func2(void)\n{\n printf(\"Inside function two\\n\");\n printf(\"Returning with 0 (error) from \"\n \"function two\\n\");\n return 0;\n}\n$gcc functions_ver1.c -o functions_ver1.c \ngcc: fatal error: input file \u2018functions_ver1.c\u2019 is the same as output file\ncompilation terminated.\n$gcc functions_ver1.c -o functions_ver1\n$.\/functions_ver1 \nInside main\nCalling function one\nInside function one\nCalling function two\nInside function two\nReturning with 0 (error) from function two\nCaught an error from function two\nCaught an error from function one\nReturn with 1 from main - error\n$\n<\/pre>\n","protected":false},"excerpt":{"rendered":"$ls ascii-table avg.txt case-changer.c env-var-set functions_ver1.c mph-to-kph_v2.c ascii-table.c avg-with-garbage.txt env-var env-var-set.c functions_ver2.c output.c ascii-table.md case-changer env-var.c exist.sh mph-to-kph.c $cat functions_ver1.c #include <stdio.h> int func1(void); int func2(void); int main(int argc, char *argv[]) { printf(“Inside main\\n”); printf(“Calling function one\\n”); if (func1()) { printf(“Everything ok from function one\\n”); printf(“Return with 0 from main – all ok\\n”); return 0; … <\/p>\n