[問題] Xcode compile課本source code 一直fail

看板C_and_CPP (C/C++)作者KAINTS (大安Eason哥)時間11年前 (2015/03/18 16:14)推噓1(1推 0噓 1→)

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開發平台(Platform): (Ex: VC++, GCC, Linux, ...) Xoce 6.1.1 額外使用到的函數庫(Library Used): (Ex: OpenGL, ...) 問題(Question)：我只是複製課本source code 到我工作資料夾下編譯就無法成功了出現 Semantic issue Control may reach end of non-void function 錯誤結果(Wrong Output)： Semantic issue Control may reach end of non-void function 程式碼(Code)：(請善用置底文網頁, 記得排版) float sampst(float value, int variable) { /* Initialize, update, or report statistics on discrete-time processes: sum/average, max (default -1E30), min (default 1E30), number of observations for sampst variable "variable", where "variable": = 0 initializes accumulators > 0 updates sum, count, min, and max accumulators with new observation < 0 reports stats on variable "variable" and returns them in transfer: [1] = average of observations [2] = number of observations [3] = maximum of observations [4] = minimum of observations */ static int ivar, num_observations[SVAR_SIZE]; static float max[SVAR_SIZE], min[SVAR_SIZE], sum[SVAR_SIZE]; /* If the variable value is improper, stop the simulation. */ if(!(variable >= -MAX_SVAR) && (variable <= MAX_SVAR)) { printf("\n%d is an improper value for a sampst variable at time %f\n", variable, sim_time); exit(1); } /* Execute the desired option. */ if(variable > 0) { /* Update. */ sum[variable] += value; if(value > max[variable]) max[variable] = value; if(value < min[variable]) min[variable] = value; num_observations[variable]++; return 0.0; } if(variable < 0) { /* Report summary statistics in transfer. */ ivar = -variable; transfer[2] = (float) num_observations[ivar]; transfer[3] = max[ivar]; transfer[4] = min[ivar]; if(num_observations[ivar] == 0) transfer[1] = 0.0; else transfer[1] = sum[ivar] / transfer[2]; return transfer[1]; } /* Initialize the accumulators. */ for(ivar=1; ivar <= MAX_SVAR; ++ivar) { sum[ivar] = 0.0; max[ivar] = -INFINITY; min[ivar] = INFINITY; num_observations[ivar] = 0; } } 補充說明(Supplement)：完整程式碼 simlib.c http://ideone.com/vthy9H 這是寫好的一個simlib我是要call這個simlib一直失敗 google了一下還是不太知道怎麼解決想說上來問版上大大這問題要怎解決以下是完整source code jobshop.c http://ideone.com/PN1Pkr simlib.h http://ideone.com/X1PkWt simlibdefs.h http://ideone.com/z93OJK jobshop.in (input file) http://ideone.com/To0qDS -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 140.112.25.100 ※ 文章網址: https://www.ptt.cc/bbs/C_and_CPP/M.1426666457.A.6C8.html