C语言常用调试用函数和宏定义头文件，便捷打印参数信息、输出日志

#include "log.h" int print_arr(char *name, int *nums, int len) { printf("%s = [", name); range (i, 0, len) printf("%s%d", i ? ", " : "", nums[i]); printf("]\n"); return 0; } int print_mat(char *name, int *nums, int h, int w) { printf("%s = [\n", name); range (r, 0, h) { printf(" ["); range (c, 0, w) printf("%s%d", c ? ", " : "", nums[r * w + c]); printf("],\n"); } printf("]\n"); return 0; } int print_bytes(char *name, unsigned char *data, int len) { printf("%s=\"", name); range (i, 0, len) printf("\\x%02x", data[i]); printf("\"\n"); return 0; } char log_buff[0x100000]; // 1MB char *log_pbuff = log_buff; int log_reset = 1; int log_print(char* format, ...) { va_list p; va_start(p, format); #if PRINT_TO_SCREEN vprintf(format, p); #endif #if PRINT_TO_STRING vsprintf(log_pbuff, format, p); log_pbuff = strchr(log_pbuff, 0); #endif #if PRINT_TO_FILE FILE *fp = fopen("log.txt", log_reset ? "w+" : "a+"); log_reset = 0; vfprintf(fp, format, p); fclose(fp); #endif va_end(p); return 0; }