小编Eoi*_*ery的帖子

所以我正在为iPhone和iPad构建一个系统监控应用程序.无论何时我尝试编译应用程序,我都会收到一条错误,指出"隐含的函数声明'glBindVertexArrayOES'在c99中无效"

#import "AMUtils.h"
#import "AppDelegate.h"
#import "GLCommon.h"
#import "GLLineGraph.h"
#import "GLDataLine.h"

@interface GLDataLine()
@property (nonatomic, weak) GLLineGraph     *graph;

@property (nonatomic, assign) GLuint        glVertexArrayDataLine;
@property (nonatomic, assign) GLuint        glBufferDataLine;
@property (nonatomic, assign) VertexData_t  *dataLineData;
@property (nonatomic, assign) NSUInteger    dataLineDataSize;
@property (nonatomic, assign) GLuint        dataLineDataValidSize;  /* Valid buffer index count */
@property (nonatomic, assign) GLuint        dataLineDataCurrIdx;    /* Current index to be written new values to */
@property (nonatomic, assign) GLfloat       dataLineDataNextX;      /* Each added data element gets it's own unique X position …