 | This articleneeds additional citations forverification. Please helpimprove this article byadding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "THINK C" – news ·newspapers ·books ·scholar ·JSTOR(August 2019) (Learn how and when to remove this message) |
| Other names | LightSpeed C |
|---|---|
| Original author(s) | Michael Kahl |
| Developer(s) | Think Technologies,Symantec |
| Operating system | MacOS |
| Platform | Motorola 68000 series |
| Successor | Symantec C/C++ |
| Type | Software development tool |
| License | Proprietary |
Think C (stylized asTHINK C), originally known asLightSpeed C, is an extension of theC programming language for theclassic Mac OS developed by THINK Technologies, released first in mid-1986. THINK was founded by Andrew Singer, Frank Sinton and Mel Conway.[1][2] LightSpeed C was widely lauded when it was released, as it used the Macintosh user interface throughout and was extremely fast. It quickly became thede facto C environment on the Mac, and the relatedThink Pascal quickly did the same forObject Pascal development.
THINK Technologies was later bought bySymantec Corporation[3] and the product continued to be developed by the original author, Michael Kahl. Versions 3 and later were essentially a subset ofC++ and supported basicobject-oriented programming (OOP) concepts such assingle inheritance, and extensions to the C standard that conformed more closely to the needs of Mac OS programming.[4] After version 6, the OOP facilities were expanded to a full C++implementation, and the product was rebranded Symantec C++ starting version 7, then under development by different authors. Version 8 brought support for compiling toPowerPC.[5][6]
Think's almost complete ownership of the Mac programming market was broken with the introduction of thePowerPC-based Macs in the early 1990s. Although Symantic released updates that ran on these platforms, these were not released until the machines had been on the market for almost a year.[6] In the meantime,Metrowerks' product,CodeWarrior, took control of the market, being both faster and easier to use than Think's.
Starting with version 4.0, Think included theThink Class Library (TCL), aclass library and framework for Mac programming that ran under both Think C and Think Pascal. This largely replacedMacApp as thede facto class library for Mac programming. Like Think C, this remained a market leader until the release of Metrowerks'PowerPlant, which was generally regarded to be superior. During the early-1990s, Think and Apple collaborated on across platform library known asBedrock, but this effort was abandoned in 1993, by which time PowerPlant was the clear market leader.
Despite the decline in popularity of their IDE, Symantec was eventually chosen by Apple to provide next-generation C/C++compilers for MPW in the form of Sc/Scpp for 68K alongside MrC/MrCpp for PowerPC. These remained Apple's standard compilers until the arrival ofMac OS X replaced them with theGNU Compiler Collection (GCC). Symantec subsequently exited the developer tool business.
THINK Reference was a proprietary documentation database and browser developed bySymantec for programmers on theclassic Mac OS platform. It was included with the THINK C development environment sold by Symantec, and previously included with THINK Pascal. It contained ahypertext version ofApple Computer'sMacintosh ToolboxAPI specifications, along with illustrative code samples.[7][8]
THINK Reference was discontinued in 1994.
Bruce F. Webster ofBYTE namedLightspeed C product of the month for September 1986. While criticizing the documentation as its "single greatest weakness", Webster stated that Lightspeed C would be the choice if he had to select one compiler for the Macintosh.[9]BYTE in 1989 listed Lightspeed C as among the "Distinction" winners of the Byte Awards, stating that it "wins our respect because of its powerful features and low price".[10]
THINK C 5.0 obtained in 4 (out 5) rating in July 1992 issue ofMacworld, praising a fast compilation and an outstanding development environment, despite an insufficient documentation.[11]
Symantec C++ 8.0 obtained a 3 (out 5) rating in July 1995 issue ofMacworld, comparing favourably the speed of its PowerPC compiled code with that ofCodeWarrior at the time, but noting how delayed the product has been and its heavy requirement on resources.[5]
